Cyclic sulfates containing acid-sensitive groups and chemoselective hydrolysis of sulfate esters
作者:B. Moon Kim、K. Barry Sharpless
DOI:10.1016/s0040-4039(01)80274-4
日期:——
as acetonide and silyloxy groups are efficiently converted to the corresponding cyclic sulfates via formation of the cyclic sulfites in the presence of a base and oxidation of the isolated sulfites using catalytic RuO4. Reactions of these cyclic sulfates with nucleophiles such as azide and benzoate provide sulfates, which can be successfully hydrolyzed by using a catalytic amount of sulfuric acid and
通过在碱的存在下形成环亚硫酸盐并使用催化的RuO 4氧化分离的亚硫酸盐,可将含有酸敏感性官能团(如丙酮化物和甲硅烷氧基)的二元醇有效地转化为相应的环状硫酸盐。这些环状硫酸盐与亲核试剂(如叠氮化物和苯甲酸酯)的反应提供了硫酸盐,可以通过使用催化量的硫酸和0.5-1.0当量的THF水将其成功水解。