GB1218528A - Preparation of haloalkanes - Google Patents

Preparation of haloalkanes

Info

Publication number
GB1218528A
GB1218528A GB2775669A GB2775669A GB1218528A GB 1218528 A GB1218528 A GB 1218528A GB 2775669 A GB2775669 A GB 2775669A GB 2775669 A GB2775669 A GB 2775669A GB 1218528 A GB1218528 A GB 1218528A
Authority
GB
United Kingdom
Prior art keywords
telomers
june
fluoroalkyl iodide
haloalkanes
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2775669A
Inventor
Walter Blochl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB1218528A publication Critical patent/GB1218528A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/272—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions
    • C07C17/278—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of only halogenated hydrocarbons

Abstract

1,218,528. Fluoroalkyl iodide telomers. W. BLOCHL. 2 June, 1969 [3 June, 1968], No. 27756/69. Addition to 1,096,687. Heading C2C. Fluoroalkyl iodide telomers of formula R(CF 2 CF 2 ) n I, in which n is at least one and R is a secondary perfluoropropyl, secondary hydroperfluoropropyl, secondary chloroperfluoropropyl, secondary bromoperfluoropropyl or secondary iodoperfluoropropyl group, the number of carbon atoms in the telomer not exceeding 27, are prepared by vapour phase reaction of tetrafluoroethylene and at least one mole excess of a compound RI at 340-450‹ at atmospheric or subatmospheric pressure with reaction times of 3 seconds to 10 minutes under such conditions that at least part of the taxogen remains unconverted. The process is preferably continuous, with the product being cooled and the lower telomers separated and recycled to the reactor.
GB2775669A 1968-06-03 1969-06-02 Preparation of haloalkanes Expired GB1218528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73377568A 1968-06-03 1968-06-03

Publications (1)

Publication Number Publication Date
GB1218528A true GB1218528A (en) 1971-01-06

Family

ID=24949064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2775669A Expired GB1218528A (en) 1968-06-03 1969-06-02 Preparation of haloalkanes

Country Status (7)

Country Link
AT (1) AT288337B (en)
BE (1) BE734009A (en)
CA (1) CA937947A (en)
CH (1) CH546211A (en)
FR (1) FR2010047A6 (en)
GB (1) GB1218528A (en)
NL (1) NL6908329A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117055A (en) * 1989-03-31 1992-05-26 Agency Of Industrial Science And Technology Method for direct conversion of fluorocarbonyl group into halogenides
US5908966A (en) * 1997-10-14 1999-06-01 E. I. Du Pont De Nemours And Company Thermal process for the preparation of a telomeric alkyl iodide
EP1422211A1 (en) * 2002-11-21 2004-05-26 Dupont Dow Elastomers L.L.C. Process for manufacturing diiodoperfluoroalkanes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117055A (en) * 1989-03-31 1992-05-26 Agency Of Industrial Science And Technology Method for direct conversion of fluorocarbonyl group into halogenides
US5908966A (en) * 1997-10-14 1999-06-01 E. I. Du Pont De Nemours And Company Thermal process for the preparation of a telomeric alkyl iodide
EP1422211A1 (en) * 2002-11-21 2004-05-26 Dupont Dow Elastomers L.L.C. Process for manufacturing diiodoperfluoroalkanes
US6825389B2 (en) 2002-11-21 2004-11-30 Dupont Dow Elastomers Llc Process for manufacturing diiodoperfluoroalkanes

Also Published As

Publication number Publication date
CH546211A (en) 1974-02-28
FR2010047A6 (en) 1970-02-13
BE734009A (en) 1969-11-17
CA937947A (en) 1973-12-04
AT288337B (en) 1971-02-25
NL6908329A (en) 1969-12-05

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