An Easy Microwave-Assisted Synthesis of Sulfonamides Directly from Sulfonic Acids
摘要:
An easy and handy synthesis of sulfonamides directly from sulfonic acids or its sodium salts is reported. The reaction is performed under microwave irradiation, has shown a good functional group tolerance, and is high yielding.
Selective Late‐Stage Sulfonyl Chloride Formation from Sulfonamides Enabled by Pyry‐BF
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作者:Alejandro Gómez‐Palomino、Josep Cornella
DOI:10.1002/anie.201910895
日期:2019.12.9
Reported here is a simple and practical functionalization of primary sulfonamides, by means of a pyrylium salt (Pyry-BF4 ), with nucleophiles. This simple reagent activates the poorly nucleophilic NH2 group in a sulfonamide, enabling the formation of one of the best electrophiles in organic synthesis: a sulfonyl chloride. Because of the variety of primary sulfonamides in pharmaceutical contexts, special
The reaction of mercaptans with dimethyldioxirane. A facile synthesis of alkanesulfinic acids.
作者:D. Gu、David N. Harpp
DOI:10.1016/s0040-4039(00)60059-x
日期:1993.1
Dimethyldioxirae oxidizes aliphatic thiols to sulfinic acids in very good yield. Benzylic and aromatic thiols give a variety of other oxidation products using DMD.
Novel GlyT1 inhibitor chemotypes by scaffold hopping. Part 1: Development of a potent and CNS penetrant [3.1.0]-based lead
作者:Carrie K. Jones、Douglas J. Sheffler、Richard Williams、Sataya B. Jadhav、Andrew S. Felts、Ryan D. Morrison、Colleen M. Niswender、J. Scott Daniels、P. Jeffrey Conn、Craig W. Lindsley
DOI:10.1016/j.bmcl.2014.01.013
日期:2014.2
This Letter describes the development and SAR of a novel series of GlyT1 inhibitors derived from a scaffold hopping approach that provided a robust intellectual property position, in lieu of a traditional, expensive HTS campaign. Members within this new [3.1.0]-based series displayed excellent GlyT1 potency, selectivity, free fraction, CNS penetration and efficacy in a preclinical model of schizophrenia (prepulse inhibition). (C) 2014 Elsevier Ltd. All rights reserved.
Birch; Norris, Journal of the Chemical Society, 1925, vol. 127, p. 905