Process for preparing alkylene episulfides and episelenides
AssigneeAllied Chemical Corporation
InventorsCharles T. Ratcliffe, James T. Yardley
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Abstract
A process for the preparation of alkylene episulfides or episelenides is provided which comprises contacting elemental sulfur or elemental selenium, respectively, with an olefin, preferably ethylene, while irradiating with electromagnetic radiation in the infrared to ultraviolet range. The alkylene episulfides and episelenides are useful in the production of a variety of functional polymers.
Claims10
A process for the preparation of alkylene episulfides or episelenides which comprises contacting elemental sulfur or elemental selenium, respectively, with an olefin while irradiating the sulfur/seleniumolefin materials with electromagnetic radiation in the infrared to ultraviolet range, said olefin having 2 to 6 carbon atoms and being represented by the formula:
- R.sup.1 R.sup.2 C=CR.sup.3 R.sup.4
- wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently selected from the group consisting of hydrogen and alkyl groups of 1 to 4 carbon atoms.
Dependencies are inferred from the claim text.