Sulfur derivatives of N-chloro compounds

35

A-13 SULFUR DERIVATIVES

OF NCHLORO

COMPOUNDS

Helen M. Marsden* and Jean’ne M. Shreeve Department

of Chemistry,

University

of Idaho, Moscow, ID 83843 (U.S.A.)

The reactions of chlorine monofluoride with perfluoroalkyl-and perfluoroacyliminoeulfurdifluorides are known to give perfluoroalkyldichloroamines and N,N-dichlorofluoroamides,via the elimination of sulfur tetrafluoride,e.g., RfN=SF2 +

2ClF -

RfNC12 +

SF4*

We now find that the reactions of iminoeulfiteswith chlorine monofluoride take a surprisingly different route to give -cis and trans isomers of the sulfur(V1) derivatives while eliminating chlorine and trifluoromethyldichloroamine. RfN='S(ORf)2 +

4ClF -

F4S(ORf)2 +

* J. Fluorine Chem., 1 (1971/72)269-276.

CF3NCl2 +

Cl2