A mild method for the preparation of disulfides from acyclic bisthiocyanate
s is presented. The method involves cleavage of thiocyanates with TBAF to f
orm. the cyclic disulfides in moderate to good yield. The method can also b
e applied to the synthesis of acyclic disulfides. Base-sensitive functional
ities, such as esters, are unaffected by the reaction conditions. (C) 1999
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