73644-87-8Relevant articles and documents
Lewis Base-Boryl Radicals Enabled the Desulfurizative Reduction and Annulation of Thioamides
Yu, You-Jie,Zhang, Feng-Lian,Cheng, Jie,Hei, Jing-Hao,Deng, Wei-Ting,Wang, Yi-Feng
supporting information, p. 24 - 27 (2018/01/17)
A new protocol for radical transformations of thioamides promoted by Lewis base-boryl radicals is reported. The desulfurizative reduction to access organic amines was enabled utilizing 4-dimethylaminopyridine-BH3 as the boryl radical precursor and PhSH as the polarity reversal catalyst. Alternatively, the chain process for unsaturated thioamides was switched to an annulation reaction using N-heterocyclic carbene-BH3 as the boryl radical precursor and sterically bulky Ph3CSH as the catalyst, allowing for the construction of N-heterocyclic and carbocyclic skeletons.
N-Acyl-N-(4-chlorophenyl)-4-nitrobenzenesulfonamides: Highly selective and efficient reagents for acylation of amines in water
Ebrahimi, Sara,Saiadi, Safoura,Dakhilpour, Simin,Mirsattari, Seyed Nezamoddin,Massah, Ahmad Reza
, p. 95 - 104 (2016/04/26)
A variety of N-acyl-N-(4-chlorophenyl)-4-nitrobenzenesulfonamides (1a-e) were synthesized in one pot from 4-chloroaniline under solvent-free conditions and have been developed as chemoselective N-acylation reagents. Selective protection of primary amines in the presence of secondary amines, acylation of aliphatic amines in the presence of aryl amines, and monofunctionalization of primary-secondary diamines as well as selective N-acylation of amino alcohols using these reagents are described. All of the acylation reactions were carried out in water as a green solvent. High stability and easy preparation of these acylating reagents are other advantages of this method.
Development of new linkers for the formation of aliphatic C-H bonds on polymeric supports
Jung, Kyung Woon,Zhao, Xu-Yang,Janda, Kim D.
, p. 6645 - 6652 (2007/10/03)
Two polymeric linkers, 8 and 11, were prepared in high yields. Attachment of an alkyl group to these linkers was facile, and their cleavage from the MeO-PEG polymer support was accomplished by desulfurization using Raney nickel to yield the new carbon-hydrogen bond product 6. The protocol reported herein allows efficient preparation of new polymeric linkers as well as their possible application to combinatorial libraries.