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。
A general approach to substituted diphenyldiazenes
作者:Toni A. Lutz、Patrick Spanner、Klaus T. Wanner
DOI:10.1016/j.tet.2016.02.011
日期:2016.3
A general and practical synthetic method for the construction of unsymmetrically substituted diphenyldiazenes based on classical azo coupling reaction has been developed. A key feature of this method is the use of N,N-diallyl protected aniline derivatives as coupling components. The N,N-diallyl moiety of the coupling component warrants sufficient reactivity and allows to avoid formation of constitutional
Synthesis of Pyrrole Derivatives from Diallylamines by One-Pot Tandem Ring-Closing Metathesis and Metal-Catalyzed Oxidative Dehydrogenation
作者:Weiqiang Chen、Jianhui Wang
DOI:10.1021/om400046r
日期:2013.3.25
A series of aryl-substituted pyrrole derivatives was synthesized from diallylamines through a ruthenium carbene catalyzed ring-closingmetathesis reaction and in situ oxidative dehydrogenation reaction catalyzed by FeCl3·6H2O or CuCl2·2H2O in the presence of O2. The reaction was mild, simple, and convenient. An oxygen atmosphere played a critical role in obtaining high conversion of substituted pyrroles