Process for the diazotisation of primary aromatic amines which a

Details Process for the diazotisation of primary aromatic amines which a Process for the diazotisation of primary aromatic amines which a

1987-12-22

1989-10-17

Higel, Floyd D.

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

Organic compounds

Diazo or diazonium

534558, C07C11304

Patent

active

048748471

ABSTRACT:
Amines which are sparingly soluble in water are diazotised by first preparing a melt or solution of said amines and then precipitating them from the melt or a solution in an organic solvent by adding water, and then diazotising the resultant suspension. In this procedure, the reaction times are appreciably shorter than those of conventional processes.

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patent: 3117954 (1964-01-01), Hupfer
patent: 3423391 (1969-01-01), Kindler et al.
patent: 4083846 (1978-04-01), Leverenz
patent: 4234478 (1980-11-01), Atherton et al.
patent: 4246171 (1981-01-01), Hamilton et al.
patent: 4355186 (1982-10-01), Becker et al.
patent: 4355189 (1982-10-01), Volkwein et al.
Encyclopedia of Chemical Technology vol. 2, p. 869, Second Edition.

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