論文 From Enantioenriched Donor–Acceptor Cyclopropylcarbinols to Axially Chiral Arylnaphthalenes via Aryldihydronaphthalenes: Central-to-Axial Chirality Exchange Eur. J. Org. Chem.,:e202101213 2022 Author:Taichi Saito, Yuka Shimizu, Yusuke Araki, Yoshino Ohgami, Yu Kitazawa, Yoshinori Nishii* Abstract:Transformations of enantioenriched donor–acceptor (D–A) cyclopropylcarbinols to enantioenriched 1-arylnaphthalenes that bear an ortho -substituent on a benzene ring provided a successful chirality-exchange method with a high level of stereoinduction. A central-to-central chirality-transfer step, i.e., a Lewis-acid-mediated ring-opening cyclization of enantioenriched D–A cyclopropylcarbinols (97 to >99% ee), afforded 1-aryl-1,2-dihydronaphthalenes with an ortho -substituent (Me, Br, OMe, OBn, or OiPr) on the benzene ring with high enantioselectivity (97 to >99% ee). The central-to-axial chirality-exchange step, i.e., the dehydrogenation of the obtained enantioenriched 1-aryl-1,2-dihydronaphthalenes using DDQ, furnished the axially chiral 1-arylnaphthalenes with high enantioselectivity (97 to >99% ee). Importantly, we developed a highly enantioselective synthesis of a 1-arylnaphthalene with an ortho -alkoxy group on the benzene ring. Moreover, we improved the chirality exchange to furnish a 1-arylnaphthalene with an ortho –alkoxy-substituted benzene ring in high yield with high ee. In addition, we also elucidated the reaction mechanism based on the determination of the absolute configuration, spectral data using NOE, and theoretical calculations.
Asymmetric total synthesis of four bioactive lignans using donor–acceptor cyclopropanes and bioassay of (-)- and (+)-niranthin against hepatitis B and influenza viruses RSC Advances,12:4635-4639 2022 Author:Ryotaro Ota, Daichi Karasawa, Mizuki Oshima, Koichi Watashi, Noriko Shimasaki, and Yoshinori Nishii* Abstract:The asymmetric total synthesis of four lignans, dimethylmatairesinol, matairesinol, (-)-niranthin, and (+)-niranthin has been achieved using reductive ring-opening of cyclopropanes. Moreover, we performed bioassays of the synthesized (+)- and (-)-niranthins using hepatitis B and influenza viruses, which revealed the relationship between the enantiomeric structure and the anti-viral activity of niranthin.
Asymmetric Total Synthesis of a Bioactive Lignanamide Using a 5-endo-tet-type Cyclization of Activated Cyclopropylcarbinols and Synthetic Support for the Reaction Mechanism Eur. J. Org. Chem.,:e202200563 2022 Author:Taichi Saito, Kazuki Shibata, Ryohei Takagi, Yuka Shimizu, Naoya Takaki, and Yoshinori Nishii* Abstract:This full paper is accepted as 'Very Important Paper' in EurJOC. The first enantioselective total synthesis of a bioactive lignanamide was achieved with high enantiomeric excess. Key synthetic steps include an organocatalytic enantioselective cyclopropanation and a Lewis-acid-mediated chirality-transferring 5-endo-tet-type cyclization that proceeds with a very high degree of stereoinduction. The proposed mechanism of the key reaction is supported by the experimental results. Based on these experimental results, the 5-endo-tet-type cyclization of a cyclopropylcarbinol proceeds predominantly via an SN1 mechanism with high trans-selectivity, which arises from the steric hindrance of the neighboring substituent. Minor pathways include the anchimeric participation of (i) the oxygen atom of the benzoyl group in an SN2 mechanism and/or (ii) a benzene-coordinated transition state in an SN1-like mechanism.
