1,1,3,4-Tetramethyl-1-germa-3-cyclopentene

Base Information

• Chemical Name: 1,1,3,4-Tetramethyl-1-germa-3-cyclopentene
• CAS No.: 5764-66-9
• Molecular Formula: C8H16 Ge
• Molecular Weight: 184.805
• Mol file: 5764-66-9.mol

Synonyms:Germacyclopent-3-ene,1,1,3,4-tetramethyl- (7CI,8CI); 1,1,3,4-Tetramethylgermacyclopent-3-ene;1,2,4,4-Tetramethyl-4-germacyclopentene;2,5-Dihydro-1,1,3,4-tetramethyl-1H-germole; NSC 373781

Chemical Property of 1,1,3,4-Tetramethyl-1-germa-3-cyclopentene

Chemical Property:

• Vapor Pressure: 2.2mmHg at 25°C
• Boiling Point: 167.9°Cat760mmHg
• Flash Point: 44.9°C
• PSA: 0.00000
• Density: g/cm³
• LogP: 3.04480

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1,1,3,4-Tetramethyl-1-germa-3-cyclopentene

There total 9 articles about 1,1,3,4-Tetramethyl-1-germa-3-cyclopentene 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: 90.0%

7,7-dimethyl-1,4,5,6-tetraphenyl-2,3-benzo-7-germanorbornadiene (76054-64-3) + 2,3-dimethyl-buta-1,3-diene (513-81-5) → 1,2,3,4-tetraphenylnaphthalene (751-38-2) + 1,1,3,4-tetramethyl-1-germacyclopenta-3-ene (5764-66-9)

Guidance literature:

In cyclohexane; Irradiation (UV/VIS); irradn. with a low-pressure mercury lamp (254 nm) for 5h at room temp.; distn. under reduced pressure, purifn. by GLC;

Reference yield: 72.0%

(trimethylsilyl)dimethylphenylgermane (37899-63-1) + 2,3-dimethyl-buta-1,3-diene (513-81-5) → o-(trimethylsilyl)(2,3-dimethyl-3-butenyl)dimethylgermylbenzene (134847-68-0) + trimethylphenylsilane (768-32-1) + 1,1,3,4-tetramethyl-1-germacyclopenta-3-ene (5764-66-9)

Guidance literature:

In pentane; Irradiation (UV/VIS); (N2), 1 h irradiated; gas chromatography; elem. anal., NMR, mass. spectra;

DOI:10.1021/om00054a046

Reference yield: 36.0%

1,3-diphenylhexamethyltrigermane (22702-73-4) + 2,3-dimethyl-buta-1,3-diene (513-81-5) → 1,1,2,2-tetramethyl-1,2-diphenyldigermane (22702-72-3) + 1,1,3,4-tetramethyl-1-germacyclopenta-3-ene (5764-66-9)

Guidance literature:

In cyclohexane; Irradiation (UV/VIS); 110-W low pressure Hg arc, under Ar, room temp.; GC-MS; Kinetics;

DOI:10.1016/0022-328X(89)87334-6

upstream raw materials:

phenylpentamethyldigermane

2,3-dimethyl-buta-1,3-diene

1,3-diphenylhexamethyltrigermane

PhCHCHGeMe₂GeMe₃

Refernces

• 1、 Mochida, Kunio,Kikkawa, Haruhiko,Nakadaira, Yasuhiro. "Photochemical reactions of aryl-substituted catenates of group 4B elements, PhMe2E-E'Me3 (E, E' = Si and Ge). Formation of a radical pair". . p. 9 - 19. Retrieved 2007/10/02.
• 2、 Bobbitt, Kevin L.,Maloney, Vincent M.,Gaspar, Peter P.. "New photochemical routes to germylenes and germenes and kinetic evidence concerning the germylene-diene addition mechanism". . p. 2772 - 2777. Retrieved 2008/10/08.