Enantioselective Rh-catalyzed transfer hydrogenation of α-sulfonyloxy heteroaryl ketones; asymmetric synthesis of (S)-bufuralol
摘要:
Asymmetric transfer hydrogenation of a-sulfonyloxy heteroaryl ketones mediated by Cp*RhCl[(S,S)-TsDPEN] using an azeotropic mixture of formic acid/triethylamine afforded the corresponding diol-2-monosulfonates in excellent yield with high enantioselectivity. This led to the asymmetric synthesis of (S)-bufuralol. (C) 2009 Elsevier Ltd. All rights reserved.
<i>m</i>-Iodosylbenzoic Acid: Recyclable Hypervalent Iodine Reagent for <font>α</font>-Tosyloxylation and <font>α</font>-Mesyloxylation of Ketones
作者:Mekhman S. Yusubov、Tatyana V. Funk、Roza Y. Yusubova、Galina Zholobova、Andreas Kirschning、Joo Yeon Park、Ki-Whan Chi
DOI:10.1080/00397910902838870
日期:2009.10.12
m-Iodosylbenzoic acid-mediated reactions of various carbonyl compounds provided -organosulfonyloxy carbonyl compounds in good yields. The final products could be easily isolated without any chromatographic purification by simple treatment of the crude mixture with an anionic exchange resin.
Khanna, Mahavir S.; Sangeeta; Garg, Chandra P., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1993, vol. 32, # 8, p. 892
作者:Khanna, Mahavir S.、Sangeeta、Garg, Chandra P.、Kapoor, Ram P.
DOI:——
日期:——
Direct .alpha.-mesyloxylation of ketones and .beta.-dicarbonyl compounds with [hydroxy(mesyloxy)iodo]benzene
作者:Jayant S. Lodaya、Gerald F. Koser
DOI:10.1021/jo00236a048
日期:1988.1
LODAYA, JAYANT S.;KOSER, GERALD F., J. ORG. CHEM., 53,(1988) N 1, 210-212