Purification of 3,5-diaminobenzotrifluoride by selective precipi

Details Purification of 3,5-diaminobenzotrifluoride by selective precipi Purification of 3,5-diaminobenzotrifluoride by selective precipi

1991-11-25

1992-07-14

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

C07C20986

Patent

active

051304902

ABSTRACT:
3,5-Diaminobenzotrifluoride can be readily separated from 4-chloro-3,5-diaminobenzotrifluoride by the addition of hydrogen chloride. 3,5-Diaminobenzotrifluoride forms hydrochloride salt, while 4-chloro-3,5-diaminobenzotrifluoride does so much less readily.

REFERENCES:
patent: 3452096 (1969-06-01), Palevada et al.
patent: 3452097 (1969-06-01), Beale et al.
patent: 4409386 (1983-10-01), Chang
patent: 4532352 (1985-07-01), Patton

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