Patent ID: 8748664
Filing Date: 2014-06-10
Classification: C07C

Abstract:
1. A method for producing the diamine compound represented by formula (1) below, the method comprising steps of: obtaining a compound (B) represented by formula (4) below by a condensation reaction between 2,7-dihydroxy-9-fluorenone represented by formula (2) and a compound (A) represented by formula (3), obtaining a compound (C) represented by formula (5) below by reducing a ketone group at the 9-position in a fluorene skeleton of the compound (B) to a state where a hydroxy group is bonded to a carbon atom at the 9-position, and thereafter acetylating the hydroxy group, obtaining a diamine compound represented by the formula (1) by reducing the carbon atom at the 9-position, to which the acetoxy group is bonded, in the fluorene skeleton of the compound (C), and reducing nitro groups included in the compound (A)-derived substituents that are bonded to carbon atoms at the 2-position and the 7-position in the skeleton, wherein X in formula (3) denotes a halogen group, and A in formulae (1) and from (3) to (5) denotes: