Expedient synthesis of 3-hydroxyisoquinolines and 2-hydroxy-1,4-naphthoquinones via one-pot aryne acyl-alkylation/condensation
作者:Kevin M. Allan、Boram D. Hong、Brian M. Stoltz
DOI:10.1039/b913336d
日期:——
A convenient method is disclosed for the synthesis of both 3-hydroxyisoquinolines and 2-hydroxy-1,4-naphthoquinones from β-ketoesters using a one-pot aryne acyl-alkylation/condensation procedure. When performed in conjunction with a one-step method for the synthesis of the β-ketoester substrates, this method provides a new route to these polyaromatic structures in only two steps from commercially available carboxylic acid starting materials. The utility of this approach is demonstrated in the synthesis of the atropisomeric P,N-ligand, QUINAP.
公开了一种方便的方法,可以通过一锅法将β-酮酯合成3-羟基异喹啉和2-羟基-1,4-萘醌,采用芳烯酰基-烷基化/缩合步骤。当与一步法合成β-酮酯底物结合进行时,该方法仅需从商业可得的羧酸起始材料出发,通过两个步骤即可提供这些多芳香结构的新路线。该方法的实用性在于合成了具 atropisomer 的 P,N-配体 QUINAP。