A Novel Class of Tunable Zinc Reagents (RXZnCH<sub>2</sub>Y) for Efficient Cyclopropanation of Olefins
作者:Jon C. Lorenz、Jiang Long、Zhiqiang Yang、Song Xue、Yinong Xie、Yian Shi
DOI:10.1021/jo030312v
日期:2004.1.1
A class of zincreagents (RXZnCH2Y) generated with an appropriate organozinc is very effective for the cyclopropanation of olefins. The reactivity and selectivity of these reagents can be regulated by tuning the electronic and steric nature of the RX group on Zn. A reasonable level of enantioselectivity was obtained for the cyclopropanation of unfunctionalized olefins when a chiral (iodomethyl)zinc
Asymmetric Simmons−Smith Cyclopropanation of Unfunctionalized Olefins
作者:Jiang Long、Yi Yuan、Yian Shi
DOI:10.1021/ja030488e
日期:2003.11.1
This paper describes a promising asymmetric cyclopropanation system for unfunctionalized olefins using readily available dipeptide N-Boc-l-Val-l-Pro-OMe as ligand.
JASON, M. E., TETRAHEDRON LETT., 1982, 23, N 16, 1635-1638
作者:JASON, M. E.
DOI:——
日期:——
LAMBERTS, J. J. M.;LAARHOVEN, W. H., J. ORG. CHEM., 1983, 48, N 13, 2202-2206
作者:LAMBERTS, J. J. M.、LAARHOVEN, W. H.
DOI:——
日期:——
MCNAB, HAMISH, J. CHEM. RES. SYNOP., 1985, N 10, 320-321