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A simple method to prepare unsymmetrical di- tri- and tetrasulfides

✍ Scribed by Gérard Derbesy; David N. Harpp

Publisher
Elsevier Science
Year
1994
Tongue
French
Weight
288 KB
Volume
35
Category
Article
ISSN
0040-4039

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✦ Synopsis

Abstrack U~m&al di-hi-and tetmnryddw can be-pmpared in a one-pot maction us&g so#& scl2 and &cl2 rerpectively to pmll wupblg of the tqpqate thidr. A variety of organic dl-and trlsulfides have been found in natural scxuces.s Among these are examples from the onion family (genus AMum),~ as well as simple polysulflde derivatives la and 2a isolated from a Japanese plant.fb Trisulflde 3a has been found in red alg@ and of particular recent interest is the extremely unsymmettical trisulfide represented by Calicheamicln ~lI(3b).3

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