TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL)

Base Information

• Chemical Name: TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL)
• CAS No.: 20635-30-7
• Molecular Formula: C16H26O4
• Molecular Weight: 282.38
• Hs Code.: 2909309090
• Mol file: 20635-30-7.mol

Synonyms:TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL);terephthalaldehydebis(diethylacetal)96+%;1,4-Bis(diethoxyMethyl)benzene

Chemical Property of TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL)

Chemical Property:

• Refractive Index: 1.4720 to 1.4750
• PSA: 36.92000
• Density: 0.99
• LogP: 3.82980
• Storage Temp.: 2-8°C

Purity/Quality:

98% ^*data from raw suppliers

Terephthalaldehyde Bis(diethyl Acetal) >96.0%(GC) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL)

There total 4 articles about TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL) 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: 99.0%

4-(dibromomethyl)benzenecarbaldehyde + orthoformic acid triethyl ester (122-51-0) → 1,4-bis(diethoxymethyl)benzene (20635-30-7)

Guidance literature:

With zinc(II) chloride; at 80 ℃; for 2h;

DOI:10.1134/S1070363217120052

Reference yield: 68.0%

1,4-bis(dibromomethyl)benzene (1592-31-0) + orthoformic acid triethyl ester (122-51-0) → 1,4-bis(diethoxymethyl)benzene (20635-30-7)

Guidance literature:

With zinc(II) chloride; at 80 ℃; for 4.5h;

DOI:10.1134/S1070363216090279

Reference yield:

terephthalaldehyde, (623-27-8) + orthoformic acid triethyl ester (122-51-0) → 1,4-bis(diethoxymethyl)benzene (20635-30-7)

Guidance literature:

With ammonium chloride; In ethanol;

upstream raw materials:

terephthalaldehyde,

orthoformic acid triethyl ester

1,4-bis(dibromomethyl)benzene

Downstream raw materials:

1,4-bis(2-formylethenyl)benzene

styrene-α,4-dicarbaldehyde

tetraethyl 2,2'-(benzene-1,4-diyl)bis[(4R,5R)-1,3-dioxolane-4,5-dicarboxylate]

C₄₈H₅₀O₈

Refernces

• 1、 Gazizov,Ivanova, S. Yu.,Bashkirtseva, N. Yu.,Khairullina,Khairullin,Gazizova. "Synthesis of aromatic aldehyde acetals from (dibromomethyl)arenes". . p. 1230 - 1233. Retrieved 2017/12/02.
• 2、 Gazizov,Ivanova, S. Yu.,Ibragimov, Sh. N.,Gazizova,Khairullin,Medvedeva. "New synthetic method for preparation of functionally substituted benzenecarbaldehyde acetals". . p. 2132 - 2134. Retrieved 2016/10/24.