Process for the preparation of 5-chloro-3-chlorosulphonyl-2-thio

Details Process for the preparation of 5-chloro-3-chlorosulphonyl-2-thio Process for the preparation of 5-chloro-3-chlorosulphonyl-2-thio

1991-12-02

1992-08-11

Siegel, Alan

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D33332

Patent

active

051380722

ABSTRACT:
Process for the preparation of 5-chloro-3-chlorosulphonyl-2-thiophenecarboxylic acid esters by chlorination in the presence of activated iron.

REFERENCES:
patent: 2168260 (1939-08-01), Heisel et al.
patent: 3929907 (1975-12-01), Janzon et al.
patent: 4028373 (1977-06-01), Hromatka et al.
patent: 4180662 (1979-12-01), Pfister et al.
patent: 4801591 (1989-01-01), Binder
Hartough, Thiophene & HS Derivatives (1932) pp. 147, 179.
Cohon, Adv. Inorg. Chem. 2nd Ed. (1966) p. 857.

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