Patent ID: 6476175
Filing Date: 2002-11-05
Classification: C07D

Abstract:
A process comprising preparing a polyurethane in the presence of a catalyst which is a bicyclic amidine of the formula: wherein A is selected from the group consisting of â€”CR1R2â€”CR3R4â€”CR5R6â€”, â€”CR1R2â€”CR3R4â€”CR5R6â€”CR7R8â€”, and â€”CR1R2â€”CR3R4â€”CR5R6â€”CR7R8â€”CR9R10â€”, wherein the substituents in A are in each case numbered starting from the nitrogen atom, and B is selected from the group consisting of â€”CR11R12â€”CR13R14â€”, â€”CR11R12â€”CR15R16â€”CR13R14â€”and â€”CR11R12â€”CR15R16â€”CR17R18-CR13R14â€”, and R1 to R18 are, in each case independent of one another, hydrogen, C1-C4-alkyl, aryl, or C1-C4-alkyl that is substituted with hydroxyl, amino C1-C4-alkylamino or mercapto, with the proviso that at least one of the substituents R1 to R18 is selected from the group consisting of (1) hydroxyl, (2) amino, (3) C1-C4-alkylamino, (4) mercapto, (5) C1-C4-alkyl substituted with hydroxyl, (6) C1-C4-alkyl substituted with amino, (7) C1-C4-alkyl substituted with C1-C4-alkylamino, (8) C1-C4-alkyl substituted with mercapto, and (9) at least two of (1) to (8).