| 摘要 |
A process for preparing a 2,6-bis-[(4-azidophenyl)methylene]-cyclohexanone of the formula <IMAGE> wherein R is hydrogen or alkyl of 1-6 C atoms, comprises condensing a cyclohexanone of the formula <IMAGE> wherein R is as defined above, with 4-aminobenzaldehyde, the 4-amino group optionally being protected, in the presence of an alkaline condensing agent; removing the protective group when the 4-amino group is protected; diazotizing the resultant 2,6-bis-[(4-aminophenyl)methylene]-cyclohexanone of the formula <IMAGE> wherein R is as defined above, and reacting the diazotization product with an alkali metal azide.
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