The Reaction of Olefins with a Mixture of Iodine and Mercury(II) Thiocyanate. Predominant Formation of<i>vic</i>-Iodo(isothiocyanato)alkanes
作者:Nanao Watanabe、Sakae Uemura、Masaya Okano
DOI:10.1246/bcsj.56.2458
日期:1983.8
Treatment of olefins with a mixture of iodine and mercury(II) thiocyanate in benzene or diethyl ether gives vic-iodo(isothiocyanato)alkanes and vic-iodo(thiocyanato)alkanes in a high yield, the former being predominant. Similar results were obtained by using silver(I) and thallium(I) thiocyanates, though both the yield and the selectivity are slightly lower. By use of potassium thiocyanate and copper(I)
vic-Iodothiocyanates and iodoisothiocyanates. Part 3. Further preparations, and the formation of 2-alkoxy-2-thiazolines
作者:Richard C. Cambie、David Chambers、Peter S. Rutledge、Paul D. Woodgate、Sheila D. Woodgate
DOI:10.1039/p19810000033
日期:——
3-t-butylcyclohexene with iodine and potassium thiocyanate are examined. The action of iodine and thiocyanogen with (E)-hex-3-ene gives different results from those reported in the literature. Isomerizations of the vic-iodothiocyanates to vic-iodoisothiocyanates and formation of 2-alkoxy-2-thiazolines from the latter adducts are reported.
vic-Iodothiocyanates and iodoisothiocyanates. Part 4. The synthesis of 2-substituted-2-thiazolines
作者:Richard C. Cambie、David Chambers、Peter S. Rutledge、Paul D. Woodgate
DOI:10.1039/p19810000040
日期:——
The reactions of trans-1-iodo-2-isothiocyanatocyclohexane with a number of carbon nucleophiles to form 2-substituted-2-thiazolines are described. Reactions of several vic-iodoisothiocyanates with butyl-lithium give products which are dependent on the solvent and/or temperature.
vic-Iodothiocyanates and iodoisothiocyanates. Part 5. Reactions of iodoisothiocyanates with sulphur nucleophiles
作者:Richard C. Cambie、Gregory D. Mayer、Peter S. Rutledge、Paul D. Woodgate
DOI:10.1039/p19810000052
日期:——
The reactions of vic-iodoisothiocyanates with some sulphur nucleophiles to form either 2-sulphur-substituted 2-thiazolines or thiazolidine-2-thiones are reported. The thiazolidine-2-thione (10) is an effective sulphur-transfer agent for the conversion of oxirans into the corresponding thiirans.