A NOVEL SYNTHESIS OF CYCLOHEPTA[ 2,1-b:2,3-b′]DI[1,4]BENZOXAZINES AND 14H[1,4]BENZOXAZINO[3′,2′:3,4] CYCLOHEPTA[1,2-b][1,4]BENZOXAZINES
作者:Tetsuo Nozoe、Harue Okai、Hidetsugu Wakabayashi、Sumio Ishikawa
DOI:10.1246/cl.1984.1145
日期:1984.7.5
The title compounds, namely, the chiral acetals and their positional isomers were efficiently prepared by heating 6-bromocyclohepta[b][1,4]benzoxazines and the substituted o-aminophenols at 120 °C in acetic acid.
通过在 120 °C 的
乙酸中加热 6-
溴环庚 [b][1,4] 苯并恶嗪和取代的邻
氨基苯酚,可以有效地制备标题化合物,即手性
缩醛及其位置异构体。