Enantioselective Cyclopropanation of Allylic Alcohols with Dioxaborolane Ligands: Scope and Synthetic Applications
作者:André B. Charette、Hélène Juteau、Hélène Lebel、Carmela Molinaro
DOI:10.1021/ja982055v
日期:1998.11.1
the conversion of allylicalcohols into the corresponding enantiomerically enriched cyclopropanes using bis(iodomethyl)zinc. A variety of chiral, nonracemic cyclopropylmethanols could be obtained according to this method. This methodology was extended with success to the cyclopropanation of unconjugated and conjugated polyenes and homoallylic alcohols. The cyclopropanation of allylic carbamates has also
Highly Enantioselective Oxidation of <i>cis</i>-Cyclopropylmethanols to Corresponding Aldehydes Catalyzed by Chloroperoxidase
作者:Shanghui Hu、Jonathan S. Dordick
DOI:10.1021/jo016161i
日期:2002.1.1
catalyzes the enantioselective oxidation of cyclopropylmethanols. This finding enables a novel route to the synthesis of optically active cyclopropane derivatives, which occur widely in natural products and compounds of pharmaceutical interest. In addition, chiral cyclopropane molecules may be useful model substrates to investigate reaction mechanisms of CPO and the related cytochromesP450.
Provided is a plant growth regulator having for an active ingredient thereof an α-ketol fatty acid derivative represented by the following general formula (1).
提供的是一种植物生长调节剂,其活性成分为以下通式(1)所表示的α-酮基脂肪酸衍生物。
Design of Amphoteric Bifunctional Ligands: Application to the Enantioselective Simmons-Smith Cyclopropanation of Allylic Alcohols
作者:Andre B. Charette、Helene Juteau
DOI:10.1021/ja00085a068
日期:1994.3
Synthesis and odor description of optically active cyclopropanated analogues of geraniol, nerol, nor-leaf alcohol, and matsutake alcohol
Both enantiomers of cyclopropanated analogues of geraniol, nerol, nor-leaf alcohol, and matsutake alcohol were synthesized and their odor properties evaluated. Odor characters in enantiomeric pairs were similar in the geraniol series. The (+)-(2R,3S)-nerol derivative showed various odor aspects. From the results of nor-leaf alcohol derivatives, an interaction between the (2-re,3-re)-face of nor-leaf alcohol and the human olfactory receptor was suggested. The odor of (3R)-matsutake alcohol derivative was superior to the enantiomer. (c) 2007 Elsevier Ltd. All rights reserved.