Synthesis of Highly Substituted Biaryls by the Construction of a Benzene Ring via<i>In Situ</i>Formed Acetals
作者:Chandrahas Tarigopula、Seetharaman Manojveer、Rengarajan Balamurugan
DOI:10.1021/acs.joc.1c01277
日期:2021.9.3
an interesting method for the construction of a benzene ring using propargylic alcohols and 1,3-dicarbonyls, which involves three new C–C bond formations via cascade alkylation, formylation, annulation, and aromatization to make substituted biaryls. This one-pot Brønsted acid-promoted protocol utilizes the unique reactivity of the acetal formed under the reaction conditions. Alkynyl methyl ketones could
在此,我们提出了一种使用炔丙醇和 1,3-二羰基构建苯环的有趣方法,该方法涉及通过级联烷基化、甲酰化、环化和芳构化形成三个新的 C-C 键以制备取代的联芳基。这种一锅 Brønsted 酸促进方案利用了在反应条件下形成的乙缩醛的独特反应性。可以使用炔基甲基酮代替 1,3-二羰基,因为它们在反应条件下通过水合转化为 1,3-二羰基。