Modular Synthesis of Stereodefined Benzocyclobutene Derivatives via Sequential Cu- and Pd-Catalysis
作者:Fabien J. T. Talbot、Shibo Zhang、Bishnupada Satpathi、Gareth P. Howell、Gregory J. P. Perry、Giacomo E. M. Crisenza、David J. Procter
DOI:10.1021/acscatal.1c04496
日期:2021.12.3
materials and medicinal chemistry, although general routes for their provision remain underexplored. A modular, divergent, and stereoselective Cu- and Pd-catalyzed assembly/cyclization sequence allows the synthesis of densely functionalized BCBs, from readily accessible imine, allene, and diboron precursors. Preliminary results have identified enantioselective conditions for our protocol and highlighted,
苯并环丁烯 (BCB) 对材料和药物化学的兴趣越来越大,尽管其提供的一般途径仍未得到充分探索。模块化、发散和立体选择性的 Cu 和 Pd 催化的组装/环化序列允许从容易获得的亚胺、丙二烯和二硼前体合成密集功能化的 BCB。初步结果已经确定了我们协议的对映选择性条件,并强调了,例如,它适用于合成含 BCB 的肽。通过实验条件的简单变化或底物修饰,我们的策略扩展到提供二氢吲哚和喹啉衍生物,适合进一步操作。