Alkyl and aryl isothiocyanates as masked primary amines
摘要:
Primary and secondary (but not tertiary) alkyl as well as aryl isothiocyanates react rapidly with 4-methyl-1,2-benzenedithiol (1) in methanol at room temperature, releasing the corresponding amines in good yields. This mild and simple procedure for unmasking amines proceeds chemospecifically with isothiocyanates even in the presence of such normally electrophilic and reactive functionalities as carboxylate ester and N-alkylphthalimide.
The direct allylic C(sp3)–H functionalization provides a straightforward protocol for the synthesis of valuable molecules. We report herein the first chemo- and site-selective method for allylic C(sp3)–H isothiocyanation of various internal alkenes under mild electrochemical conditions. This method exhibits broad functional group tolerance and excellent selectivity and can be applied for late-stage
Chekrii,G.S.; Smolanka,I.V., Soviet progress in chemistry, 1974, vol. 40, # 2, p. 60 - 62
作者:Chekrii,G.S.、Smolanka,I.V.
DOI:——
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Cambie, Richard C.; Rutledge, Peter S.; Strange, Gary A., Journal of the Chemical Society. Perkin transactions I, 1983, p. 553 - 565
作者:Cambie, Richard C.、Rutledge, Peter S.、Strange, Gary A.、Woodgate, Paul D.
DOI:——
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Reaction of olefins with a mixture of phenylselenenyl chloride and mercury(II) thiocyanate. Selective syntheses of .beta.-(phenylseleno)alkyl isothiocyanates as precursors of vinylic isothiocyanates