Darstellung von Vinylisothiocyanaten durch Schwefel??Eliminierung aus Δ3??1, 3??Thiazolin??2??thionen
AQ Hussein, A Abu??Taha, JC Jochims
Index: Hussein,A.Q. et al. Chemische Berichte, 1978 , vol. 111, p. 3750 - 3753
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Citation Number: 7
Abstract
The A3-thiazoline-2-thiones 1 a, b eliminate sulfur thermally, photolytically, or with trimethyl phosphite to give the vinyl isothiocyanates 2a, b. Compound 2a forms a thiosemicarbazone 3a which cyclizes thermally to 4. This easily splits off the isopropyl group to give the triazolinethione 5. The vinyl isothiocyanate 2 b rearranges thermally or photochemically to the isoquinoline-lthione 7 which itself is photolabile.
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