An Efficient and Practical Method for Highly Chemoselective Hydrogenation of Nitrobenzylamines to Aminobenzylamine Hydrochlorides
β Scribed by Chuanjie Cheng; Xinyan Wang; Lixin Xing; Bo Liu; Rui Zhu; Yuefei Hu
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 113 KB
- Volume
- 349
- Category
- Article
- ISSN
- 1615-4150
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β¦ Synopsis
Abstract
Aqueous hydrochloric acid proved to be a very reliable modulator for adjusting the reactivity of palladium on carbon. Thus an efficient and practical method for the highly chemoselective hydrogenation of N,Nβdialkylnitrobenzylamines to aminoβN,Nβdialkylbenzylamine hydrochlorides was established. The method features convenient performance, easy workβup and high efficiency.
π SIMILAR VOLUMES
The reaction of alkylidenecyclopropanes with HCl or with HBr proceeds very smoothly at 120Β°C to produce the corresponding homoallylic halides stereoselectively in good to excellent yields. For example, the reaction of (1-phenylbenzylidene)cyclopropane, (1-butylpentylidene)cyclopropane and octylidene
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