Potent Antipsoriatic Agents: A Facile Preparation of Acylated Derivatives from Dithranol in a Mild Basic Reaction
作者:David Woei-Ming Liang、Chun-Jian Du
DOI:10.1002/jccs.200400018
日期:2004.2
Treatment of dithranol 1 with various equivalents of acetyl chloride and Et 3 N in THF at room temperature afforded the corresponding acylated derivatives, such as 1-acetyloxy- and 1,8-diacetyloxy-9(10H)-anthracenones, 6a,and 6b, as well as 1,8,9-triacetyloxyanthracene 7a, and 1,8,9-triacetyloxy-10-acetylanthracene 7b. 1,8-Bis(trimethylacetyloxy)-9(10H)-anthracenone 6c was also obtained in high yield
在室温下,用各种当量的乙酰氯和 Et 3 N 在 THF 中处理联蒽酚 1,得到相应的酰化衍生物,例如 1-乙酰氧基-和 1,8-二乙酰氧基-9(10H)-蒽酮、6a 和 6b,以及1,8,9-三乙酰氧基蒽7a和1,8,9-三乙酰氧基-10-乙酰基蒽7b。1,8-双(三甲基乙酰氧基)-9(10H)-蒽酮6c也通过在温和酰化过程中使用新戊酰氯以高产率获得。