Gold-Catalyzed Cascade Annulations of 2-(Ynol)aryl Aldehydes: Facile Synthesis of Benzochromanes and Benzobicyclo[<i>n</i>.3.1]acetals
作者:Le-Ping Liu、Gerald B. Hammond
DOI:10.1021/ol101985d
日期:2010.10.15
Gold-catalyzed reactions of 2-(ynol)aryl aldehydes were investigated. Benzochromanes were obtained from the reaction when AuCl3 was employed as the catalyst, whereas benzobicyclo[n.3.1]acetals were produced when triazole−gold was employed as the catalyst. Plausible mechanisms are discussed.
研究了金催化的2-(ynol)芳基醛的反应。当使用AuCl 3作为催化剂时,从反应中获得苯并二氢吡喃,而当使用三唑-金作为催化剂时,则生成苯并双环[ n .3.1]缩醛。讨论了可能的机制。