Production of 1,1,1,3-tetrachloropropane
Patent 4605802 Issued on August 12, 1986. Estimated Expiration Date: 
August 12, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 12, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2658930 3471579 3641170 Process for the preparation of tetrachloroalkanes Patent #: 4243607 InventorAssigneeApplicationNo. 06/364175 filed on 04/01/1982US Classes:570/257Preparing by increasing the number of carbons in the compoundExaminersPrimary: Warren, Charles F.Assistant: Boska, Joseph A. Attorney, Agent or FirmInternational ClassesC07C 17/275 (20060101)C07C 17/00 (20060101) AbstractIn the reaction of carbon tetrachloride with ethylene in the presence of a catalyst comprising a phosphite ester and an iron-containing material to produce 1,1,1,3-tetrachloropropane, the improvement which comprises employing powdered iron as the iron-containing material. Thereby the carbon tetrachloride is converted in large amount and with high selectivity to the desired product. The reaction proceeds well even under milder conditions than with the catalysts of the prior art.Other References
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