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。
<scp>Cobalt‐Catalyzed</scp>
C—H Allylation of Arenes with Allylic Amines
作者:Rui Yan、Hang Yu、Zhong‐Xia Wang
DOI:10.1002/cjoc.202000680
日期:2021.5
catalyzes pyridyl‐directedC—H allylation of arenes with allylic amines in the presence of AgOAc and CF3COOAg. The reaction features ortho‐position monoallylation of 2‐pyridylarenes, giving the allylated arenes in moderate to high yields. A range of functional groups including OMe, Me, Ph, F, Cl, Br, CF3, C(O)Me, COOEt, and COOH groups are tolerated. Pyrimidyl‐directedC—H allylation of arenes were also performed
Reductive alkylation of nitrobenzene promoted by zinc and tin in protic solvents
作者:Lothar W. Bieber、Rosenildo C. da Costa、Margarete F. da Silva
DOI:10.1016/s0040-4039(00)00529-3
日期:2000.6
Barbier-type organometallic reactions of nitrobenzene with organic halides in protic solvents produce directly N,N-dialkylanilines. With allyl bromide, best yields are obtained using zinc in an aqueous monobasic sodium phosphate solution in the presence of cuprous iodide or tin in methanol. The latter procedure is also successful in the case of benzyl bromide and primary alkyl iodides. Control experiments