Procedure for the preparation of 1,1,2-trialkyl-1H-indene derivatives from 2- (1,1,2-trialkyl-3-oxopropyl) benzaldehyde derivatives (Machine-translation by Google Translate, not legally binding)

Process for the preparation of 2-alkyl-1H-indene and 2,3,4,4a-tetrahydro-1H-fluorene derivatives from derivatives of 2- (2-alkyl-3-oxopropyl) benzaldehyde and 2- (2 -formylcyclohexyl) benzaldehyde, respectively. The present invention describes a process for the preparation of 2-alkyl-1H-indene and 2,3,4,4a-tetrahydro-1H-fluorene derivatives, by acid treatment of 2- (2-alkyl-3-) derivatives oxopropyl) benzaldehyde and 2- (2-formylcyclohexyl) benzaldehyde, respectively. (Machine-translation by Google Translate, not legally binding) Procedimiento para la preparación de derivados de 2-alquil-1H-indeno y 2,3,4,4a-tetrahidro-1H-fluoreno a partir de derivados de 2-(2-alquil-3-oxopropil)benzaldehido y 2-(2-formilciclohexil)benzaldehido, respectivamente. La presente invención describe un procedimiento para la preparación de derivados de 2-alquil-1H-indeno y de 2,3,4,4a-tetrahidro-1H-fluoreno, mediante tratamiento ácido de derivados de 2-(2-alquil-3-oxopropil)benzaldehído y 2-(2-formilciclohexil)benzaldehído, respectivamente.