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发明名称
6-hydroxycumarine preparation
摘要
Diazotised 6-aminocumarine is heated, pref. at 100 degrees C-140 degrees C, in the presence of conc H2SO4, e.g. 40% - 80% pref. 60% - 70%. Used in bright nickel electroplating compsns.
申请公布号
DE1930241(A1)
申请公布日期
1970.12.17
申请号
DE19691930241
申请日期
1969.06.13
申请人
SCHERING AKTIENGESELLSCHAFT,BERLIN UND BERGKAMEN
发明人
WOLFGANG CLAUSS,DR.
分类号
C07D311/14
主分类号
C07D311/14
代理机构
代理人
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