Diphenyl-1,3-benzoxazine-2-ones

Details Diphenyl-1,3-benzoxazine-2-ones Diphenyl-1,3-benzoxazine-2-ones

1977-03-16

1978-02-14

Ford, John M.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

96 48HC, 2603403, C07D26528

Patent

active

040740501

ABSTRACT:
A triphenylmethane compound represented by the formula (Ia) ##STR1## OR A MIXTURE THEREOF, WHEREIN R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and X are as defined hereinafter, useful as a color former.

REFERENCES:
patent: 3446804 (1969-05-01), Shavel et al.
patent: 3513166 (1970-05-01), Richman
patent: 3967835 (1976-07-01), Ozutsumi et al.

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