GB668561A - Improvements in or relating to the manufacture of tetraalykllead - Google Patents

Improvements in or relating to the manufacture of tetraalykllead

Info

Publication number
GB668561A
GB668561A GB12560/49A GB1256049A GB668561A GB 668561 A GB668561 A GB 668561A GB 12560/49 A GB12560/49 A GB 12560/49A GB 1256049 A GB1256049 A GB 1256049A GB 668561 A GB668561 A GB 668561A
Authority
GB
United Kingdom
Prior art keywords
alkyl
bromide
magnesium
iodide
alkyl halide
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
GB12560/49A
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.)
Ethyl Corp
Original Assignee
Ethyl Corp
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 Ethyl Corp filed Critical Ethyl Corp
Publication of GB668561A publication Critical patent/GB668561A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
    • C07F7/24—Lead compounds

Abstract

Tetra-alkyl lead is prepared by heating a magnesium-lead alloy with an alkyl halide at an elevated temperature in the presence of a catalyst comprising an aliphatic ether, a substituted amine having no hydrogen attached to the amino nitrogen atom, a hydrocarbon substituted ammonium iodide or an aromatic base containing nitrogen in heterocyclic combination or mixtures thereof. A number of specific examples of catalysts that may be used are given. When the alkyl halide is an alkyl chloride, an alkyl iodide may be employed as a promoter for the catalyst. The magnesium-lead alloy may contain from 18 to 22 per cent by weight magnesium. Reaction temperatures may vary up to 150 DEG C., the reaction being preferably carried out at superatmospheric pressure. A stoichiometric excess of the alkyl halide may be used. A summary of experiments is given giving the reaction conditions and results obtained when using ethyl chloride and bromide, methyl bromide, isopropyl bromide, isobutyl bromide and n-butyl iodide with various catalysts.
GB12560/49A 1948-05-29 1949-05-11 Improvements in or relating to the manufacture of tetraalykllead Expired GB668561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30191A US2535235A (en) 1948-05-29 1948-05-29 Manufacture of tetraalkyllead

Publications (1)

Publication Number Publication Date
GB668561A true GB668561A (en) 1952-03-19

Family

ID=21852993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12560/49A Expired GB668561A (en) 1948-05-29 1949-05-11 Improvements in or relating to the manufacture of tetraalykllead

Country Status (4)

Country Link
US (1) US2535235A (en)
DE (1) DE878645C (en)
FR (1) FR986329A (en)
GB (1) GB668561A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457288A (en) * 1966-04-13 1969-07-22 Ppg Industries Inc Process for manufacturing tetraorganolead compounds

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2000069A (en) * 1932-05-24 1935-05-07 Du Pont Preparation of lead alkyls

Also Published As

Publication number Publication date
DE878645C (en) 1953-04-23
FR986329A (en) 1951-07-30
US2535235A (en) 1950-12-26

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