Process for the preparation of aryldiazosulfonates

Details Process for the preparation of aryldiazosulfonates Process for the preparation of aryldiazosulfonates

1982-06-24

1985-05-07

Higel, Floyd D.

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

Organic compounds

Diazo or diazonium

534558, 534560, 534556, C07C11304

Patent

active

045159408

ABSTRACT:
The invention relates to a process for the preparation of aryldiazosulfonates by reacting aqueous solutions of aryldiazonium salts with solutions or suspensions of sulfites, in particular in a manner such that the presence of an excess of one of the two reactants during the reaction is substantially excluded. The process according to the invention makes it possible substantially to increase the yields of aryldiazosulfonates.

REFERENCES:
patent: 1897410 (1933-02-01), Zitscher et al.
patent: 1975409 (1934-10-01), Schnitzpahn et al.
patent: 3117954 (1964-01-01), Hupfer
Chemische Berichte, vol. 92, No. 12, (1959), pp. 3031-2043, Lewis et al.
Houben-Weyl, "Methoden der Organischen Chemie", 4 edition, vol. X/3, Part 3, (1956), Georg Thieme Verlag, Stuttgart, pp. 570-576.
Ullmanns Encyklopadie der technischen Chemie, 4 edition, vol. 10, (1975), Verlag Chemie, Weinheim, p. 118.

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