使用R 3 MgLi类型的菱镁酸酯作为亲核试剂,可高效,短时间地合成顺式稠合的茚并[ 2,1- b ]-和茚并[1,2 - c ]吡啶-2-酮,从2-吡啶酮开始描述了在优化条件下由原位生成的苯并介导的去质子化剂。按照已开发的方案,获得了罕见的C4a-芳基取代的茚并[2,1- b ]吡啶酮,类似于蒿胺的核心。还描述了直接从2-吡啶酮提供一锅合成的方案。
使用R 3 MgLi类型的菱镁酸酯作为亲核试剂,可高效,短时间地合成顺式稠合的茚并[ 2,1- b ]-和茚并[1,2 - c ]吡啶-2-酮,从2-吡啶酮开始描述了在优化条件下由原位生成的苯并介导的去质子化剂。按照已开发的方案,获得了罕见的C4a-芳基取代的茚并[2,1- b ]吡啶酮,类似于蒿胺的核心。还描述了直接从2-吡啶酮提供一锅合成的方案。
A manganese-mediated dehydrogenative direct alkylation of 2-pyridones with diethyl malonates has been developed. A similar reaction system is applicable to the direct arylation with arylboronic acids. These manganese-based reactions occur regioselectively at the C3 position of the 2-pyridones. The observed high C3 regioselectivity can complement precedented C-H functionalization protocols of the 2-pyridones in view of the site selectivity.