4-(2,4-DIMETHYLPHENYL)-1-BUTENE

Base Information

• Chemical Name: 4-(2,4-DIMETHYLPHENYL)-1-BUTENE
• CAS No.: 190974-78-8
• Molecular Formula: C₁₂H₁₆
• Molecular Weight: 160.259
• Hs Code.: 2902909090
• Mol file: 190974-78-8.mol

Synonyms:4-(2,4-DIMETHYLPHENYL)-1-BUTENE

Chemical Property of 4-(2,4-DIMETHYLPHENYL)-1-BUTENE

Chemical Property:

• Vapor Pressure: 0.133mmHg at 25°C
• Boiling Point: 225°C at 760 mmHg
• Flash Point: 83.5°C
• PSA: 0.00000
• Density: 0.876g/cm³
• LogP: 3.42200

Purity/Quality:

4-(2,4-Dimethylphenyl)-1-butene 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4-(2,4-DIMETHYLPHENYL)-1-BUTENE

There total 3 articles about 4-(2,4-DIMETHYLPHENYL)-1-BUTENE 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:

2,4-dimethyl-benzyl chloride (824-55-5) + allylmagnesium bromide (1730-25-2) → 1-(but-3-en-1-yl)-2,4-dimethylbenzene (190974-78-8)

Guidance literature:

In diethyl ether; at 0 - 25 ℃; for 6h;

DOI:10.1021/ja971040e

Reference yield:

[1-(2,4-Dimethyl-phenyl)-meth-(E)-ylidene]-hydrazine + Allyl acetate (591-87-7) → 1-(but-3-en-1-yl)-2,4-dimethylbenzene (190974-78-8)

Guidance literature:

Allyl acetate; With bis(η3-allyl-μ-chloropalladium(II)); Tri(p-tolyl)phosphine; In tetrahydrofuran; for 0.5h; Schlenk technique; Sealed tube; Inert atmosphere;

[1-(2,4-Dimethyl-phenyl)-meth-(E)-ylidene]-hydrazine; With lithium tert-butoxide; In tetrahydrofuran; at 45 ℃; for 24h; chemoselective reaction; Schlenk technique; Sealed tube; Inert atmosphere;

DOI:10.1002/anie.201809112

Reference yield:

2,4-dimethylbenzaldehyde (15764-16-6) → 1-(but-3-en-1-yl)-2,4-dimethylbenzene (190974-78-8)

Guidance literature:

Multi-step reaction with 2 steps

1.1: hydrazine hydrate / tetrahydrofuran / 50 °C / Sealed tube; Inert atmosphere

2.1: bis(η3-allyl-μ-chloropalladium(II)); Tri(p-tolyl)phosphine / tetrahydrofuran / 0.5 h / Schlenk technique; Sealed tube; Inert atmosphere

2.2: 24 h / 45 °C / Schlenk technique; Sealed tube; Inert atmosphere

With bis(η3-allyl-μ-chloropalladium(II)); hydrazine hydrate; Tri(p-tolyl)phosphine; In tetrahydrofuran;

DOI:10.1002/anie.201809112

upstream raw materials:

2,4-dimethyl-benzyl chloride

allylmagnesium bromide

2,4-dimethylbenzaldehyde

Allyl acetate