20635-30-7

Basic information

• Product Name: TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL)
• Synonyms: TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL);terephthalaldehydebis(diethylacetal)96+%;1,4-Bis(diethoxyMethyl)benzene
• CAS NO: 20635-30-7
• Molecular Formula: C₁₆H₂₆O₄
• Molecular Weight: 282.38
• Mol File: 20635-30-7.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• Density: 0.99
• Refractive Index: 1.4720 to 1.4750
• Storage Temp.: 2-8°C
• CAS DataBase Reference: TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL)(CAS DataBase Reference)
• NIST Chemistry Reference: TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL)(20635-30-7)
• EPA Substance Registry System: TEREPHTHALALDEHYDE BIS(DIETHYL ACETAL)(20635-30-7)

Safety Data

• Hazardous Substances Data: 20635-30-7(Hazardous Substances Data)

Usage

General Description

Terephthalaldehyde bis(diethyl acetal) is a chemical compound commonly used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other fine chemicals. It is a colorless liquid with a slightly fruity odor, and it is soluble in organic solvents such as ethanol and acetone. Terephthalaldehyde bis(diethyl acetal) is known for its use in the production of high-performance polymers and as a reagent in organic synthesis. It is also used as a fragrance ingredient in perfumes and as a flavoring agent in the food industry. Overall, this chemical compound has a wide range of applications in various industries due to its versatile properties.

Upstream product

• 1592-31-0 1,4-bis(dibromomethyl)benzene 
• 122-51-0 orthoformic acid triethyl ester 
• 623-27-8 terephthalaldehyde, 

Downstream Products

• 137585-08-1 tetraethyl 2,2'-(benzene-1,4-diyl)bis[(4R,5R)-1,3-dioxolane-4,5-dicarboxylate] 
• 77972-48-6 styrene-α,4-dicarbaldehyde 
• 3049-37-4 1,4-bis(2-formylethenyl)benzene 
• 101403-67-2 C₄₈H₅₀O₈ 

Relevant articles and documents

Synthesis of 4-(Dibromomethyl)benzaldehyde by Catalytic Debromophosphoryl- and Phosphonyloxylation of 1,4-Bis(dibromomethyl)benzene with Phosphorus(IV) Acid Methyl Esters and Its Properties

A new procedure has been developed for the simultaneous preparation of terephthalaldehyde and 4-(dibromomethyl)benzaldehyde by catalytic debromophosphoryl- and phosphonyloxylation of 1,4-bis- (dibromomethyl)benzene with P(IV) acid methyl esters. The reaction of 4-(dibromomethyl)benzaldehyde with ortho esters in the presence of sulfuric acid gave the corresponding acetals, whereas in the presence of ZnCl2 terephthalaldehyde bis-acetals were formed. 4-(Dibromomethyl)benzaldehyde and its acetal were converted to methyl 4-(dibromomethyl)- and 4-(dimethoxymethyl)benzoates which were phosphorylated by the action of chlorophosphines, as well as by successive treatment with phosphorus(III) chloride and P(III) esters.

Synthesis of aromatic aldehyde acetals from (dibromomethyl)arenes

Zinc chloride-catalyzed double debromoalkoxylation of (dibromomethyl)arenes on treatment with trialkyl orthoformates resulted in the corresponding aromatic aldehyde acetals. On the first step, α-brominated ether is formed, which undergoes the second debro