Method of preparation of (substituted-thio)alkyl isothiocyanates

Organic compounds -- part of the class 532-570 series – Organic compounds – Isothiocyanate esters

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C07C119042

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active

047805579

ABSTRACT:
A one-step process for the preparation of (substituted-thio)alkyl isothiocyanates in high yield comprising contacting a haloalkyl sulfide with a thiocyanate salt in the absence of a catalyst under reaction conditions sufficient to produce the desired (substituted-thio)alkyl isothiocyanate is disclosed. Examples of compounds produced by this process include CH.sub.3 SCH.sub.2 CH.sub.2 NCS and n-C.sub.6 H.sub.13 SCH.sub.2 CH.sub.2 NCS.
The compounds produced by this process are useful as intermediates in the synthesis or ore flotation chemicals such as substituted thiocarbamates or thioureas.

REFERENCES:
patent: 3160649 (1964-12-01), Hasselstrom et al.
patent: 3584028 (1971-06-01), Argabright et al.
patent: 4479903 (1984-10-01), Dauplaise
Acta Chemica Scandinavica II, Anders Kjaer, Bo Christensen, 1298-1307.
Organic Chemistry of Bivalent Sulfur, VI, 64, E. E. Reid (ed, Chemical Publishing Co., Inc. (1965)).
Uch. Zap. Azerb. Bos. Univ., Ser. Khim. Nauk. (#1), 50-51 (1972).
J5 8090-546-A, Kinjirushi Wasabik.
J5 7134-461, Nihon Noyaku KK.

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