Preparation of 1,1,1,3,3-pentachloropropane by photochlorination of 1,1,1,3-tetrachloropropane
AssigneeAlliedSignal Inc.
InventorsTimothy Rech Demmin, Valeriy Georglevitch Barabanov, Svetlana Ivanovna Ozol, Victor Grigorievitch Temchenko
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Abstract
A process for the preparation of 1,1,1,3,3-pentachloropropane (HCC-240fa). HCC-240fa is prepared by the photochlorination of 1,1,1,3-tetrachloropropane (HCC-250). HCC-240fa is an important intermediate in the preparation of 1,1,1,3,3-pentafluoropropane (HFC-245fa) an HFC blowing agent which is not destructive to the ozone layer.
Claims20
A process for the preparation of 1,1,1,3,3-pentachloropropane which comprises contacting 1,1,1,3-tetrachloropropane with chlorine and in contact with sufficient ultraviolet light and under conditions to produce 1,1,1,3,3-pentachloropropane.
Dependencies are inferred from the claim text.