Process for preparing isocyanate and isocyanate-based derivative

Details Process for preparing isocyanate and isocyanate-based derivative Process for preparing isocyanate and isocyanate-based derivative

1994-05-06

1996-09-17

Gupta, Yogendra N.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544196, 544200, 544207, C07D25154

Patent

active

055569714

ABSTRACT:
A process is provided for preparing isocyanate and isocyanate-based 1,3,5-triazine derivatives by the direct phosgenation of (at least tris-unsubstituted amino)-1,3,5-triazines.

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patent: 5084541 (1992-01-01), Jacobs, III et al.
patent: 5288865 (1994-02-01), Gupta
E. M. Smolin and L. Rapoport, "S-Triazines and Derivatives", Interscience Publishers Inc., New York, p. 333 (1959).
M. J. Coghlan and B. A. Caley, "Trichloromethyl Carbonate as a Practical Phosgene Source," Tetrahedron Letters, vol. 30, No. 16, pp. 2033-2036 (1989).

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