Patent ID: 7605294
Filing Date: 2009-10-20
Classification: C07C,C08F

Abstract:
1. A method for the preparation of a substituted fluorene comprising: (a) providing a 3,6-disubstituted fluorene characterized by the formula: wherein: R (b) reacting said 3,6-disubstituted fluorene group with a chloromethylating agent to produce a 2(7)-monochloromethylene-3,6-disubstituted fluorene characterized by the formula: or a 2,7-dichloromethylene-3,6-disubstituted fluorene characterized by the formula: or a 2,4,7-trichloromethylene-3,6-disubstituted fluorene characterized by the formula: wherein: R and or a 2,7-dimethyl-3,6-disubstituted fluorene characterized by the formula: or a 2,4,7-trimethyl-3,6-disubstituted fluorene characterized by the formula: wherein: R