Chemical intermediate

623-27-8

  • Product Name：Terephthalaldehyde
  • Molecular Formula：C8H6O2
  • Specifications：99%
  • Molecular Weight：134.134
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Product Details;

CasNo： 623-27-8

Molecular Formula： C8H6O2

Appearance： white to light yellow crystalline powder

China cas 623-27-8 manufacturer wholesale Terephthalaldehyde at affordable price

  • Molecular Formula:C8H6O2
  • Molecular Weight:134.134
  • Appearance/Colour:white to light yellow crystalline powder 
  • Vapor Pressure:0.027mmHg at 25°C 
  • Melting Point:114-116 °C(lit.) 
  • Refractive Index:1.622 
  • Boiling Point:246.5 °C at 760 mmHg 
  • Flash Point:101.7 °C 
  • PSA：34.14000 
  • Density:1.189 g/cm3 
  • LogP:1.31160 

Terephthalaldehyde(Cas 623-27-8) Usage

Synthesis Reference(s)

Organic Syntheses, Coll. Vol. 3, p. 788, 1955Tetrahedron Letters, 36, p. 2285, 1995 DOI: 10.1016/0040-4039(95)00191-E

Purification Methods

Terephthalaldehyde [623-27-8] M 134.1, m 116o, b 245 -248o/771mm. Crystallise terephthalaldehyde from water. [Beilstein 7 IV 2140.]

InChI:InChI=1/C8H6O2/c9-5-7-1-2-8(6-10)4-3-7/h1-6H

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623-27-8 Process route

1,4-Divinylbenzene
105-06-6

1,4-Divinylbenzene

terephthalic acid
100-21-0

terephthalic acid

4-ethenylbenzoic acid
1075-49-6

4-ethenylbenzoic acid

4-vinyl-benzaldehyde
1791-26-0

4-vinyl-benzaldehyde

terephthalaldehyde,
623-27-8

terephthalaldehyde,

Conditions
Conditions Yield
With pyridine; dimethylsulfide; oxygen; ozone; Yield given. Multistep reaction; 1.) CH2Cl2, -78 deg C- -75 deg C, 5 hrs., 2.) CH2Cl2, r.t., 2 hrs.;
terephthaloyl chloride
100-20-9

terephthaloyl chloride

terephthalic acid
100-21-0

terephthalic acid

4-formylbenzoyl chloride
16173-52-7

4-formylbenzoyl chloride

terephthalaldehyde,
623-27-8

terephthalaldehyde,

benzaldehyde
100-52-7

benzaldehyde

4-Carboxybenzaldehyde
619-66-9

4-Carboxybenzaldehyde

Conditions
Conditions Yield
With hydrogen; thiourea; palladium on activated charcoal; In xylene; at 110 ℃; Product distribution; effects of catalyst support, solvents, kind of catalyst, and kind of modifier;
78 % Chromat.

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