Simple two-step synthesis of 2,4-disubstituted pyrroles and 3,5-disubstituted pyrrole-2-carbonitriles from enones
作者:Murat Kucukdisli、Dorota Ferenc、Marcel Heinz、Christine Wiebe、Till Opatz
DOI:10.3762/bjoc.10.44
日期:——
The cyclocondensation of enones with aminoacetonitrile furnishes 3,4-dihydro-2H-pyrrole-2-carbonitriles which can be readily converted to 2,4-disubstituted pyrroles by microwave-induced dehydrocyanation. Alternatively, oxidation of the intermediates produces 3,5-disubstituted pyrrole-2-carbonitriles.
烯酮与氨基乙腈的环缩合反应得到 3,4-dihydro-2H-pyrrole-2-carbonitriles,可通过微波诱导脱氢氰化很容易地将其转化为 2,4-二取代的吡咯。或者,中间体的氧化产生 3,5-二取代的吡咯-2-腈。