A simple and efficient methodology toward the synthesis of highly molecularly diverse 2,6-disubstituted 3,4-dihydropyrimidin-4(3H)-ones of type 3 has been developed. The methodology is based on a selective O-alkylation reaction with i-PrOH under Mitsunobu conditions followed by a nucleophilic heteroaromatic ipso-substitution of sulfones 20 and subsequent acidic hydrolysis of the isopropoxy group.
我们开发了一种简单高效的方法,用于合成分子高度多样化的 2,6-二取代 3,4-二氢
嘧啶-4(3H)-酮 3 型。该方法的基础是在 Mitsunobu 条件下用 i-PrOH 进行选择性 O- 烷基化反应,然后对砜 20 进行亲核的杂芳香族异取代反应,随后对异丙氧基进行酸性
水解。