Process for the continuous preparation of aminoaryl or aminoalky

Details Process for the continuous preparation of aminoaryl or aminoalky Process for the continuous preparation of aminoaryl or aminoalky

1992-04-21

1994-07-12

Cintins, Marianne M.

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

Organic compounds

Sulfate esters

558 31, 558 33, 558 41, C07C30969, C07C31504, C07C30964

Patent

active

053290402

ABSTRACT:
In the process for the continuous preparation of aminoaryl or aminoalkyl .beta.-sulfatoethyl sulfones by reaction of the corresponding .beta.-hydroxyethyl sulfones with sulfuric acid in a molar ratio of 1:1 to 1:1.15 at temperatures above 120 .degree. C. a mixture of a .beta.-hydroxyethyl sulfone with sulfuric acid is supplied to a fluidized bed of end product produced by recycling and mechanical stirring. The mixture is reacted at 100.degree. to 200.degree. C.

REFERENCES:
patent: 3024258 (1962-03-01), Brooks et al.
patent: 4346046 (1982-08-01), Nishimura et al.
patent: 4482501 (1984-11-01), Nishimura et al.
Chem. Abs.; STN; EP-144701-A; Jun. 1985.
Chem. Abs.; STN; WO-8905290; Jun. 1989.

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