One-pot synthesis of sulfonamides from methyl sulfinates using ultrasound
摘要:
Room temperature ultrasonic irradiation of neat mixtures of methyl sulfinates and primary or secondary amines (1.5 equiv) produced sulfinamides, which on m-CPBA oxidation (in dichloromethane) were converted into the corresponding sulfonamides. The two steps can be accomplished in one pot, in good overall yields, when using secondary amines, but primary amines give better sulfonamide yields when the peracid oxidation is effected on the purified sulfinamide. This constitutes a mild, efficient, and potentially scalable route to sulfonamides, which obviates the use of water sensitive, often lachrymatory sulfonyl chlorides and large reagent excesses. (C) 2011 Elsevier Ltd. All rights reserved.
Expedient Synthesis of Sulfinamides from Sulfonyl Chlorides
作者:Michael Harmata、Pinguan Zheng、Chaofeng Huang、Maria G. Gomes、Weijiang Ying、Kanok-On Ranyanil、Gayatri Balan、Nathan L. Calkins
DOI:10.1021/jo062296i
日期:2007.1.1
Sulfinamides were synthesized fromsulfonylchlorides using a procedure involving in situ reduction of sulfonylchlorides. The reaction is broad in scope and easy to perform.
Iron/copper co-catalyzed highly selective arylation of sulfinamides with aryl iodides
作者:Shuanglin Qin、Yunhao Luo、Yue Sun、Le Tian、Shende Jiang、Jun yan、Guang Yang
DOI:10.1016/j.tetlet.2019.151167
日期:2019.10
efficient Iron(III) and Copper(II) co-catalyst without ligands catalyzed arylation of sulfinamides with aryl iodide was primarily reported. In brief, in the presence of Fe(NO3)3·9H2O, CuO and K3PO4, the highly selective C–N cross coupling of several sulfinamides and aryl iodides was achieved in high chemical yield, while the aryl chlorides and bromides could not yield coupling products. It is noteworthy
在本研究中,主要报道了廉价但有效的铁(III)和铜(II)助催化剂,没有配体催化亚磺酰胺与碘化芳基的芳基化反应。简而言之,在Fe(NO 3)3 ·9H 2 O,CuO和K 3 PO 4的存在下,以高化学收率实现了几种亚磺酰胺和碘代芳烃的高选择性C–N交叉偶联,而芳基氯化物溴化物不能产生偶联产物。值得注意的是,通过手性芳基化叔-butanesulfinamide与芳基碘化物,Ñ -芳基叔-丁亚磺酰胺即使在克级的情况下也不会外消旋地提供。可能的机理是,活性Fe(III)物种可能会大大促进铜催化剂和芳基碘化物之间的这种氧化加成过程。此外,使用这种合成方法,为N-苯基亚磺酰胺的衍生物开发了一种简便而有效的途径,这可能有助于开发新的药物分子和原料化学物质。
Amides Obtained from Benzenesulfinic Acid
作者:L. Chas. Raiford、Stewart E. Hazlet
DOI:10.1021/ja01314a038
日期:1935.11
Evidence for Hypervalent Intermediates in Acid Hydrolysis of Sulfinamide. 18O Exchange and a Break in pH-Rate Profile
作者:Tadashi Okuyama、Jong Pal Lee、Kazunobu Ohnishi
DOI:10.1021/ja00093a077
日期:1994.7
Preparation and reactions of sulfonimidoyl fluorides
作者:Carl R. Johnson、Kostaki G. Bis、Jose H. Cantillo、Nicholas A. Meanwell、Michael F. D. Reinhard、James R. Zeller、Glenn P. Vonk