Reduction of trihalomethyl carbinols and their acetates, mesylates and tosylates by indium metal
作者:Brindaban C. Ranu、Sampak Samanta、Arijit Das
DOI:10.1016/s0040-4039(02)01262-5
日期:2002.8
A study of reduction of trihalomethyl carbinols and their derivatives by indium metal shows that while trichloromethyl carbinols produce a mixture of the corresponding dichloromethyl carbinol and vinylidene dichloride, the acetates, mesylates and tosylates of the trichloro- and tribromomethyl carbinols undergo clean reduction to provide the respective vinylidene dichloride only.
PYRIDONE COMPOUND, AND AGRICULTURAL AND HORTICULTURAL FUNGICIDE HAVING THIS AS ACTIVE COMPONENT
申请人:Mitsui Chemicals Agro, Inc.
公开号:EP3611164A1
公开(公告)日:2020-02-19
Novel compounds controlling plant diseases are provided. Pyridone compounds of the invention are novel and can control plant diseases. The pyridone compounds of the invention encompass compounds of formula (1) and salts thereof.
β-(Carbonatoxy)alkyl radicals: a new subset of β-(ester)alkyl radical fragmentation during copper(I)-mediated synthesis of 1,1-dichloro-1-alkenes
作者:Ram N. Ram、Ram K. Tittal
DOI:10.1016/j.tetlet.2014.05.097
日期:2014.7
A new subset of β-(ester)alkyl radicals is presented. It is the first study on the chemistry of β-(alkoxycarbonyloxy)alkyl radicals that fill the gap in the spectrum of the migrating groups in β-(ester)alkyl radical reactions. The change from less nucleofugal (acetate) group to the more nucleofugal (carbonate) group in the spectrum of the migrating group changed the reaction path from rearrangement
Pd0-Catalyzed carbonylation of 1,1-dichloro-1-alkenes, a new selective access to Z-α-chloroacrylates
作者:Martin Arthuis、Anne Lecup、Emmanuel Roulland
DOI:10.1039/c0cc02517h
日期:——
A novel and fully chemo- and stereoselective three component strategy leading to Z-α-chloroacrylates by a Pd0-catalyzed reaction of CO (1 atm) with 1,1-dichloro-1-alkenes and various alcohols is disclosed. This catalytic approach compares favourably with the Wittig type strategies as α-chloroacrylates of pure Z configuration are obtained in high yield.
本研究揭示了一种新型、完全化学和立体选择性的三组分策略,通过 Pd0 催化 CO (1 atm) 与 1,1-dichloro-1-alkenes 和各种醇的反应生成 Z-δ-氯丙烯酸酯。这种催化方法与 Wittig 类型的策略相比更有优势,因为它能以高产率获得纯 Z 构型的 α 氯丙烯酸酯。