Molecular iodine-catalysed oxidative CO–C(alkyl) bond cleavage of aryl/heteroaryl alkyl ketones: an efficient strategy to access fused polyheterocycles
作者:Geeta Sai Mani、Ayanampudi Venkata Subba Rao、Yellaiah Tangella、Satish Sunkari、Faria Sultana、Hari Krishna Namballa、Nagula Shankaraiah、Ahmed Kamal
DOI:10.1039/c8nj03417f
日期:——
An efficient molecular iodine-catalysed one-pot strategy has been accomplished for the construction of various fused heterocycles such as pyridoimidazoles, pyrrolo[1,2-a]quinoxalines and imidazobenzothiazoles under metal and oxidant free conditions. Gratifyingly, this method allows the sequential formation of C–N and C–C bonds with concomitant CO–C(alkyl) bond cleavage. The key features of this protocol
在无金属和无氧化剂条件下,已经完成了一种有效的分子碘催化一锅策略,用于构建各种稠合杂环,如吡啶并咪唑,吡咯并[1,2- a ]喹喔啉和咪唑并苯并噻唑。令人欣慰的是,这种方法可以依次形成C–N和C–C键,并伴随有CO–C(烷基)键断裂。该协议的关键特征是广泛的底物范围,操作简便,良率适中和无金属条件,这使该协议便于生成稠合多杂环文库。