GB814708A - Process for the preparation of methyl magnesium compounds from dimethyl sulphate - Google Patents

Process for the preparation of methyl magnesium compounds from dimethyl sulphate

Info

Publication number
GB814708A
GB814708A GB37161/57A GB3716157A GB814708A GB 814708 A GB814708 A GB 814708A GB 37161/57 A GB37161/57 A GB 37161/57A GB 3716157 A GB3716157 A GB 3716157A GB 814708 A GB814708 A GB 814708A
Authority
GB
United Kingdom
Prior art keywords
dimethyl sulphate
magnesium
tetrahydropyran
tetrahydrofuran
diethylene glycol
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
GB37161/57A
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Societe des Usines Chimiques Rhone Poulenc SA
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 Rhone Poulenc SA, Societe des Usines Chimiques Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB814708A publication Critical patent/GB814708A/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
    • C07F3/00Compounds containing elements of Groups 2 or 12 of the Periodic Table
    • C07F3/02Magnesium compounds

Landscapes

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

Abstract

Dimethyl sulphate is reacted under substantially anhydrous conditions and at low temperature with magnesium in a solvent comprising tetrahydrofuran, tetrahydropyran or an alkyl derivative thereof, or a polyethylene glycol ether of formula R.(OCH2.CH2)vOR1 wherein R and R1 represent the same or different alkyl groups and n is an integer. Preferably R-R1 each contain not more than 4 carbon atoms and n is 2 or 3, e.g. diethylene glycol diethyl and dibutyl ethers. The reaction is carried out under a nitrogen atmosphere and it may be activated by an iodine crystal. Insoluble magnesium methyl sulphate is precipitated, usually not in large quantities. It may be eliminated by filtration or decantation. The product solution may be used in Grignard reactions without isolating the products. In the examples magnesium and dimethyl sulphate are reacted in (1) tetrahydrofuran, (2) tetrahydropyran and (3) diethylene glycol diethyl ether.
GB37161/57A 1956-12-06 1957-11-28 Process for the preparation of methyl magnesium compounds from dimethyl sulphate Expired GB814708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR814708X 1956-12-06

Publications (1)

Publication Number Publication Date
GB814708A true GB814708A (en) 1959-06-10

Family

ID=9266885

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37161/57A Expired GB814708A (en) 1956-12-06 1957-11-28 Process for the preparation of methyl magnesium compounds from dimethyl sulphate

Country Status (1)

Country Link
GB (1) GB814708A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5221499A (en) * 1991-05-18 1993-06-22 Th. Goldschmidt Ag Method for the preparation of dialkylmagnesium compounds by the reaction of magnesium hydride with an olefin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5221499A (en) * 1991-05-18 1993-06-22 Th. Goldschmidt Ag Method for the preparation of dialkylmagnesium compounds by the reaction of magnesium hydride with an olefin

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