A new facile synthetic method for the construction of 1,3-oxathiolan-2-ylidenes

A new, convenient and efficient synthetic method for the construction of 1,3-oxathiolan-2-ylidenes via sodium borohydride reduction of the addition product of dithiocarbamic acid esters with α-bromoketones under basic conditions is reported. This method is general and applicable to a range of systems.

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