1,2-diethynyl-1,1,2,2-tetramethyldigermane

Base Information

• Chemical Name: 1,2-diethynyl-1,1,2,2-tetramethyldigermane
• CAS No.: 158266-30-9
• Molecular Formula: C₈H₁₄Ge₂
• Molecular Weight: 255.379
• Mol file: 158266-30-9.mol

Synonyms:1,2-diethynyl-1,1,2,2-tetramethyldigermane

Chemical Property of 1,2-diethynyl-1,1,2,2-tetramethyldigermane

Chemical Property:

Purity/Quality:

Safty Information:

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MSDS Files:

Useful:

Technology Process of 1,2-diethynyl-1,1,2,2-tetramethyldigermane

There total 1 articles about 1,2-diethynyl-1,1,2,2-tetramethyldigermane 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: 86.0%

1,2-dichlorotetramethyldigermane (22702-77-8) + acetylenemagnesium bromide (4301-14-8) → 1,2-diethynyl-1,1,2,2-tetramethyldigermane (158266-30-9)

Guidance literature:

In tetrahydrofuran; Ar-atmosphere; addn. of germane to Grignard reagent (ice bath); addn. of water and Et2O, washing org. layer (water), drying (Na2SO4), evapn., distn. (reduced pressure);

DOI:10.1016/0022-328X(95)00307-C

Reference yield: 44.0%

1,2-diethynyl-1,1,2,2-tetramethyldigermane (158266-30-9) + 1,2-dichlorotetramethyldigermane (22702-77-8) → 3,3,4,4,7,7,8,8-octamethyl-3,4,7,8-tetragermacycloocta-1,5-diyne (158266-22-9)

Guidance literature:

With EtMgBr; In tetrahydrofuran; elem. anal.;

DOI:10.1246/cl.1994.1439

Reference yield: 44.0%

1,2-diethynyl-1,1,2,2-tetramethyldigermane (158266-30-9) + 1,2-dichlorotetramethyldigermane (22702-77-8) → 3,3,4,4,7,7,8,8-octamethyl-3,4-disila-7,8-digermacycloocta-1,5-diyne (158266-23-0)

Guidance literature:

With EtMgBr; In tetrahydrofuran; Ar-atmosphere; addn. of EtMgBr (from Mg an EtBr) to ethynyldigermane (over 30 min, room temp.), stirring for 1 h, slow simultaneous addn. with chlorodigermane soln. to excess THF (over 5 h at room temp.), stirring for 15 h; addn. of dild. HCl and Et2O, washing org. layer (water), drying (Na2SO4), evapn., sublimation (110-120°C/0.15 Torr); elem. anal.;

DOI:10.1016/0022-328X(95)00307-C

upstream raw materials:

1,2-dichlorotetramethyldigermane

acetylenemagnesium bromide

Downstream raw materials:

3,3,4,4,7,7,8,8-octamethyl-3,4-disila-7,8-digermacycloocta-1,5-diyne

3,3,4,4,7,7,8,8-octamethyl-3,4,7,8-tetragermacycloocta-1,5-diyne