1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane

Base Information

• Chemical Name: 1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane
• CAS No.: 120446-31-3
• Molecular Formula: C₆₀H₄₀
• Molecular Weight: 760.978
• Mol file: 120446-31-3.mol

Synonyms:1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane

Chemical Property of 1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane

There total 6 articles about 1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane 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: 64.0%

1,1,6,6-tetraphenyl-1,2,3,4,5-hexapentaene (1674-16-4) → 1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane (120446-31-3)

Guidance literature:

With tetrakis(triphenylphosphine)nickel⁽⁰⁾; In N,N-dimethyl-formamide; at 25 ℃; for 0.5h;

DOI:10.1021/ja00192a051

Reference yield: 40.0%

1,1,6,6-tetraphenyl-1,2,3,4,5-hexapentaene (1674-16-4) → ((1E,5E)-1,6,6-triphenylhexa-1,5-dien-3-ynyl)benzene (97076-00-1) + 1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane (120446-31-3)

Guidance literature:

With tetrakis(triphenylphosphine)nickel⁽⁰⁾; In benzene; at 25 ℃; for 1h;

DOI:10.1021/ja00192a051

Reference yield:

1,1-diphenyl-2-propyn-1-ol (3923-52-2) → 1,2-bis(3,3-diphenylallenylidene)-3,4-bis(diphenylmethylene)cyclobutane (120446-31-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 73 percent / CuI; Et₃N / [PdCl₂(PPh₃)2] / 2 h / 85 °C

2: 68 percent / SnCl₂*2H₂O; HCl / diethyl ether / 0.5 h / -50 °C

With hydrogenchloride; copper(l) iodide; triethylamine; tin(ll) chloride; bis-triphenylphosphine-palladium(II) chloride; In diethyl ether; 1: Sonogashira coupling;

DOI:10.1246/bcsj.78.2188

upstream raw materials:

1,1,6,6-tetraphenyl-1,2,3,4,5-hexapentaene

benzophenone

1,1,6,6-tetraphenyl-2,4-hexadiyne-1,6-diol

1,1-diphenyl-2-propyn-1-ol