Synthesis of alkoxy and phenoxy substituted aryl sulfides
AssigneeCelanese Corporation
InventorsHarry T. Hanson, John B. Sapp, Jr.
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Abstract
Provided is a novel process for the synthesis of aryl sulfides substituted with an alkoxy or phenoxy substituent. The process comprises reacting an alkoxy or phenoxy substituted aromatic compound with a sulfur dihalide, preferably sulfur dichloride, in the presence of an alkali metal tetrafluoroborate catalyst, with the amount of said aromatic reactant compound preferably being sufficient to solvate the sulfur dichloride and catalyst sufficiently to allow the reaction to occur.
Claims17
A process for the synthesis of a alkoxy or phenoxy substituted aryl sulfide comprising reacting in the presence of a catalytic amount of an alkali metal tetrafluoroborate catalyst a sulfur dihalide with an aromatic reactant compound of the structural formula ##STR3## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which can be the same or different, represent hydrogen or a lower alkyl, and Z is --OR.sub.5 with R.sub.5 representing an alkyl having from 1 to 8 carbon atoms or a phenyl.
Dependencies are inferred from the claim text.