Preparation of menthane diisocyanate by addition of isocyanic ac

Details Preparation of menthane diisocyanate by addition of isocyanic ac Preparation of menthane diisocyanate by addition of isocyanic ac

1985-11-25

1986-10-21

Siegel, Alan

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

Organic compounds

Isocyanate esters

C07C 7100

Patent

active

046187073

ABSTRACT:
A process for preparing menthane diisocyanate by reaction of a terpinyl monoisocyanate with isocyanic acid in a medium which is an excess of isocyanic acid, a polar solvent, or a mixture of solvents which includes a polar solvent in the presence of a catalyst which is a Bronsted acid or a Lewis acid is disclosed.

REFERENCES:
patent: 3290350 (1966-12-01), Hoover
patent: 3471542 (1969-10-01), Cross et al.
patent: 4377530 (1983-03-01), Trenbeath et al.

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