ポドフィリックアルデヒドの全合成における中間体の反応性の計算化学的考察 J. Comput. Chem. Jpn.,16(4):102-105 2017 Author:三原陽子, 森川大*, 野村泰志, 西井良典
An asymmetric total synthesis of tupichilignan A using donor-acceptor cyclopropanes: a structural revision of tupichilignan A Asian J. Org. Chem.,6:977-980 2017 Author:Yumi Kimura, Yoshitomo Sone, Taichi Saito, Takehito Mochizuki, and Yoshinori Nishii*
Catalytic hydrogenolysis of enantioenriched donor-acceptor cyclopropanes using H2 and Palladium on charcoal Eur. J. Org. Chem.,:2842-2847 2017 Author:Yoshitomo Sone, Yumi Kimura, Ryotaro Ota, Takehito Mochizuki, Junki Ito and Yoshinori Nishii*
A formal homo-Nazarov cyclization of enantioenriched donor-acceptor cyclopropanes and following transformations: asymmetric synthesis of multi-substituted dihydronaphthalenes Org. Biomol. Chem.,15:2443-2449 2017 Author:Seijiro Takada, Naoya Takaki, Kenta Yamada, and Yoshinori Nishii*
Stereochemical courses and mechanisms of ring-opening cyclization of donor-acceptor cyclopropylcarbinols and cyclization of 7-benzyloxy dibenzyl lignan lactones Chem. Lett.,46:524-527 2017 Author:Takada, seijiro; Sasazawa, Kazuya; Yubune, Toshihide; Takaki, Naoya; Ota, Ryotaro; Nishii, Yoshinori*
Cu-catalyzed 1,5-addition of Grignard reagents to enantioenriched donor-acceptor cyclopropanes with inversion Asian J. Org. Chem.,5:1225-1229 2016 Author:S. Takada, T. Saito, K. Iwata, Y. Nishii* Keywords:cyclopropane
Stereoselective oxy-homo-Michael reactions of enantioenriched bicyclic donor–acceptor cyclopropanes to afford optically active trans-α,β-disubstituted γ-butyrolactones possessing three serial chiral centers Tetrahedron Lett.,57:2422-2425 2016 Author:Seijiro Takada, Kiitsu Iwata, Toshihide Yubune, and Yoshinori Nishii*
Highly Stereoselective C-C Bond-Forming Reactions on Cyclopropane Rings using 1-(Methoxycarbonyl)cyclopropylzinc bromides Chem. Lett.,44:818-820 (open access) 2015 Author:D. Sakuma, K. Yamada, K. Sasazawa and Y. Nishii*
First Total Synthesis of(+)-Podophyllic Aldehydes Chem. Lett.,44:297-299 (open access article) 2015 Author:Junki Ito, Daichi Sakuma, and Yoshinori Nishii*
Total Synthesis of (±)-Cyclogalgravin and its Dicarboxyl Analog Using Sc(OTf)3-Mediated Highly Diastereoselective Ring Expansion of 1-(Arylhydroxymethyl)cyclopropanecarboxylates Chem. Lett.,43:610-611 (open access article) 2014 Author:Daichi Sakuma, Junki Ito, Ryo Sakai, Ryota Taguchi, Yoshinori Nishii*
First Total Synthesis of (±)-6'-Methoxyretrojusticidin B Using Regiocontrolled Benzannulation: structural Inconsistency with Procumphthalide A and Its Revisionto 5'-Methoxyretrochinensin Synlett,15:2275-2278 2010 Author:Yoshida, E.; Yamashita, D.;Sakai, R.; Tanabe, Y.; and Nishii, Y*.
Lewis Acid-mediated Highly Regioselective Ring-expansion of Methyl 2-Phenyl-1-(arylhydroxymethyl)cyclopropanecarboxylates Chem. Lett.,39:194-195 (open access article) 2010 Author:E. Yoshida, K. Nishida, K. Toriyabe, R.Taguchi, J. Motoyoshiya, Y. Nishii*
Chemiluminescence of 9-benzylidene-10-methylacridans with electron-donating groups by chemically generated singlet oxygen- Application to metal ion sensing usingazacrowned compound Bioluminescence and Chemiluminescence,:237-240 2009 Author:J. Motoyoshiya, T. Tanaka, M. Kuroe, Y. Nishii.
First total synthesis of theopederin B Tetrahedron Lett.,50:3597-3600 2009 Author:Y. Nishii, T. Higa, S. Takahashi, T. Nakata
Toward a Chemiluminescent Molecular Device: Metal Ion-Enhanced Chemiluminescence of Benzylidenacridan with 15-Monoazacrown-5 J. Org. Chem.,74(3):1014-1018 2009 Author:Motoyoshiya, J.; Tanaka,T.; Kuroe, M.; and Nishii, Y.
Highly Stereoselective C-Silylation and Alkylation of 1-Chlorocyclopropanecarboxylic Ester Using SmI2 Chem. Lett.,38:1078-1079 2009 Author:E. Yoshida, T. Nagano, J. Motoyoshiya, Y. Nishii*
Fluorescence quenching of versatile fluorescent probes based on strongly electron-donating distyrylbenzenes responsive to aromatic chlorinated and nitro compounds, boronic acid and Ca2+ Spectrochimica Acta part A:,69:167-173 2008 Author:J. Motoyoshiya, Z. Fengqiang, Y. Nishii, H. Aoyama
SmI2-Promoted Reformatsky-Type Reaction and Acylation of Alkyl 1-Chlorocyclopropancarboxylates Org. Lett.,10:5453-5456 2008 Author:T. Nagano, J. Motoyoshiya, A. Kakehi, Y. Nishii*
Practical, general, and systematic method for optical resolution of gem-dihalo- and monohalo cyclopropanecarboxylic acids utilizing chiral 1,1’-binaphtholmonomethyl ethers: Application to the synthesis of three chiral pesticides Org. Biomol. Chem.,6:540-547 2008 Author:H. Yasukochi, T. Atago, A. Tanaka, H. Nakatsuji, E. Yoshida, A. Kakehi, Y. Nishii, Y. Yanabe
Chemiluminescence of 4-styrylphthalhydrazides with crown etheras ionophore Luminescence,23:37-41 2008 Author:J. Motoyoshiya, M. Hotta, Y. Nishii, H. Aoyama
Synthesis of Hypericin via Emodin Anthrone Derived from a Two-fold Diels-Alder Reaction of 1,4-Benzoquinone Natural Prod. Commun.,2:67-70 2007 Author:J. Motoyoshiya, Y. Masue, Y. Nishi, H. Aoyama
Highly Stereoselective Radical Carbonylations of gem-Dihalocyclopropnane Derivatives with CO Org. Lett.,9:563-566 2007 Author:Yoshinori Nishii*, Takao Nagano, Hideki Gotoh, Ryohei Nagase, Jiro Motoyoshiya, Hiromu Aoyama, Yoo Tanabe*
Synthesis of Unsymmetrically and Highly Substituted Thiophenes Utilizing Regioselective Ring-expansion of gem-Dichlorocyclopropyl Ketones with Lawesson's Reagent Chem. Lett.,36(1):62-63 2007 Author:Takao Nagano, Hiroki Kimoto, Hidefumi Nakatsuji, Jiro Motoyoshiya, Hiromu Aoyama, Yoo Tanabe,* Yoshinori Nishii*
A 1,4-distyrylbenzene Bearing Donor-Acceptor Substituent as a fluorescence Probe Responsive to Protic Solvents ITE Letters,7:593-596 2006 Author:J. Motoyoshiya, T. Yokozeki, Z. Fengqiang, Y. Nishii, H. Aoyama
Unprecedented chemiluminescence behaviour during peroxyoxalate chemiluminescence of oxalates with fluorescent or electron-donating aryloxy groups LUMINESCENCE,21(3):164-173 2006 Author:Koike, R; Kato, Y; Motoyoshiya, J; Nishii, Y; Aoyama, H
Different photochemical behavior of bis(biphenyl)ethylenes and ethenes in solution and in the solid-state: Structurally controlled Z/E-photoisomerization in the solid-state JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,184(1-2):44-49 2006 Author:Zhu, FQ; Motoyoshiya, J; Nishii, Y; Aoyama, H; Kakehi, A; Shiro, M
Photochemical behavior of some p-styryistilbenes and related compounds: Spectral properties and photoisomerizationin solution and in solid state PHOTOCHEMISTRY AND PHOTOBIOLOGY,82(6):1645-1650 2006 Author:Zhu, FQ; Motoyoshiya, J; Nakamura, J; Nishii, Y; Aoyama, H
Synthesis of 4-Styrylphthalhydrazides and Their Chemiluminescence Reaction. Emitters and Chemiluminescence Efficiency Highly Dependent on Electronic Nature of Styryl Goups J. Heterocyclic Chem.,42:1063-1068 2005 Author:Jiro Motoyoshiya, Kazuya Yokota, Takuro Fukami, Shoji Konno, AyaYamamoto, Masanori Hotta, Ryu Koike, Sachiko Yoshioka, Yoshinori Nishii, and Hiromu Aoyama
Regiocontrolled benzannulation of diaryl (gem-dichlorocyclopropyl)methanols for the synthesis of unsymmetrically substituted alpha-arylnaphthalenes: Application to total synthesis of natural lignan lactones JOURNAL OF ORGANIC CHEMISTRY,70(7):2667-2678 2005 Author:Nishii, Y; Yoshida, T; Asano, H; Wakasugi, K; Morita, J; Aso, Y; Yoshida, E; Motoyoshiya, J; Aoyama, H; Tanabe, Y
Poly(benzyl ether) dendrimers with strongly fluorescent distyrylbenzene cores as the fluorophores for peroxyoxalate chemiluminescence: insulating effect of dendritic structures on fluorescent sites TETRAHEDRON,61(46):11020-11026 2005 Author:Koike, R; Katayose, Y; Ohta, A; Motoyoshiya, J; Nishii, Y; Aoyama, H
Chemiluminescent Autoxidation of alpha-Silyl Carbanios Derived From 9-Silyl-10-Methylacridanes Heterocycles,:1667-1672 2004 Author:Jiro Motoyoshiya, Kunihiko Tokutake, Motoki Kuroe, Sachiko Yoshioka, Yoshinori Nishii, and Hiromu Aoyama
A Facile Synthesis of the Angucyclinone Antibiotic (+)-Rubiginone B2 Involving the BF3-Mediated Diels-Alder Reaction of Juglone Synthesis,:2099-2102 2004 Author:Jiro Motoyoshiya, Yusuke Masue, Gento Iwayama, Sachiko Yoshioka, Yoshinori Nishii, and Hiromu Aoyama
Chirality Exchange from sp3 Central Chirality to Axial Chirality: Benzannulation of Optically Active Diaryl-2,2-dichlorocyclopropylmethanols to Axially Chiral alpha-Arylnaphthalenes J. Am. Chem. Soc.,126:5358-5359 2004 Author:Yoshinori Nishii, Kazunori Wakasugi, Keisuke Koga, Yoo Tanabe
Reactions of 9-Phosphorylacridines with Aqueous Hydrogen Peroxide Accompained by Weak Chemiluminescence: Remarkable Substituent Effect on Emission Efficiency Heterocycles,60:2543-2549 2003 Author:Jiro Motoyoshiya, Rie Shima, Yutaka Takaguchi, Yoshinori Nishii, and Hiromu Aoyama
Simple, Mild, and Practical Esterification, Thioesterification, and Amide Formation Utilizing p-Toluenesulfonyl Chloride and N-Methylimidazole Adv. Synth. Catal.,345:1209-1214 2003 Author:K. Wakasugi, Akira Iida, T. Misaki, Y. Nishii, Y. Tanabe
Novel and efficient method for esterification, amidation between carboxylic acids and equimolar amounts of alcohols, and amines utilizing Me2NSO2Cl and N,N-dimethylamines; Its application to the synthesis of coumaperine, a natural chemopreventivedieneamide Tetrahedron,59:5337-5345 2003 Author:K. Wakasugi, A. Nakamura, A. Iida, Y. Nishii, N. Nakatani, S. Fukushima, and Y. Tanabe
Practical Short-step Synthesis of 1b?Methylcarbapenem Utilizing a New Dehydration Ti-Dieckmann Condensation Adv. Synth. Catal.,345:967-970 2003 Author:Y. Tanabe, N. Manta, R. Nagase, T. Misaki, Y. Nishii, M. Sunagawa, and A. Sasaki
Efficient One-step Synthesis of Trialkylsubstituted 2(5H)-Furanone Utilizing Direct Ti-Crossed Aldol Condensation and Its Application to the Straightforward Synthesis of (R)-Mintlactone and (R)-Menthofuran Chem. Commun.,:2542-2545 2002 Author:Y. Tanabe, K. Mitarai, T. Higashi, T. Misaki and Y. Nishii
Direct, Practical, and Powerful Crossed Aldol Additions between Ketones and Ketones or Aldehydes Utilizing Environmentally Benign TiCl4 - Bu3N Reagent Tetrahedron (Symposium-in-print),58:8269 2002 Author:Y. Tanabe, N. Matsumoto, T. Higashi, T. Misaki, T. Itoh, M. Yamamoto, K. Mitarai, and Y. Nishii
Total synthesis of pederin, an insect toxin: an efficient synthesis of the right half, (+)-benzoylpedamide Tetrahedron (Symposium-in-print),58:6359 2002 Author:T. Takemura, Y. Nishii, S Takahasi, J. Kobayashi, and T. Nakata
Silazanes / catalytic bases: Mild, powerful and chemoselective agents for the preparation of enol silyl ethers from ketones and aldehydes Chem. Commn.,:1628 2002 Author:Yoo Tanabe, T. Misaki, M. Kurihara, A. Iida, and Y. Nishii
Stereoselective Bifurcating-type Radical Cyclization of gem-Dibromocyclopropanes for the Synthesis of Uniquely Fused 5-3-5-Type Tricyclic Compounds Chem. Lett.,:30-31 2002 Author:Y. Nishii, A. Fujiwara, K. Wakasugi, K. Yanagi, M. Miki, and Y. Tanabe
Synthesis and Stereostructure-Activity Relationship of Three Asymmetric Center Pyrethroids: 2-Methyl-3-phenylcyclopropyl-methyl 3-Phenoxybenzyl Ether and Cyanohydrin Ester Bioorg. Med. Chem.,9:33 2001 Author:Y. Nishii, N. Maruyama, K. Wakasugi and Y. Tanabe
Cyclopropane-shift type reaction of diaryl(2-halogenocyclopropyl)methanols promoted by Lewis acids Tetrahedron Lett.,41:5937 2000 Author:K. Wakasugi, Y. Nishii, and Y. Tanabe
Does the Facile Reductive Rearrangement of 2-Allyloxycyclohexenone with Bu3SnH Occur by a Radical-Accelerated Claisen Rearrangement or an Stannyloxy-Accelerated Claisen Rearrangement? J. Am. Chem. Soc.,121:8955-8956 1999 Author:D. P. Curran and Y. Nishii
Dimethylation and Hydrodechlorination of gem-Dihalocyclopropaneswith Grignard Reagents Promoted by Fe(III) or Co(II) Catalysts Synlett,:67-69 1998 Author:Y. Nishii, K. Wakasugi, and Y. Tanabe
Total Synthesis of (-)-Periplanones C and D. Their Pheromonal Activities against Three Periplaneta Species Tetrahedron,53:7209 1997 Author:Y. Nishii, K. Watanabe, T. Yoshida, T. Okayama, S. Takahashi, and Y. Tanabe
Enantiomeric Resolution of a Germacrene-D Derivative by Chiral High-performance Liquid Chromatography Biosci. Biotech. Biochem,61:547 1997 Author:Y. Nishii, T. Yoshida, and Y. Tanabe
Sequential and Regioselective Friedel-Crafts Reactions of gem-Dihalocyclopropanecarbonyl Chlorides with Benzenes for the Synthesis of 4-Aryl-1-naphthol Derivatives J. Chem. Soc., Perkin Trans. 1,:477-486 1997 Author:Y. Nishii and Y. Tanabe
Regiocontrolled Benzannulation of Diaryl(gem-dichlorocyclopropyl)methanols for the Synthesis of "Unsymmetrically" Substituted a-Arylnaphthalenes Tetrahedron Lett.,38:7195-7198 1997 Author:Y. Nishii, T. Yoshida, and Y. Tanabe
Novel Method for the Synthesis of a- and b-Halonaphthalenes via Regioselective Ring Cleavage of Aryl (gem-dihalocyclopropyl)methanols. Application to Total Synthesis of Lignan Lactones, Justicidin E and Taiwanin C J. Chem. Soc., Perkin Trans. 1,:2157 1996 Author:Y. Tanabe, S. Seko, Y. Nishii, T. Yoshida, N, Utsumi, and G, Suzukamo
Synthesis and Stereostructure-activity Relationship of a Synthetic pyrethroid, 2-Chloro-1-methyl-3-phenylcyclopropylmethyl 3-Phenoxybenzyl Ether J. Chem. Soc., Perkin Trans. 1,:1243-1249 1996 Author:Y. Nishii, K. Wakimura, T. Tsuchiya, S. Nakamura and Y. Tanabe
Sequential and Highly Stereoselective Intermolecular Radical Additions of 2,3-cis-Disubstituted 1,1-Dibromo- and 1-Bromocyclopropanes to Electron-Deficient Olefins Tetrahedron Lett.,37:1837-1840 1996 Author:Y. Tanabe, K. Wakimura and Y. Nishii
Synthesis of 2,5-Diaryl-3-halofurans via Regioselective Ring Cleavage of 2-Aryl-3,3-dihalocyclopropyl Aryl Ketones Synthesis,:338 1996 Author:Y, Tanabe, K. Wakimura, Y, Nishii, and Y, Muroya
