Alpha aminoylidene phthalide synthetic intermediates - prepd by base-catalysed isomerisation of 2-amino-indan-1,3-diones

摘要

Phthalides of formula (I) are new: (X = H or CH3O; R = CH3, phenyl, p-anisyl, p-chloro or bromophenyl; R' = H, CH3, C2H5 or n-C4H9; R" = H, linear 1-4C alkyl, cyclohenxyl, benzyl, phenyl, p-tolyl, p-anisyl, p-chloro-or bromophenyl, or R' and R" are together (CH2)2O(CH2)2, (CH2)4 or (CH2)5). (I) are synthetic intermediates.