A new and efficient protocol to synthesize substituted benzo[b]carbazole derivatives has been demonstrated involving iron-catalyzed domino isomerization/cyclodehydration sequences from substituted 2-[(indoline-3-ylidene)(methyl)]benzaldehyde derivatives. The substrates could be easily made via Pd-catalyzed domino Heck–Suzuki coupling from 2-bromo-N-propargylanilide derivatives in high yields. Notably
已经证明了合成取代的苯并[ b ]
咔唑衍
生物的新的有效方案,该方案包括由取代的2-[(二氢
吲哚-3-亚甲基)(甲基)]
苯甲醛衍
生物进行
铁催化的多米诺骨化异构/环脱
水序列。通过Pd催化的多米诺骨牌Heck-Suzuki偶联可以轻松地以高产率从2-
溴-N-炔丙基
苯胺衍
生物制备底物。值得注意的是,通过合成多环
苯并呋喃衍
生物进一步例证了该两阶段多米诺策略的通用性和效率。