1,4-Etheno-2,3-benzodigermin, 1,2,3,4-tetrahydro-2,2,3,3-tetramethyl-1,4-diphenyl-

Base Information

• Chemical Name: 1,4-Etheno-2,3-benzodigermin, 1,2,3,4-tetrahydro-2,2,3,3-tetramethyl-1,4-diphenyl-
• CAS No.: 84784-54-3
• Molecular Formula: C26H28Ge2
• Molecular Weight: 485.688
• Mol file: 84784-54-3.mol

Synonyms:

Chemical Property of 1,4-Etheno-2,3-benzodigermin, 1,2,3,4-tetrahydro-2,2,3,3-tetramethyl-1,4-diphenyl-

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1,4-Etheno-2,3-benzodigermin, 1,2,3,4-tetrahydro-2,2,3,3-tetramethyl-1,4-diphenyl-

There total 3 articles about 1,4-Etheno-2,3-benzodigermin, 1,2,3,4-tetrahydro-2,2,3,3-tetramethyl-1,4-diphenyl- 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: 46.0%

1,1,2,2-tetramethyl-3,6-diphenyl-1,2-digermacyclohexadiene (84784-55-4) → 1,4-diphenyl-2,3-benzo-7,7,8,8-tetramethyl-7,8-digermabicyclo[2.2.2]octadiene (84784-54-3) + bisbenzocyclobutene (259-79-0) + 1,4-diphenylnaphthalene (796-30-5)

Guidance literature:

With lead(IV) acetate; 1H-1,2,3-benzotriazol-1-amine; In dichloromethane; at -78°C; flash chromy. (benzene/hexane=1/8); N2 pressure; elem. anal.;

DOI:10.1246/cl.1982.1855

Reference yield: 28.0%

1,1,2,2-tetramethyl-3,6-diphenyl-1,2-digermacyclohexadiene (84784-55-4) + 1H-1,2,3-benzotriazol-1-amine (1614-12-6) → 1,4-diphenyl-2,3-benzo-7,7,8,8-tetramethyl-7,8-digermabicyclo<2,2,2>octadiene (84784-54-3)

Guidance literature:

With lead(IV) acetate; In dichloromethane; addn. of Pb(OAc)4 soln. in CH2Cl2 to a mixt. of germanium compd. and aminobenzotriazole in CH2Cl2 at -78 °C during 40 min; filtration through SiO2 (Wako gel C 200), washing with C6H6, evapn., rapid chromy (SiO2 treated with NEt3, washed with hexane), evapn.; elem. anal.;

DOI:10.1021/om000471u

Reference yield:

(E,E)-1,4-dilithio-1,4-diphenyl-1,3-butadiene (7641-46-5,55373-67-6) + 1H-1,2,3-benzotriazol-1-amine (1614-12-6) → bisbenzocyclobutene (259-79-0) + 1,4-diphenylnaphthalene (796-30-5) + 1,4-diphenyl-2,3-benzo-7,7,8,8-tetramethyl-7,8-digermabicyclo<2,2,2>octadiene (84784-54-3)

Guidance literature:

With lead(IV) acetate; 1,2-dichlorotetramethyldigermane; Yield given. Multistep reaction. Yields of byproduct given; 2.) CH₂Cl₂, -78 deg C;

DOI:10.1246/cl.1982.1855

upstream raw materials:

(E,E)-1,4-dilithio-1,4-diphenyl-1,3-butadiene

1H-1,2,3-benzotriazol-1-amine

1,1,2,2-tetramethyl-3,6-diphenyl-1,2-digermacyclohexadiene

Downstream raw materials:

2,3,5,6-dibenzo-7,7,8,8-tetramethyl-7,8-digermabicyclo[2.2.2]octadiene

1,4-diphenylnaphthalene

(CH₃)2SiC(C₆H₅)Ge(CH₃)2CHCHC(C₆H₅)Ge(CH₃)2

hexachloroethane

Refernces

• 1、 Sakurai, Hideki,Nakadaira, Yasuhiro,Tobita, Hiromi. "GENERATION AND TRAPPING OF TETRAMETHYLDIGERMENE". . p. 1855 - 1858. Retrieved 2007/10/02.