1,5-Diphenyl-2-pentene

Base Information

• Chemical Name: 1,5-Diphenyl-2-pentene
• CAS No.: 40939-59-1
• Molecular Formula: C17H18
• Molecular Weight: 222.33
• Mol file: 40939-59-1.mol

Synonyms:cis/trans-1,5-Diphenylpent-2-en;1,5-Diphenyl-2-penten;1,5-diphenyl-pent-2-ene;1,5-Diphenylpent-2-en;1,5-Diphenyl-pent-2-en;

Chemical Property of 1,5-Diphenyl-2-pentene

Chemical Property:

• PSA: 0.00000
• LogP: 4.41810

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 1,5-Diphenyl-2-pentene

There total 26 articles about 1,5-Diphenyl-2-pentene 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: 27.0%

phenylacetaldehyde (122-78-1) + (3-phenylpropyl)triphenylphosphonium bromide (7484-37-9) → pent-2-ene-1,5-diyldibenzene (40939-59-1)

Guidance literature:

(3-phenylpropyl)triphenylphosphonium bromide; With n-butyllithium; In tetrahydrofuran; at -20 ℃; for 0.833333h; Inert atmosphere; Schlenk technique;

phenylacetaldehyde; In tetrahydrofuran; at -20 - 20 ℃; for 18h; Schlenk technique; Inert atmosphere;

DOI:10.1021/acs.orglett.9b04305

Reference yield: 20.0%

1,5‐diphenyl‐3‐fluoro‐pentane → pent-2-ene-1,5-diyldibenzene (40939-59-1) + 1,5‐diphenyl‐3‐[2H]‐pentane

Guidance literature:

With 2,2,6,6-tetramethyl-piperidine; tris(pentafluorophenyl)borate; deuterium; In dichloromethane; at 20 ℃; for 16h; under 900.09 Torr; regiospecific reaction; Inert atmosphere;

DOI:10.1002/jlcr.3782

Reference yield:

phenylzinc(II) bromide (38111-44-3) + 1-(2-phenylethyl)prop-2-en-1-yl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl carbonate (569672-70-4) → pent-2-ene-1,5-diyldibenzene (40939-59-1) + pent-4-ene-1,3-diyldibenzene (61141-97-7)

Guidance literature:

With Rh(ethylene)2(hydrotris(pyrazolyl)borate); 1,5-diphenyl-1,4-pentadiene-3-one; lithium bromide; In diethyl ether; at 0 ℃; for 0.25h;

DOI:10.1021/ja035216q

upstream raw materials:

1,5-diphenylpentan-3-ol

1,5-diphenylpentan-2-ol

(1E,4E)-3-methoxy-1,5-diphenyl-1,4-pentadiene

phenylzinc(II) bromide

Downstream raw materials:

1,5-diphenylpentane

(E)-β-(3-phenyl-1-propyl)styrene

1,5-dicyclohexylpentane

Refernces

• 1、 Pal, Debasis,Wright, Timothy B.,O'Connor, Ryan,Evans, P. Andrew. "Regio- and Diastereoselective Rhodium-Catalyzed Allylic Substitution with Unstabilized Benzyl Nucleophiles". supporting information. p. 2987 - 2992. Retrieved 2020/12/09.
• 2、 Bro?, B?etislav,Marek, Ale?. "Tritiodefluorination of alkyl C–F groups". . p. 743 - 750. Retrieved 2019/07/31.