Solventless preparation of phthalimides

Details Solventless preparation of phthalimides Solventless preparation of phthalimides

1999-05-07

2000-05-23

McKane, Joseph K.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548476, 548477, 548480, C07D40306

Patent

active

060667435

ABSTRACT:
A method for the solventless synthesis of a phthalimide or phthalimide mixture is provided comprising contacting at least one amine reactant and at least one anhydride reactant in a solventless environment at a first temperature sufficient to allow the reactants to at least partially condense; and increasing the temperature to a second temperature sufficient to melt the reaction mixture, thereby allowing the reaction to go essentially to completion and form the reaction product.

REFERENCES:
patent: 4499285 (1985-02-01), Evans
patent: 4675374 (1987-06-01), Nichols
patent: 5536846 (1996-07-01), Dellacoletta et al.

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