作者:John E.T. Corrie
DOI:10.1016/s0040-4020(98)00214-2
日期:1998.5
Synthesis of unsymmetrical benzoins and their esters can be compromised by isomerisation via the enediol (or its anion). This could be avoided by suitable reaction conditions for the benzoins and their esters 2a/b and 3a/b but not for the 3-furyl compound 4a. A convenient synthesis of 3,5-dimethoxy-2,4,6-trimethylbenzaldehyde 10 is described and the compound was converted to the hindered benzoin 5a
不对称安息香及其酯的合成可通过烯二醇(或其阴离子)进行异构化而受到损害。可以通过对苯偶姻及其酯2a / b和3a / b合适的反应条件来避免这种情况,而对于3-呋喃基化合物4a则不能避免。描述了一种方便的3,5-二甲氧基-2,4,6-三甲基苯甲醛10的合成,并将该化合物转化为受阻安息香5a。