(E)-but-2-enal

Base Information

• Chemical Name: (E)-but-2-enal
• CAS No.: 15798-64-8
• Molecular Formula: C4H6 O
• Molecular Weight: 70.091
• Hs Code.: 2912190090
• Mol file: 15798-64-8.mol

Synonyms:2-Butenal,(Z)-; Crotonaldehyde, (Z)- (8CI); (Z)-2-Butenal; (Z)-Crotonaldehyde; Ethylene,1-formyl-2-methyl-, cis-; cis-2-Butenal; cis-Crotonal; cis-Crotonaldehyde

Chemical Property of (E)-but-2-enal

Chemical Property:

• Melting Point: -74°C
• Refractive Index: 1.4365
• Boiling Point: 104°Cat760mmHg
• Flash Point: 4.6°C
• PSA: 17.07000
• Density: 0.819g/cm³
• LogP: 0.76140

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of (E)-but-2-enal

There total 13 articles about (E)-but-2-enal 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: 88.0%

cis-2-buten-1-ol (4088-60-2,542-72-3) → cis-crotonaldehyde (15798-64-8,4170-30-3)

Guidance literature:

With barium permanganate; for 10h; Ambient temperature;

Reference yield: 79.0%

4-methylsulfinyl-4-methylthio-1-butene (68691-89-4) → cis-crotonaldehyde (15798-64-8,4170-30-3)

Guidance literature:

With sulfuric acid; In ethanol; for 96h; Ambient temperature;

DOI:10.1021/ja00526a078

Reference yield:

3-hydroxy-5-methyl-1H-pyrazole (4344-87-0) → trans-Crotonaldehyde (123-73-9,4170-30-3) + methyl propargyl alcohol (764-01-2) + cis-crotonaldehyde (15798-64-8,4170-30-3)

Guidance literature:

at 600 ℃; Product distribution; Mechanism; various pyrazolines;

DOI:10.1039/a807669c

upstream raw materials:

(2E,4E)-hexa-2,4-diene

(E,Z)-2,4-hexadiene

cis-2-buten-1-ol

4-methylsulfinyl-4-methylthio-1-butene

Downstream raw materials:

(Z)-2-bromobut-2-enal

3-(5-methyl-2-furyl)butyraldehyde

3-methyl-4-nitrobutyraldehyde

Refernces

• 1、 Childs et al.. "". . p. 5924,5925, 5930. Retrieved 1976.
• 2、 -. "Method for preparing Z-isomer by E-isomer of alpha, beta-nonsaturated carbonyl compound". Paragraph 0052; 0053. . Retrieved 2017/04/29.
• 3、 Yranzo, Gloria I.,Moyano, Elizabeth L.,Rozas, Isabel,Dardonville, Christophe,Elguero, Jose. "An experimental (flash vacuum pyrolysis) and theoretical study of the tautomerism of pyrazolinones at high temperatures". . p. 211 - 216. Retrieved 2007/10/03.