GB899558A - Improvements in or relating to chemical processes - Google Patents

Improvements in or relating to chemical processes

Info

Publication number
GB899558A
GB899558A GB22186/59A GB2218659A GB899558A GB 899558 A GB899558 A GB 899558A GB 22186/59 A GB22186/59 A GB 22186/59A GB 2218659 A GB2218659 A GB 2218659A GB 899558 A GB899558 A GB 899558A
Authority
GB
United Kingdom
Prior art keywords
sodium borohydride
liquid
major component
dichloroborane
linear
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
GB22186/59A
Inventor
Keith Borer
Douglas Sinclair Hamilton
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB22186/59A priority Critical patent/GB899558A/en
Publication of GB899558A publication Critical patent/GB899558A/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
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/027Organoboranes and organoborohydrides
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B6/00Hydrides of metals including fully or partially hydrided metals, alloys or intermetallic compounds ; Compounds containing at least one metal-hydrogen bond, e.g. (GeH3)2S, SiH GeH; Monoborane or diborane; Addition complexes thereof
    • C01B6/06Hydrides of aluminium, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, bismuth or polonium; Monoborane; Diborane; Addition complexes thereof
    • C01B6/10Monoborane; Diborane; Addition complexes thereof
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)

Abstract

A process for carrying out reactions in which sodium borohydride is a reactant comprises using as a reaction medium a liquid, a minor proportion of which comprises one or more linear polyethers and a major component of which is a liquid in which sodium borohydride is substantially insoluble. The linear polyether may be derived from diethylene, triethylene and tetraethylene glycols or di-, tri- and tetra-1:2-propylene glycols, dialkyl ethers of diethylene glycol, e.g. the dimethyl ether, being preferred. Preferably the linear polyether constitutes 1-20% by weight of the major component. The major component may be more volatile than the linear polyether component and may have a boiling point below 120 DEG C. Specified major components are dimethyl ether, diethyl ether, tetrahydrofuran and tetrahydropyran and mixtures thereof, dioxan, hydrocarbons and halogenated hydrocarbons. If desired the reactants may be brought together in the liquid which is the major component and thereafter the linear polyether may be added thereto. In examples the use of sodium borohydride is described for the preparation of (1) diborane, (2) dichloroborane and (3) trimethylamine dichloroborane. Specification 873,267 is referred to.ALSO:A process for carrying out reactions in which sodium borohydride is a reactant comprises using as a reaction medium a liquid, a minor proportion of which comprises one or more linear polyethers and a major component of which is a liquid in which sodium borohydride is substantially insoluble. The linear polyether may be derived from diethylene, triethylene and tetraethylene glycols or di-, tri- and tetra-1 : 2-propylene glycols, dialkyl ethers of diethylene glycol, e.g. the dimethyl ether, being preferred. The major component of the liquid reaction medium may be a mono-ether, e.g. dimethyl or diethyl ether, tetrahydrofuran and tetrahydropyran, and mixtures thereof or dioxan or a hydrocarbon, such as a saturated aliphatic or aromatic hydrocarbon, or a petroleum fraction, or a halogenated hydrocarbon. Specified reactions involving sodium borohydride are (1) with boron trifluoride to produce diborane, (ii) with the appropriate quantity of boron trichloride to give etherates of partially chlorinated boranes and (iii) those reactions involving esters, aldehydes, ketones and ethylenic compounds. Examples describe the use of sodium borohydride to produce dichloroborane etherate which is reacted with trimethylamine to give trimethylamine dichloroborane. Specification 873,267 is referred to.
GB22186/59A 1959-06-29 1959-06-29 Improvements in or relating to chemical processes Expired GB899558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22186/59A GB899558A (en) 1959-06-29 1959-06-29 Improvements in or relating to chemical processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22186/59A GB899558A (en) 1959-06-29 1959-06-29 Improvements in or relating to chemical processes

Publications (1)

Publication Number Publication Date
GB899558A true GB899558A (en) 1962-06-27

Family

ID=10175341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22186/59A Expired GB899558A (en) 1959-06-29 1959-06-29 Improvements in or relating to chemical processes

Country Status (1)

Country Link
GB (1) GB899558A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153672A (en) * 1978-07-21 1979-05-08 Union Carbide Corporation Synthesis of tetradecahydroundecaborate (-1) from borohydride ion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153672A (en) * 1978-07-21 1979-05-08 Union Carbide Corporation Synthesis of tetradecahydroundecaborate (-1) from borohydride ion
EP0007599A1 (en) * 1978-07-21 1980-02-06 Union Carbide Corporation Synthesis of tetradecahydroundecaborate(-1) from borohydride ion

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