A green and efficient practical approach is developed for the synthesis of b-enaminones using melamine-formaldehyde resin supported H+ (MFRH) as a mild and inexpensive catalyst in solvent-free media. The present method was performed by combining low cost and readily available amines, 1,3-dicarbonyls and melamine-formaldehyde resin supported H+ (MFRH) as a catalyst. This method is applicable to both cyclic and acyclic ketones with aromatic and aliphatic amines, and provides several advantages such as environmental friendliness, low cost, good yields and simple workup procedure.
一种绿色高效的实用方法被开发用于合成β-烯胺酮,采用
甲醛-
三聚氰胺树脂支持的H+(MFRH)作为温和且廉价的催化剂,且在无溶剂条件下进行。该方法结合了低成本和易于获取的胺、1,3-二酮和作为催化剂的
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三聚氰胺树脂支持H+(MFRH)。此方法适用于芳香和脂肪胺的环状和非环状酮,并提供了诸多优点,如环境友好、成本低、产率良好及操作简便。