1-Benzenesulfonyl- and 1-p-toluenesulfonyl-3-methylimidazolium triflates: efficient reagents for the preparation of arylsulfonamides and arylsulfonates
The present invention relates to modulators of muscarinic receptors. The present invention also provides compositions comprising such modulators, and methods therewith for treating muscarinic receptor mediated diseases.
nitrenium (NHN) salts, the analogues of N-heterocyclic carbenes, have attracted considerable interest. However, relatively little is known about their catalytic ability beyond their Lewis acid catalysis. Herein, we describe that NHNs can serve as catalytic electron acceptors for charge transfer complex photoactivations. We showcase that, under blue light irradiation, the NHN salts could catalyze the
Taipale, Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1924, vol. 54, p. 652
作者:Taipale
DOI:——
日期:——
An Easy Microwave-Assisted Synthesis of Sulfonamides Directly from Sulfonic Acids
作者:Lidia De Luca、Giampaolo Giacomelli
DOI:10.1021/jo800424g
日期:2008.5.1
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.
Phase-Transfer-Catalysed<i>N</i>-Alkylation of Carboxamides and Sulfonamides