Preparation of isothiazolones

Details Preparation of isothiazolones Preparation of isothiazolones

1987-11-27

1991-02-19

Rivers, Diana G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

562840, C07D27502

Patent

active

049945742

ABSTRACT:
Preparation of 3-isothiazolones by a single-kettle synthesis from a 3,3'-dithiodipropionic acid, a 3-thiopropionic acid, or their related acid halide by reacting sequentially with a thionyl halide (if the (di)acid halide has not previously been formed), followed by reaction with a halogenating agent, then a primary amine and base, and then with a halogenating agent.

REFERENCES:
patent: 3761488 (1973-09-01), Lewis et al.
patent: 3849430 (1974-11-01), Lewis et al.
Luttringhaus et al., Agnew. Chem. Int. E. I. Eng. 3, 67 (1964).
Luttringhaus et al., Ann. Chem. 679, 123 (1964).
J. Organic Chem. 28, 1901 (1963).

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