Access to Fused Pyrroles from Cyclic 1,3-Dienyl Boronic Esters and Arylnitroso Compounds
作者:Benjamin François、Ludovic Eberlin、Fabienne Berrée、Andrew Whiting、Bertrand Carboni
DOI:10.1021/acs.joc.9b03214
日期:2020.4.17
Complimentary to classical hydroboration and boron-Wittig reactions, a new, efficient access to cyclic 1,3-dienyl boronic esters has been developed via diene or triene metathesis. Subsequently, fused pyrroles were synthesized with a broad substrate scope from the reaction of cyclic 1,3-dienyl boronic esters with arylnitroso compounds using a one-pot hetero-Diels–Alder/ring contraction sequence.
除经典的硼氢化反应和硼-维蒂希反应外,还通过二烯或三烯复分解反应开发了一种新的,高效的环状1,3-二烯基硼酸酯。随后,使用一锅杂Diels-Alder /环收缩序列,通过环状1,3-二烯基硼酸酯与芳基亚硝基化合物的反应,合成了具有较宽底物范围的稠合吡咯。