芳基萘基酮与琥珀酸二乙酯缩合,生成立体异构体半酯2a-2d,这些酯经一系列反应生成1-苯基菲和1,1'-联萘基衍生物。(E)-3-乙氧羰基-4-(4-甲氧基萘-1-基)-4-芳基丁-3-烯酸(2b–d)最终转化为相应的萘并[1,2- c ]芴酮(9)。产品的结构由IR建立。和紫外线。光谱学。通过色谱和UV确定取代基对(E)-和(Z)-半酯2的相对比例的影响。光谱学。
Synthesis of Naphthalene Derivatives from<i>ortho</i>-Alkynylacetophenone Derivatives via Tandem<i>in Situ</i>Incorporation of Acetal and Intramolecular Heteroalkyne Metathesis/Annulation
作者:Seetharaman Manojveer、Rengarajan Balamurugan
DOI:10.1021/ol5003835
日期:2014.3.21
An interesting domino reaction for the synthesis of substituted naphthyl ketones has been developed using readily accessible starting materials. This domino reaction proceeds via in situ incorporation of an acetal followed by intramolecular heteroalkyne metathesis/annulation in an ortho-alkynylacetophenone derivative. A deuterium incorporation experiment has been carried out to understand the mechanism