Cobalt-Catalyzed Intramolecular Oxidative C(sp<sup>3</sup>)–H/N–H Carbonylation of Aliphatic Amides
作者:Li Zeng、Shan Tang、Dan Wang、Yi Deng、Jeng-Lung Chen、Jyh-Fu Lee、Aiwen Lei
DOI:10.1021/acs.orglett.7b00825
日期:2017.4.21
reaction protocol is developed to achieve the intramolecular oxidative C(sp3)–H/N–H carbonylation of aliphaticamides with CO. Various substituted propanamides are selectively transformed into corresponding succinimides in good to high yields. Notably, predominant selectivity for the carbonylation at the α-methyl groups of linear aliphaticamides is observed in this reaction system.
The present invention provides a liquid deodorant suitable for deodorization of spaces and fiber products, and a hair cosmetic and skin cosmetic having a high deodorization effect. Here, any of the hair cosmetic and skin cosmetic may be that referred to as a body deodorant. Namely, the present invention provides a deodorant comprising a deodorant organic dibasic acid composed of an organic dibasic acid and/or salt thereof having a difference between the first acid dissociation index (hereinafter, abbreviated as first acid dissociation index) and the second acid dissociation index (hereinafter, abbreviated as second acid dissociation index or pK2) of 1.7 or more at 25°C.
Cycloadditions. XVI. Addition of 1,1-dichloro-2,2-difluoroethylene and the stereoisomeric 1,2-dichloro-1,2-difluoroethylenes to trans-cyclooctene
作者:Robert. Wheland、Paul D. Bartlett
DOI:10.1021/ja00793a028
日期:1973.6
Ni0-induzierte Herstellung cyclischer C8-Carbonsäuren aus Cyclooctenen und Kohlendioxid
作者:Heinz Hoberg、Alfredo Ballesteros
DOI:10.1016/0022-328x(91)86033-m
日期:1991.7
Cyclooctene and 1,5-cyclooctadiene are shown to be ideal substrates for coupling reactions with CO2 on (Lig)Nickel(0)-systems. By variation of the ligands and addition of promoters, it is possible by successive application of carbon dioxide, carbon monoxide, FeCl3 or (CH-3)3N --> O to prepare highly selectivity series of cyclooctane- and cyclooctenecarboxylic acids.