Magnesium, dimethyl-

Base Information

• Chemical Name: Magnesium, dimethyl-
• CAS No.: 2999-74-8
• Molecular Formula: C2H6 Mg
• Molecular Weight: 54.3746
• Hs Code.: 2931900090
• DSSTox Substance ID: DTXSID0062765
• Wikipedia: Dimethylmagnesium,Magnesium carbide
• Mol file: 2999-74-8.mol

Synonyms:Magnesium, dimethyl-;2999-74-8;magnesium;carbanide;HSDB 362;magnesium carbide;C2H6Mg;UNII-3CAY272DHS;C2-H6-Mg;DTXSID0062765

Chemical Property of Magnesium, dimethyl-

Chemical Property:

• PSA: 0.00000
• LogP: 0.90060
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 54.0319919
• Heavy Atom Count: 3
• Complexity: 2.8

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Metals -> Metals, Organic Compounds
• Canonical SMILES: [CH3-].[CH3-].[Mg+2]

Technology Process of Magnesium, dimethyl-

There total 16 articles about Magnesium, dimethyl- which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 76.0%

lithium copper bromide + methylmagnesium chloride (676-58-4) → Mg(2+)*4Cu(1+)*6(CH3)(1-) = {(CH3)3Cu2}2Mg + Mg(2+)*2{(CH3)2Cu}(1-) = Mg{(CH3)2Cu}2 + dimethylmagnesium (2999-74-8)

Guidance literature:

In tetrahydrofuran; under N2, soln. of MeMgCl was added to a stirred soln. of LiCuBr2 at -10°C (ratio MeMgCl/LiCuBr2 = 2/1), stirred for 30 min at 0°C; not isolated;

Reference yield: 50.0%

methylmagnesium chloride (676-58-4) + copper(I) bromide (7787-70-4) → Mg(2+)*2{(CH3)2Cu}(1-) = Mg{(CH3)2Cu}2 + dimethylmagnesium (2999-74-8)

Guidance literature:

With N,N,N,N,N,N-hexamethylphosphoric triamide; In tetrahydrofuran; under N2, soln. of MeMgCl was added to a stirred suspn. of CuBr at -10°C (ratio MeMgCl/CuBr = 3/1), HMPT was also added, stirred for 30 min at 0°C; not isolated;

Reference yield: 50.0%

lithium copper bromide + methylmagnesium chloride (676-58-4) → Mg(2+)*2{(CH3)2Cu}(1-) = Mg{(CH3)2Cu}2 + dimethylmagnesium (2999-74-8)

Guidance literature:

In tetrahydrofuran; under N2, soln. of MeMgCl was added to a stirred soln. of LiCuBr2 at -10°C (ratio MeMgCl/LiCuBr2 = 3/1), stirred for 30 min at 0°C; not isolated;

upstream raw materials:

methyl magnesium iodide

methylmagnesium chloride

dimethyl sulfate

methyl iodide

Downstream raw materials:

tert-Amyl alcohol

1,1,2-triphenyl-2-propanol

1,2-diphenylpropan-1,2-diol

(RS)-2-phenyl-1-propanol

Refernces

The Relative Reactivity of Methylmagnesium Chloride and Dimethylmagnesium

10.1021/ja01874a043

The study investigates the relative reactivities of methylmagnesium chloride and dimethylmagnesium, focusing on their interactions with various carbonyl compounds in different solvents. Methylmagnesium chloride and dimethylmagnesium are the primary reagents used, with dioxane and isoamyl ether serving as solvents. The researchers found that dimethylmagnesium exhibits a preference for reacting with hydroxyl groups over carbonyl groups, forming ene-diol magnesium salts and resulting in less reactivity toward carbonyl functions compared to methylmagnesium chloride. This was demonstrated through reactions with benzoin, acetophenone, desoxybenzoin, and diphenylacetophenone, where dimethylmagnesium showed lower yields and incomplete reactions. The study also highlights the influence of solvents on reaction outcomes and suggests that the presence of dioxane does not alter the reaction course significantly.

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