??-Disubstituted Itaconic Acids. Part 1. TheStobbe condensation of 1-arylnaphthyl ketones with diethyl succinate
作者:Victorine B. Baghos、Farid H. Nasr、Munir Gindy
DOI:10.1002/hlca.19790620114
日期:1979.1.24
Arylnaphthyl ketones condense with diethyl succinate yielding the stereoisomeric half-esters 2a–2d which were subjected to a series of reactions leading to 1-phenylphenanthrene and 1,1′-binaphthyl derivatives. (E)-3-Ethoxycarbonyl-4-(4-methoxynaphth-1-yl)-4-arylbut-3-enoic acids (2b–d) were converted finally into the corresponding naphtho[1,2-c]fluorenones (9). The structure of the products was established
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。