A fast procedure for the reduction of azides and nitro compounds based on the reducing ability of Sn(SR)3-species
作者:Marti Bartra、Pedro Romea、Fèlix Urpí、Jaume Vilarrasa
DOI:10.1016/s0040-4020(01)85439-9
日期:1990.1
Tin(II) complexes prepared by treatment of SnCl2or Sn(SR)2 with appropriate amounts of RSH and Et3N appear to be the best reducing agents for azides (to amines) reported so far. These tin(II) complexes also reduce primary and secondary aliphatic nitro compounds to oximes, usually within minutes at r.t. or hours in cold, and tertiary aliphatic as well as aromatic nitro compounds to afford the corresponding
通过用适量的RSH和Et 3 N处理SnCl 2或Sn(SR)2制备的锡(II)络合物似乎是迄今为止报道的叠氮化物(对胺类)的最佳还原剂。这些锡(II)配合物还可以将伯和仲脂肪族硝基化合物还原为肟,通常在室温下在数分钟之内或数小时之内即可还原成肟,而叔脂肪族以及芳香族硝基化合物也可以还原为相应的羟胺。通常,叠氮化物比硝基取代基反应更快,而羰基,亚砜,砜,腈和酯在相同条件下实际上是不反应的。还阐明了Sn(SPh)3-与叠氮化物和硝基化合物反应的一些机理细节。