(1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane

Base Information

• Chemical Name: (1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane
• CAS No.: 517877-22-4
• Molecular Formula: C₂₃H₃₇Br₂P
• Molecular Weight: 504.329
• Mol file: 517877-22-4.mol

Synonyms:(1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane

Chemical Property of (1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane

There total 1 articles about (1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane 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:

1,4-dibromo-butane (110-52-1) + [(dibromomethylene)(2,4,6-tri-tertbutylphenyl)phosphine] (100281-23-0) → (1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane (517877-22-4)

Guidance literature:

[(dibromomethylene)(2,4,6-tri-tertbutylphenyl)phosphine]; With n-butyllithium; In tetrahydrofuran; at -78 ℃;

1,4-dibromo-butane; In tetrahydrofuran; at -78 - 20 ℃;

DOI:10.1021/ol0341750

Reference yield: 15.0%

(1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane (517877-22-4) → cyclobutylidenemethylene-(2,4,6-tri-tert-butyl-phenyl)-phosphane + 1,7-bis(2,4,6-tri-tert-butylphenyl)-1,7-diphosphacyclododeca-2,8-diyne

Guidance literature:

With potassium tert-butylate; In tetrahydrofuran; at 20 ℃;

DOI:10.1021/ol0341750

Reference yield:

(1,5-dibromo-pentylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane (517877-22-4) → (5-bromo-pent-1-enylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane (517877-24-6)

Guidance literature:

With sodium ethanolate; In tetrahydrofuran; Heating;

DOI:10.1021/ol0341750

upstream raw materials:

1,4-dibromo-butane

[(dibromomethylene)(2,4,6-tri-tertbutylphenyl)phosphine]

Downstream raw materials:

(5-bromo-pent-1-enylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane