ChemInform Abstract: Enantio- and Diastereoselective Cyclopropanation with tert-Butyl...

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ChemInform 2011, 42, issue 45 © 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Cyclopropane derivatives Q 0021 DOI: 10.1002/chin.201145042 Enantio- and Diastereoselective Cyclopropanation with tert-Butyl α-Diazopropi- onate Catalyzed by Dirhodium(II) Tetrakis[N-tetrabromophthaloyl-(S)-tert- -leucinate]. — Generally high diastereoselectivity is already observed in the crude mixtures. Yields and enantioselectivity of the chiral cyclopropane subunits depend on the substitution pattern of the starting alkenes. — (GOTO, T.; TAKEDA, K.; ANADA, M.; ANDO, K.; HASHIMOTO*, S.; Tetrahedron Lett. 52 (2011) 32, 4200-4203, http://dx.doi.org/10.1016/j.tetlet.2011.06.008 ; Fac. Pharm. Sci., Hokkaido Univ., Sapporo 060, Japan; Eng.) — Mais 45- 042

Transcript of ChemInform Abstract: Enantio- and Diastereoselective Cyclopropanation with tert-Butyl...

Page 1: ChemInform Abstract: Enantio- and Diastereoselective Cyclopropanation with tert-Butyl α-Diazopropionate Catalyzed by Dirhodium(II) Tetrakis[N-tetrabromophthaloyl-(S)-tert-leucinate].

Cyclopropane derivativesQ 0021 DOI: 10.1002/chin.201145042

Enantio- and Diastereoselective Cyclopropanation with tert-Butyl α-Diazopropi-onate Catalyzed by Dirhodium(II) Tetrakis[N-tetrabromophthaloyl-(S)-tert--leucinate]. — Generally high diastereoselectivity is already observed in the crude mixtures. Yields and enantioselectivity of the chiral cyclopropane subunits depend on the substitution pattern of the starting alkenes. — (GOTO, T.; TAKEDA, K.; ANADA, M.; ANDO, K.; HASHIMOTO*, S.; Tetrahedron Lett. 52 (2011) 32, 4200-4203, http://dx.doi.org/10.1016/j.tetlet.2011.06.008 ; Fac. Pharm. Sci., Hokkaido Univ., Sapporo 060, Japan; Eng.) — Mais

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ChemInform 2011, 42, issue 45 © 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

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