Highly efficient synthesis of chiral β-hydroxy sulfides with high enantiomeric purity via CBS-oxazaborolidine-catalyzed borane reduction
摘要:
A simple and efficient synthesis of chiral beta-hydroxy p-tolylsulfides with high enantiomeric purity by CBS-oxazaborolidine-catalyzed asymmetric borane reduction of beta-keto p-tolyisulfides using N-ethyl-N-isopropylaniline-borane complex as the borane carrier is reported. (C) 2002 Elsevier Science Ltd. All rights reserved.
PYRIDAZINONE COMPOUND AND HERBICIDE AND NOXIOUS ARTHROPOD CONTROLLING AGENT COMPRISING IT
申请人:Kuragano Takashi
公开号:US20130281299A1
公开(公告)日:2013-10-24
The present invention relates to a pyridazinone compound of the formula (I): wherein R
1
represents hydrogen, a C
1-6
alkyl group, and the like, R
2
represents halogen, a cyano group, a nitro group, a C
1-6
alkoxy group, and the like, G represents hydrogen, and the like, Z represents halogen, a cyano group, a nitro group, a C
1-6
alkyl group, and the like, and n represents an integer of 1-5 useful as an active ingredient in a herbicideand a noxious arthropod controlling agent.
Copper-Catalyzed Synthesis of α-Thioaryl Carbonyl Compounds Through SS and CC Bond Cleavage
作者:Liang-Hua Zou、Daniel L. Priebbenow、Long Wang、Jakob Mottweiler、Carsten Bolm
DOI:10.1002/adsc.201300566
日期:2013.9.16
α‐thioaryl esters employing copper acetate (hydrate) as catalyst and readily accessible diaryl disulfides and β‐diketones (or β‐keto esters) has been developed. Both alkyl‐ and aryl‐substituted carbonylcompounds can be prepared.
Highly efficient synthesis of chiral β-hydroxy sulfides with high enantiomeric purity via CBS-oxazaborolidine-catalyzed borane reduction
作者:Byung Tae Cho、Ok Kyoung Choi、Dong Jun Kim
DOI:10.1016/s0957-4166(02)00193-3
日期:2002.5
A simple and efficient synthesis of chiral beta-hydroxy p-tolylsulfides with high enantiomeric purity by CBS-oxazaborolidine-catalyzed asymmetric borane reduction of beta-keto p-tolyisulfides using N-ethyl-N-isopropylaniline-borane complex as the borane carrier is reported. (C) 2002 Elsevier Science Ltd. All rights reserved.