We present the details of an organophosphine-catalyzed Morita–Baylis–Hillman-type reaction of activated alkynes. The outcome is an intramolecular hydroacylation of α,β-ynones leading to the formation of 1,3-cyclopenta-, cyclohepta-, and cyclooctadione-fused arenes and heteroarenes. In addition, during the course of the investigation, a phosphine-catalyzed intramolecular aldol reaction of keto-ynones
                                    我们介绍了有机膦催化的活化
炔烃的Morita-Baylis-Hillman型反应的细节。结果是α,β-炔酮的分子内加氢酰化作用,导致形成1,3-环戊基,环庚和环辛二酮融合的
芳烃和杂
芳烃。此外,在研究过程中,发现了膦通过δ'[C(sp 3)-H]-官能化进行膦酮催化的酮-内酯分子内羟醛反应,并产生了一个新的由ω'[C还没有发现(sp 3)-H]-官能化的α,β-炔酮。彻底阐明了控制这些过程的机制。