Process for the preparation of aromatic thiocarboxylic acid amid

Details Process for the preparation of aromatic thiocarboxylic acid amid Process for the preparation of aromatic thiocarboxylic acid amid

1975-05-23

1977-02-15

Wyman, Daniel E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260516, 260551S, C07C14940, C07C153063, C07C153067

Patent

active

040082644

ABSTRACT:
Aromatic thiocarboxylic acid amides are prepared by reaction of aromatic hydrocarbons with hydrogen thiocyanate or a salt of thiocyanic acid in at least 90% hydrofluoric acid. The reaction can be carried out in one single operation without the use of a Lewis acid or another catalyst. The thiocarboxylic acid amides obtained are known from the literature and serve as preliminary products for the preparation of nitriles, amides, carboxylic acids, heterocyclic compounds and the manufacture of plant protecting agents and pharmaceuticals.

REFERENCES:
patent: 2410862 (1946-11-01), Bousquet et al.
patent: 3180891 (1965-04-01), Ellzey et al.
patent: 3715395 (1973-02-01), Mrozik et al.
Theilheimer, ed., Synthetic Methods of Organic Chemistry, vol. 24, No. 676 (p. 295), 1970.
Theilheimer, ed., Synthetic Methods of Organic Chemistry, vol. 20, No. 505 (p. 420), 1966.
Buckley et al., CA 40: 1789.sup.3 (1946).
Tsoi et al., CA 57: 16458g (1962).

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