An Efficient Synthesis of 3,3′,4,4′-Tetrahydro-4,4′-bibenzo[e][1,3]oxazine-2,2′-dione Derivatives with the Aid of Low-valent Titanium
作者:Guolan Dou、Fang Sun、Xuan Zhao、Daqing Shi
DOI:10.1002/cjoc.201180418
日期:2011.11
Synthesis of 3,3′,4,4′‐tetrahydro‐4,4′‐bibenzo[e][1,3]oxazine‐2,2′‐diones via reaction of salicylidendphenylhydrazone and triphosgene with the aid of low‐valent titanium reagent is described. This method has the advantages of accessible starting materials, good yields and short reaction time.
水杨基苯二sal与三光气在低价钛的辅助下合成3,3',4,4'-四氢-4,4'-联苯并[ e ] [1,3]恶嗪-2,2'-二酮描述了试剂。该方法具有原料易得,产率高和反应时间短的优点。