我们在此介绍一种由无毒无机还原剂偏亚硫酸氢钠促进的双(2-氨基苯基)二硒化物与不同芳基醛的反应合成几种2-芳基-1,3-苯并硒唑的一般简便方法。 Na 2 S 2 O 5)在120°C下的DMSO中。这种有效的方法以高产率提供了相应的2-芳基取代的1,3-苯并硒基唑,并容许醛的芳基环上的一系列取代基。聚焦微波辐射的使用将反应时间从48 h大大减少到2 h。
Develotte, Annales de Chimie (Cachan, France), 1950, vol. <2> 5, p. 215,237
作者:Develotte
DOI:——
日期:——
Synthesis of 2 H -1,4-benzothiazin-3(4 H )-ones and 2 H -1,4-benzoselenazin-3(4 H )-ones with the aid of samarium(II) iodide
作者:Weihui Zhong、Yongmin Zhang
DOI:10.1016/s0040-4039(01)00360-4
日期:2001.4
Bis(o-nitrophenyl) disulfides or diselenides were easy to reduce by samarium(II) iodide to produce the active intermediates 2 in situ, which readily react with alpha -halocarboxylic derivatives to yield the corresponding products 2H-1,4-benzothiazin-3(4H)-ones and 2H-1,4-benzoselenazin-3(4H)-ones, respectively, in moderate to high yields under mild conditions. (C) 2001 Elsevier Science Ltd. All rights reserved.
Clark, Journal of the Chemical Society, 1928, p. 2318
作者:Clark
DOI:——
日期:——
Clark, Journal of the Chemical Society, 1927, p. 2806