Process for the preparation of 2-aminoindane derivatives

Abstract From the Canadian patent

Preparing derivatives of 2-aminoindane of formula: (I), in which n = 2, 3 or 4, the (CH2)n group having a straight or branched chain, R1 represents a hydrogen atom an alkyl or hydroxy-, alkyl group having 1 to 3 carbon atoms or an alkenyl or alkynyl group having 2 or 3 carbon atoms, R2 represents an alkyl or hydroxyalkyl group having 1 to 3 carbon atoms or an alkenyl or alkynyl group having 2 or 3 carbon atoms whereby R1 and R2 may, be identical or different and may form together with the contiguous nitrogen atom a nitrogenous heterocyclic group R3 represents a, hydrogen atom or a substituent such as a hydroxy, chloro, tri-, fluormethyl or lower alkyl radical which may be in the ortho, meta …