INDIUM MEDIATED ALLYLATION OF NITRO GROUP ON NITROBENZENE DERIVATIVES IN AQUEOUS MEDIA
作者:Kyung Ho Kang、Kyung Il Choi、Hun Yeong Koh、Youseung Kim、Bong Young Chung、Yong Seo Cho
DOI:10.1081/scc-100104827
日期:2001.1
Indium mediatedallylation of nitro group was first achieved with four allylbromides in aqueous media. Nitro- benzenes bearing 3- and/or 4-substituent(s) gave mainly N,N-diallylated (I or I′) and/or N,O-diallylated (II) products by Method A. Allylation of nitrobenzenes having 2- (and 5-) substituent(s) could be achieved only with crotyl bromide by Method B.
铟介导的硝基烯丙基化首先在水性介质中用四种烯丙基溴实现。带有 3- 和/或 4- 取代基的硝基苯通过方法 A 主要得到 N,N-二烯丙基化(I 或 I')和/或 N,O-二烯丙基化 (II) 产物。 具有 2- 取代基的硝基苯的烯丙基化(和 5-) 取代基只能通过方法 B 使用巴豆基溴来实现。
Platinum-Catalyzed Direct Amination of Allylic Alcohols under Mild Conditions: Ligand and Microwave Effects, Substrate Scope, and Mechanistic Study
mechanistic investigations, including (1)H and (31)P(1)H} NMR studies; isolation and characterization of several catalytic intermediates, Pt(xantphos)Cl(2), Pt(eta(2)-C(3)H(5)OH)(xantphos), etc; confirmation of the structure of [Pt(eta(3)-allyl)(xantphos)]OTf by X-ray crystallographic analysis; and crossover experiments, suggested that formation of the pi-allylplatinum complex through the elimination of water
Reactions of Tertiary Allylic Amines and Dichlorocarbenes
作者:Meili Wang、Fenfen Xiao、Yinjuan Bai、Xiangdong Hu
DOI:10.1080/00397911.2015.1075218
日期:2015.10.2
Abstract In this article, a study on reactions of tertiary allylic amines and dichlorocarbenes had been described. Tertiary allylic amines could result from an interesting de-N-allylation/formylation reaction under the treatment of dichlorocarbenes. Notably, amines containing steric substituents or electron-deficient aromatic substituents on the nitrogen will go through cyclopropanations of the carbon–carbon
Gold(I)-Catalyzed Intermolecular Hydroamination of Allenes with Arylamines
作者:Ross Widenhoefer、Alethea Duncan
DOI:10.1055/s-0029-1218555
日期:2010.2
A mixture of (3)AuCl [3 = P(t-Bu)(2)o-biphenyl] and AgOTf catalyzes the intermolecularhydroamination of monosubstituted and 1,1- and 1,3-disubstituted allenes with primary and secondary arylamines.
A cationic (CAAC)gold(I) complex promotes the addition of all types of nontertiary amines to a variety of allenes, affording allylic amines in good to excellent yields; the amino fragment always adds to the less substituted terminus of the CCC skeleton.