Thiophene-Fused Heteroaromatic Systems Enabled by Internal Oxidant-Induced Cascade Bis-Heteroannulation
作者:Huawen Huang、Zhenhua Xu、Xiaochen Ji、Bin Li、Guo-Jun Deng
DOI:10.1021/acs.orglett.8b02049
日期:2018.8.17
concise access to thiophene-fused polycyclic π-conjugated systems is described. Methyl aromatic ketoxime acetates, aromatic aldehydes, and elemental sulfur are efficiently assembled in a facile copper-catalytic system through a novel cascade bis-heteroannulation to afford a fused thieno[3,2-d]thiazole motif. The robust nature of this reaction system is reflected by the remarkable simplicity-to-complexity
描述了对噻吩稠合的多环π-共轭体系的简明访问。甲基芳族酮肟肟乙酸酯,芳族醛和元素硫可通过新颖的级联双-杂环化反应在便捷的铜催化系统中高效组装,从而得到稠合的噻吩并[3,2- d ]噻唑基序。该反应系统的鲁棒性体现在一锅操作中从简单到复杂的转换,高产量的克级合成以及在高性能光电材料合成中的潜在应用。