Cyclic sulfonium ylids

Details Cyclic sulfonium ylids Cyclic sulfonium ylids

1978-11-06

1980-04-01

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549 60, C07D33324, C08L 5100

Patent

active

041962982

ABSTRACT:
Novel cyclic sulfonium ylids corresponding to the formula ##STR1## wherein R is a hydrocarbylene radical (or a hydrocarbylene radical whose chain length is interrupted by an atom of oxygen or sulfur) of from 2 to about 20 carbon atoms, are useful as cross-linking agents for carboxyl-containing polymers. The compounds are conveniently prepared by reacting phenacyltetrahydrothiophenium bromide with the corresponding hydrocarbylene diisocyanate in the presence of a strong base (e.g. sodium hydride) and anhydrous tetrahydrofuran.

REFERENCES:
patent: 3915991 (1975-10-01), Schmidt et al.

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