Rh(III)-Catalyzed [3 + 3] Annulation Reaction of Cyclopropenones and Sulfoxonium Ylides toward Trisubstituted 2-Pyrones
作者:Peng Zhou、Wei-Tao Yang、Anis Ur Rahman、Guigen Li、Bo Jiang
DOI:10.1021/acs.joc.9b02253
日期:2020.1.17
A new Rh(III)-catalyzed [3 + 3] annulation reaction between cyclopropenones and β-ketosulfoxonium ylides has been reported, enabling metal carbene insertion to access a wide range of trisubstituted 2-pyrones with moderate to excellent yields via C-C single-bond cleavage, in which sulfoxonium ylides serve as potential safe precursors of metal carbenes. This reaction occurred under redox-neutral conditions
据报道,新的Rh(III)催化的环戊烯酮和β-酮基硫代肟鎓烷基化物之间的[3 + 3]环化反应使金属卡宾插入可通过CC单键以中等到极好的收率获得各种各样的三取代2-吡喃酮。裂解,其中亚硫酸sulf盐作为金属卡宾的潜在安全前体。该反应在具有广泛底物范围的氧化还原中性条件下发生。