A Versatile and Efficient Synthesis of 2-Alkyl and 2-Aryl-6-alkyl-2,3-dihydro-1<i>H</i>-pyridin-4-ones
作者:Patrick Dallemagne、Nicolas Leflemme、Sylvain Rault
DOI:10.1055/s-2002-33648
日期:——
A versatile and efficient method for the preparation of 2-alkyl and 2-aryl-6-alkyl-2,3-dihydro-1H-pyridin-4-ones is described. The sequence involved the condensation of β-amino acids and t-butyl ketoester to give enaminoesters whose intramolecular cyclisation followed by an hydrolysis step afforded the expected products.
描述了一种制备 2-烷基和 2-芳基-6-烷基-2,3-二氢-1H-吡啶-4-酮的通用且有效的方法。该序列涉及β-氨基酸和叔丁基酮酯的缩合,得到烯胺酯,其分子内环化随后的水解步骤提供了预期的产物。