Regioselective Cyclocondensation of Chlorocarbonylsulfenyl Chloride with Hydrazones: Efective Synthesis of a Class of Sulfur and Nitrogen Containing Heterocycles with -COS- Linkage Heterocycles,43:141 1996 Author:Y. Tanabe, K. Mori, and Y. Nishii
Synthesis of Perhydoro-1,3,4-thiadiazin-5-ones and 3-Arylaminothiazolidin-4-ones by the Regioselective Cyclocondensation of 2-Sulfanylalkanoic Acids or Their Silyl Esters with Methyl and Aryl hydrazones Heterocycles,41:2033 1995 Author:Y. Tanabe, M. Nagaosa, Y. Nishii, and Y, Muroya
Sequential and Regioselective Friedel-Crafts Reaction of gem-Dihalocyclopropanecarbonyl Chlorides with Benzenes for the Synthesis of 4-Aryl-1-naphthol Derivatives Tetrahedron Lett.,36:8803-8806 1995 Author:Y. Nishii and Y. Tanabe
Synthetic Pyrethroid Containing Halocyclopropane Structure Biosci. Biotech. Biochem.,59:1335-1336 1995 Author:Y. Nishii, H. Matsumura,Y. Muroya, T. Tsuchiya, Y. Tanabe
A Novel and Regioselective Radical Cyclization of gem- Dihalocyclopropyl Substituted Alkenes and Alkynes Chem. Lett.,:1757-1760 1994 Author:Y. Tanabe, Y. Nishii, and K. Wakimura,
Organic synthesis of biologically active compounds toward the chemical protection of textile 2nd Asian Protective Clothing Conference 2011 Presenter:Yoshinori NISHII, Ryo SAKAI, Eri YOSHIDA, Yoo TANABE
SmI2-Promoted Reformatsky-Type Reaction of Alkyl 1-Chlorocyclopropanecarboxylates 5th International Conference on Adovanced Fiber/Textile Materials 2009 in Ueda. 2009 Presenter:E. Yoshida, T. Nagano, Y. Nishii, J. Motoyoshiya
Chemiluminescence contolled by interaction of ligands and metal ions 18th International Symposium on the Photochemistry and Photophysics of Coordination Compounds 2009 Presenter:J. Motoyoshiya, T. Maruyama, R. Arai, Y. Nishii
Chemiluminescence of 9-benzylidene-N-methylacridans with electron-donating groups by chemically generated singlet oxygen. Application to metal ion sensing using azacrowned compound 15th International symposium on Bioluminescence and chemiluminescence 2009 Presenter:J. Motoyoshiya, T. Tanaka, M. Korue, Y. Nishii
Synthetic Studies utilizing Cyclopropanes, 3rd International Symposium on High-Tech Fiber Engineering 2009 2009 Presenter:Y. Nishii
SmI2-Promoted Reformatsky-Type Reaction of Alkyl 1-Chlorocyclopropanecarboxylates 15th IUPAC Symposium on Organometallic Chemistry Directed Towards Organic Synthesis (OMCOS15) 2009 Presenter:Y. Nishii, E. Yoshida, T. Nagano, J. Motoyoshiya
Synthetic study for novel biologically active compounds aiming to functionalized fibers (2) : Highly regiocontrolled ipso-type and chirality exchange benzannulation of chiral diaryl gem-dichlorocycropropylmethanols and its application to total synthesis of axially chiral natural lignan lactones (antiviral, anti-HIV and antidepressant activity) 4th International Conference on Advanced Fiber/Textile Materials 2007 in Ueda (ICAFTM2007) 2007 Presenter:E. Yoshida, D. Yamashita, J. Motoyoshiya, Y. Nishii
Synthetic study for novel biologically active compounds aiming to functionalized fibers (1) :Radical carbonylation and ring-expansion of gem-dichlorocyclopropanes for the synthesis of pyrethroids and b-amyloid plaque imaging reagent 4th International Conference on Advanced Fiber/Textile Materials 2007 in Ueda (ICAFTM2007) 2007 Presenter:T. Nagano, H. Kimoto, Y. Yamanaka, J. Motoyoshiya,Y. Nishii
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