A selective synthesis of β-isothiocyanato ketones through a Staudinger/aza-Wittig reaction of β-azido ketones
作者:Anastasia A. Fesenko、Ekaterina A. Dem’yachenko、Galina A. Fedorova、Anatoly D. Shutalev
DOI:10.1007/s00706-012-0869-3
日期:2013.3
AbstractA novel selective two-step synthesis of β-isothiocyanato ketones from α,β-unsaturated ketones has been developed. The synthesis includes preparation of β-azido ketones followed by reaction with triphenylphosphine and carbon disulfide. Treatment of the obtained β-isothiocyanato ketones with ammonia or methylamine gives corresponding hexahydro-4-hydroxypyrimidine-2-thiones. The latter are also
摘要从α,β-不饱和酮开发了一种新颖的选择性两步合成β-异硫氰酸根酮的方法。合成包括制备β-叠氮基酮,然后与三苯基膦和二硫化碳反应。用氨或甲胺处理所得的β-异硫氰酸根合酮,得到相应的六氢-4-羟基嘧啶-2-硫酮。后者也可以直接由β-叠氮基酮制备,而无需分离中间体β-异硫氰酸根酮。 图形概要