作者:Ya-Fei Ji、Wei-Bin Huang、Ying Guo、Jian-An Jiang、Xian-Dao Pan、Dao-Hua Liao
DOI:10.1055/s-0032-1318332
日期:——
A novel strategy for protecting dihydroxyl groups of catechols has been developed. Base-mediated cyclizations of catechols with 1,3-dibromopropane provided the corresponding benzo[b]1,4-dioxepans, and herefrom the protecting group was easily cleaved by aluminum chloride. The preparation of the antibacterial and antifungal agent 4-(2-aminothiazol-4-yl)benzene-1,2-diol from catechol reliably verified
已开发出一种保护儿茶酚二羟基的新策略。邻苯二酚与 1,3-二溴丙烷的碱介导环化提供了相应的苯并[b]1,4-二氧杂环己烷,因此保护基团很容易被氯化铝裂解。由邻苯二酚制备抗菌和抗真菌剂 4-(2-aminothiazol-4-yl)benzo-1,2-diol 可靠地验证了其适用于各种苛刻反应条件的可用性。