GB679418A - Improvements in or relating to the manufacture of silanes - Google Patents

Improvements in or relating to the manufacture of silanes

Info

Publication number
GB679418A
GB679418A GB20988/50A GB2098850A GB679418A GB 679418 A GB679418 A GB 679418A GB 20988/50 A GB20988/50 A GB 20988/50A GB 2098850 A GB2098850 A GB 2098850A GB 679418 A GB679418 A GB 679418A
Authority
GB
United Kingdom
Prior art keywords
lithium
organo
general formula
silanes
prepared
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
GB20988/50A
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.)
Dow Silicones UK Ltd
Original Assignee
Dow Corning Ltd
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 Dow Corning Ltd filed Critical Dow Corning Ltd
Publication of GB679418A publication Critical patent/GB679418A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/0803Compounds with Si-C or Si-Si linkages
    • C07F7/0825Preparations of compounds not comprising Si-Si or Si-cyano linkages
    • C07F7/0827Syntheses with formation of a Si-C bond
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F1/00Compounds containing elements of Groups 1 or 11 of the Periodic Table
    • C07F1/02Lithium compounds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/0803Compounds with Si-C or Si-Si linkages
    • C07F7/081Compounds with Si-C or Si-Si linkages comprising at least one atom selected from the elements N, O, halogen, S, Se or Te
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/12Organo silicon halides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/12Organo silicon halides
    • C07F7/121Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20
    • C07F7/122Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20 by reactions involving the formation of Si-C linkages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)

Abstract

The invention comprises organo-silicon compounds of the formula <FORM:0679418/IV (b)/1> where n is 1 or 2, and a process for the preparation of a silane of the general formula SiCla (CH3)bRc, wherein a has a value from 0 to 3, b has a value from 0 to 3, and c has a value from 1 to 4, and a+b+c equals 4, and R represents a trifluoromethyl substituted phenyl radical of the general formula <FORM:0679418/IV (b)/2> where n is 1 or 2, by reacting in the liquid phase a trifluoromethyl substituted phenyl lithium and silanes of the general formula SiCla + c(CH3)b, or mixtures thereof. Suitable silanes mentioned for the above process are silicon tetrachloride, methyltrichlorosilane, dimethyldichlorosilane and trimethylchlorosilane. In the examples the following compounds are prepared: tri - m - fluorotolylchlorosilane, isomeric bis - (hexafluoroxylyl) - dichlorosilanes, tris - (hexafluoroxylyl) - chlorosilanes, tetrakishexafluoroxylyl) - silanes, hexafluoroxylyl methyl dichlorosilanes and hexafluoroxylyltrimethylsilanes. Specification 655,105 is referred to. Organo-lithium compounds of the general formula <FORM:0679418/IV (b)/3> wherein n is 1 or 2, are prepared by reacting an alkyl lithium, e.g. a butyl- or amyl lithium with one or more of the required trifluoromethyl substituted benzenes or one or more of the required trifluoromethyl substituted phenyl halides. The organo-lithium compounds prepared in the examples correspond to the organo-silicon compounds prepared above.
GB20988/50A 1949-10-27 1950-08-24 Improvements in or relating to the manufacture of silanes Expired GB679418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US679418XA 1949-10-27 1949-10-27

Publications (1)

Publication Number Publication Date
GB679418A true GB679418A (en) 1952-09-17

Family

ID=22079420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20988/50A Expired GB679418A (en) 1949-10-27 1950-08-24 Improvements in or relating to the manufacture of silanes

Country Status (3)

Country Link
DE (1) DE859310C (en)
FR (1) FR1024248A (en)
GB (1) GB679418A (en)

Also Published As

Publication number Publication date
FR1024248A (en) 1953-03-30
DE859310C (en) 1952-12-11

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