作者:Jeffrey T. Kuethe、Daniel L. Comins
DOI:10.1021/jo049943v
日期:2004.4.1
Certain indolyl and pyrrolyl Grignard reagents add to 1-acyl salts of 4-methoxy-3-(triisopropylsilyl)pyridine to give the corresponding 1-acyl-2-heteroaryl-2,3-dihydro-4-pyridones in good to high yield. When the 1-acyl group contained a chiral auxiliary, (±)-trans-2-(α-cumyl)cyclohexyloxy, addition of the indolyl Grignards resulted in a separable mixture of diastereomeric 2,3-dihydro-4-pyridones.
某些吲哚基和吡咯基格利雅试剂加入4-甲氧基-3-(三异丙基甲硅烷基)吡啶的1-酰基盐中,从而以良好或高收率得到相应的1-酰基-2-杂芳基-2,3-二氢-4-吡啶酮。当1-酰基包含手性助剂,(±)-反式-2-(α-枯基)环己氧基时,吲哚基格氏试剂的加入导致可分离的非对映异构体2,3-二氢-4-吡啶酮混合物。