P(MeNCH<sub>2</sub>CH<sub>2</sub>)<sub>3</sub>N: A Highly Selective Reagent for Synthesizing <i>trans</i>-Epoxides from Aryl Aldehydes
作者:Xiaodong Liu、John G. Verkade
DOI:10.1021/jo000122+
日期:2000.7.1
In contrast to its acyclic analogue P(NMe2)3 (1), which in benzene at room temperature reacts with two aryl aldehyde molecules bearing electron-withdrawing groups to give the corresponding diaryl epoxide as an isomeric mixture (trans/cis ratios: 72/28-51/49), P(MeNCH2CH2)3N (2a) under the same reaction conditions is found to be a highly selective reagent that provides epoxides with trans/cis ratios
<b>Nucleophilic Reactions of Trivalent Phosphorus Compounds: A New Synthesis of Epoxides</b>
作者:Victor. Mark
DOI:10.1021/ja00895a051
日期:1963.6
Epoxide Hydrolase-Catalyzed Enantioselective Synthesis of Chiral 1,2-Diols via Desymmetrization of <i>m</i><i>eso</i>-Epoxides
作者:Lishan Zhao、Bin Han、Zilin Huang、Mark Miller、Hongjun Huang、Dan S. Malashock、Zuolin Zhu、Aileen Milan、Dan E. Robertson、David P. Weiner、Mark J. Burk
DOI:10.1021/ja0466210
日期:2004.9.1
The discovery, from nature, of a diverse set of microbial epoxide hydrolases is reported. The utility of a library of epoxide hydrolases in the synthesis of chiral 1,2-diols via desymmetrization of a wide range of meso-epoxides, including cyclic as well as acyclic alkyl- and aryl-substituted substrates, is demonstrated. The chiral (R,R)-diols were furnished with high ee's and yields. The discovery
据报道,从自然界中发现了多种微生物环氧化物水解酶。证明了环氧化物水解酶库在通过广泛的内消旋环氧化物(包括环状和非环状烷基和芳基取代底物)的去对称化合成手性 1,2-二醇中的效用。手性 (R,R)-二醇具有高 ee 和产率。还描述了第一个微生物环氧化物水解酶的发现,提供了互补 (S,S)-二醇。
Potassium channel blocking 1,2-bis(aryl)ethane-1,2-diamines active as antiarrhythmic agents
question. Herein, we present synthesis and optimization of a novel series of 1,2-bis(aryl)ethane-1,2-diamines with selectivity for Kv1.5 over other potassium ion channels. The effective refractory period in the right atrium (RAERP) in a rabbit PD model was investigated for a selection of potent and selective compounds with balanced DMPK properties. The most advanced compound (10) showed nanomolar potency