Radical chlorosulfonyl

The 2-chloro/l-chloro ratio in chlorination of 2,3-dimethylbutane, for instance, is 12.0 with sulfuryl chloride versus 4.2 in photochlorination. The chlorosulfonyl radical, however, easily decomposes under reaction conditions to yield a chlorine atom [Eq. (10.19)], which also participates in chlorination ... 

A variety of chemical modifications result Irom radical additions or cyclo-additions to the (CH) backbone, e.g. with chlorosulfonyl isocyanate. The ring of the adduct thus formed can be opened by alkalis. The reaction scheme for cyclo-addition of chlorosulfonyl isocyanate and ring opening to substituted hydrophilic polyacetylene is as follows ... 

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