作者:W. Russell Bowman、Anthony J. Fletcher、Jan M. Pedersen、Peter J. Lovell、Mark R.J. Elsegood、Elena Hernández López、Vickie McKee、Graeme B.S. Potts
DOI:10.1016/j.tet.2006.10.030
日期:2007.1
Amides have been successfully used as precursors of imidoyl radicals for radical cyclisation. The amides have been converted to imidoyl selanides via reaction with phosgene to yield imidoyl chlorides followed by reaction with potassium phenylselanide. Imidoyl selanides were reacted with tributyltin hydride (Bu3SnH) as the radical mediator with triethylborane or AIBN as initiators to yield imidoyl radicals
酰胺已成功地用作亚胺基自由基的前体,用于自由基环化。酰胺已通过与光气反应生成亚氨酰氯,然后与苯硒化钾反应,已转化为亚氨基酰硒化物。亚胺基硒化物与氢化三丁基锡(Bu 3 SnH)作为自由基介体反应,三乙基硼烷或AIBN作为引发剂,生成亚胺基自由基用于环化反应。酰亚胺基已被环化到烯烃上以产生2,3-取代的吲哚和-喹啉,并且还被吡咯和吲哚上以产生双环和三环杂芳烃。