Ferric(III) Chloride-Promoted Efficient Thiocyanation of Arylalkenes: A Facile Synthesis of Dithiocyanates
作者:J. Yadav、B. Reddy、Manoj Gupta
DOI:10.1055/s-2004-829150
日期:——
thiocyanate to the corresponding radical and promotes subsequent addition to nucleophilic olefins to produce dithiocyanate derivatives under mild conditions with high efficiency. Excellent yields and chemoselectivities together with the environmental-friendly nature of the Fe(III) chloride makes this method an attractive alternative to established methods. The use of ferric chloride makes it quite simple
作者:Richard C. Cambie、David S. Larsen、Peter S. Rutledge、Paul D. Woodgate
DOI:10.1039/p19810000058
日期:——
‘thiocyanogen bromide’ prepared from equimolar amounts of bromine and thallium(I) thiocyanate in wet chloroform, gives moderate to high yields of vic-bromothiocyanates. The addition proceeds by an ionic mechanism involving nucleophilic attack of a bromide ion on an S-cyanothiiranium cation. Unlike vic-iodothiocyanates, the vic-bromothiocyanates are not readily isomerized to the corresponding vic-halogenoisothiocyanates