Processes for the reduction of imide ester functionality

Details Processes for the reduction of imide ester functionality Processes for the reduction of imide ester functionality

1997-05-22

1999-08-10

Trinh, Ba K.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546240, C07D21122, C07D21132

Patent

active

059360909

ABSTRACT:
The present invention provides improved processes for the chemical reduction of imide esters to the corresponding amino alcohols with yields greater than 76%. A specific range of ethereal to hydrocarbon solvent ratio is used. The improved yield can be achieved using as a reducing agent lithium aluminum hydride or the less costly sodium aluminum hydride in combination with an additive such as lithium chloride.

REFERENCES:
patent: 4902801 (1990-02-01), Faruk et al.
Greenwood, N.N. et al, Chemistry of the Elements, 1984, Pergamon Press, pp. 256-261.
L. Weber, "Functionalization of Living Polymers--Results and Problems," Makromol. Chem., Macromol. Symp. 3, 317-329 (1986).

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