GB1232015A - - Google Patents

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Publication number
GB1232015A
GB1232015A GB1232015DA GB1232015A GB 1232015 A GB1232015 A GB 1232015A GB 1232015D A GB1232015D A GB 1232015DA GB 1232015 A GB1232015 A GB 1232015A
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GB
United Kingdom
Prior art keywords
preference
olefinic
bis
cyclic
terminal
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
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 filed Critical
Publication of GB1232015A publication Critical patent/GB1232015A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/08—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of carbon-to-carbon triple bonds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/03—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of non-aromatic carbon-to-carbon double bonds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/10—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of aromatic six-membered rings
    • C07C5/11—Partial hydrogenation

Abstract

1,232,015. Selective hydrogenation. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 July, 1968 [27 July, 1967], No. 34620/67. Heading C5E. The selective homogeneous hydrogenation of a hydrocarbon substrate containing two or more sites of unsaturation (see below) is effected in the presence of a solution comprising (1) a catalyst comprising a soluble compound of Rh, Pd, Os, Ir or Pt, and (2) an organic polar hydroxylic solvent. The hydrocarbon substrate may have two " sites of unsaturation " in the form of a single acetylenic bond, two olefinic bonds in a single molecule, or two different olefinically unsaturated molecules. The following types of selective hydrogenation may be effected; (a) terminal acetylenic in preference to terminal olefinic, e.g. of hexyne-1 in preference to octene-1; (b) terminal olefinic in preference to internal, cyclic or non-cyclic olefinic; e.g. pentene-1 in preference to pentene-2; octene-1 in preference to cyclooctadiene, and of vinyl cyclohexene to ethyl cyclohexene; (c) conjugated dienes in preference to straight chain and cyclic olefins, e.g. 1,3-hexadiene in preference to heptene-1; and (d) one of two double bonds in a conjugated diene, e.g. cyclopentadiene to cyclopentene. Suitable catalysts include tris-(triphenylphosphine)-RhCl, cis, bis-(tributylphosphine)-Pd (or Pt) Cl 2 , bis-(triphenylphosphine) (ethylene)- RhCl, 1,2-bis-(diphenylphosphine)-ethane carbonyl iridium bromide, and tris-(p-methoxyphenyl - dichlorophosphine) - IrCl 3 . Suitable hydroxylic solvents include methanol, ethanol, phenol and tert.-butylcatechol.
GB1232015D 1967-07-27 1967-07-27 Expired GB1232015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3462067 1967-07-27

Publications (1)

Publication Number Publication Date
GB1232015A true GB1232015A (en) 1971-05-19

Family

ID=10367920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1232015D Expired GB1232015A (en) 1967-07-27 1967-07-27

Country Status (4)

Country Link
BE (1) BE718703A (en)
DE (1) DE1793024B1 (en)
FR (1) FR1580556A (en)
GB (1) GB1232015A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6111145A (en) * 1984-06-28 1986-01-18 Toa Nenryo Kogyo Kk Hydrogenation catalyst of diolefins

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE253160C (en) * 1900-01-01
GB1085762A (en) * 1965-04-30 1967-10-04 Ici Ltd Complex organic iridium compounds and their use as catalysts
GB1130743A (en) * 1965-06-11 1968-10-16 Ici Ltd Organo-iridium complexes

Also Published As

Publication number Publication date
BE718703A (en) 1969-01-27
FR1580556A (en) 1969-09-05
DE1793024B1 (en) 1972-03-09

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees