Acyl Thiocyanates. I. Aroyl Thiocyanates.
نویسندگان
چکیده
منابع مشابه
The Melting Mechanism of the Alkali Thiocyanates
where Ws and WL represent the number of independent ways of realizing the arrangements of solid and melt respectively and Sf is the entropy of fusion. Each new kind of disorder which occurs on passing from the crystal to the melt involves a new mechanism of randomization on melting. Ubbelohde! has summarized the different ways of randomization in the transition from the solid to the melt as pos...
متن کاملGeneral and practical formation of thiocyanates from thiols.
A new method for the cyanation of thiols and disulfides using cyanobenziodoxol(on)e hypervalent iodine reagents is described. Both aliphatic and aromatic thiocyanates can be accessed in good yields in a few minutes at room temperature starting from a broad range of thiols with high chemioselectivity. The complete conversion of disulfides to thiocyanates was also possible. Preliminary computatio...
متن کاملPhosphorus pentasulfide mediated conversion of organic thiocyanates to thiols
In this paper we report an efficient and mild procedure for the conversion of organic thiocyanates to thiols in the presence of phosphorus pentasulfide (P2S5) in refluxing toluene. The method avoids the use of expensive and hazardous transition metals and harsh reducing agents, as required by reported methods, and provides an attractive alternative to the existing methods for the conversion of ...
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The copper-catalyzed cyanation of disulfides by azobisisobutyronitrile (AIBN) was developed, leading to thiocyanates in moderate to good yields. This procedure tolerates a series of functional groups, such as chloro, nitro, methyl and methoxycarbonyl in the phenyl ring of disulfides. Notably, it enables the use of two ArS units in (ArS)2. CuI was found to be essential for the in situ formation ...
متن کاملFULL PAPER General and Practical Formation of Thiocyanates from Thiols
A new method for the cyanation of thiols and disulfides using cyanobenziodoxol(on)e hypervalent iodine reagents is described. Both aliphatic and aromatic thiocyanates can be accessed in good yields in a few minutes at room temperature starting from a broad range of thiols with high chemioselectivity. The complete conversion of disulfides to thiocyanates was also possible. Preliminary computatio...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1971
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.25-1160