Process for the preparation of 4-mercaptobenzonitriles, and 4-me

Details Process for the preparation of 4-mercaptobenzonitriles, and 4-me Process for the preparation of 4-mercaptobenzonitriles, and 4-me

1986-12-04

1989-06-20

Sutto, Anton H.

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

Organic compounds

Nitriles

C07C12152

Patent

active

048410896

ABSTRACT:
4-Mercaptobenzonitriles are prepared by reacting the appropriate 4-halogenobenzonitrile with sodium sulfide or sodium hydrogen sulfide in the presence of an inert organic solvent, and subsequently acidifying. The 4-mercaptobenzonitriles thus accessible are new, with the exception of the unsubstituted 4-mercaptobenzonitrile, and can be used as intermediates for the preparation of nematic liquid-crystalline products, herbicides and plant-growth regulators.

REFERENCES:
patent: 4202791 (1980-05-01), Sato et al.
Justus Liebigs Annalen Der Chemie, Band 716, 1968, Seiten 47-60, Weinheim. Bergstr.; G. Beck et al.; "Nucleophile Substitution an chlorierten Mono- und Dicyan-benzole", *Seiten 47, 55, Berbindung 3a*.
Chemical Abstracts, Band 77, Nr. 3, 17. Jule 1972, Seite 449, Zusammenfassung Nr. 18874n, Columbus, Ohio, U.S.A.; Y. Takikawa et al.: "Reactions of Organic Compounds with Sodium Hydrosulfide in Liquid Ammonia. IV. Reactions of Aromatic Nitriles with Sodium Hydrosulfide in Liquid Ammonia", & Nippon Kagakua Kaishi 1972, (4), 776-70.
Chemical Abstracts, Band 77, Nr. 15,9. Oktober 1972, Seite 383, Zusammenfassung Nr. 101077a, Columbus, Ohio, U.S.A.; Y. Takikawa et al.: "Reaction of Organic Compounds with Sodium Hydrosulfide in Liquid Ammonia. V. Reactions of Aromatic Halocynides with Sodium Hydrosulfide in Liquid Ammonia", & Technol. Rep. Iwate Univ. 1971, 5, 59-65.
Chemical Abstracts, Band 104, Nr. 17, 28. Apr. 1986, Seite 661, Zusammenfassung Nr. 148557y, Columbus, Ohio, U.S.A.; & JP-A-60 163 857 (Hitachi Ltd) 08-26-1985.
Nippon Kagaku Kaisha (4), 766 to 777 (1972).

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