Cobalt phthalocyanine mediated aerobic oxidation of thiols: A simple and convenient preparation of disulphides
Cobalt phthalocyaninetetrasulphonamide/tetrasodium salt of cobalt tetrasulphophthalocyanine catalyzed oxidation with molecular oxygen form a simple, efficient and environmentally acceptable synthetic tool for the oxidation of thiols to disulphides in excellent yields, under mild conditions and without any side reactions.
Venkateshwar Rao,Narasimha Rao,Jain, Suman L.,Sain, Bir
p. 1151 - 1157
(2007/10/03)
A New Group of Compounds Derived from Nereistoxin - Synthesis of Bis-dimethylamino-tris-disulfanes
The reaction of organo-thiosulfates, BUNTE-salts, with mercaptans is a convenient synthesis of disulfanes.Similarly bis-BUNTE-salt 7 and tert. butyl mercaptan give bis-disulfane 5c.By treating 7 with several aliphatic mercaptans we found the formation of the tris-disulfanes 8a-d in preparative amounts in addition to the bis-disulfanes 5a-d expected.This reaction was investigated.The preparation of the compounds 8 is described and a proposal is given for a mechanism of the formation of 8 as a thiol-disulfide-interchange.
Muehlstaedt, M.,Heinicke, J.,Schubert H.
p. 841 - 847
(2007/10/02)
ACTIVATION AND SYNTHETIC APPLICATIONS OF THIOSTANNANES. EFFICIENT CONVERSION OF THIOLS INTO DISULFIDES
Various kinds of thiols are converted into the corresponding disulfides under mild conditions with the aid of alkoxystannane-ferric chloride.
Sato, Tsuneo,Otera, Junzo,Nozaki, Hitosi
p. 3591 - 3594
(2007/10/02)
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