作者:Thaís A Rossa、Nícolas S Suveges、Marcus M Sá、David Cantillo、C Oliver Kappe
DOI:10.3762/bjoc.14.36
日期:——
An efficient three-step protocol was developed to produce 2-(azidomethyl)oxazoles from vinyl azides in a continuous-flow process. The general synthetic strategy involves a thermolysis of vinyl azides to generate azirines, which react with bromoacetyl bromide to provide 2-(bromomethyl)oxazoles. The latter compounds are versatile building blocks for nucleophilic displacement reactions as demonstrated
开发了一种有效的三步方案,以连续流动过程从叠氮化乙烯生产2-(叠氮甲基)恶唑。一般的合成策略涉及叠氮化物乙烯的热解以生成叠氮化物,叠氮化物与溴乙酰溴反应生成2-(溴甲基)恶唑。后面的化合物是亲核取代反应的通用结构单元,如其随后在水性介质中用NaN3处理以得到具有良好选择性的叠氮基恶唑所证明。通过工艺整合,可以以较短的总停留时间(7至9分钟)和良好的总收率合成该有用的部分。