PHENYLPROPIOLALDEHYDE DIETHYL ACETAL Chemical Properties

Boiling point:

99-100 °C2 mm Hg(lit.)

Density 

0.991 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.517(lit.)

Flash point:

>230 °F

storage temp. 

Sealed in dry,2-8°C

BRN 

2049715

CAS DataBase Reference

6142-95-6(CAS DataBase Reference)

Safety Information

Safety Statements 

24/25

WGK Germany 

3

MSDS

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PHENYLPROPIOLALDEHYDE DIETHYL ACETAL Usage And Synthesis

Chemical Properties

CLEAR COLOURLESS TO YELLOW LIQUID

Preparation

To a flask equipped with a 12-in. Vigreux column and distillation head is added 74.0 gm (0.50 mole) of triethyl orthoformate, 51.0 gm (0.50 mole)of phenylacetylene, and 3.0 gm of zinc iodide* catalyst. The flask must first be heated to 135°C before ethanol starts to reflux. The ethanol distillate (26.4 gm) boiling at 65°-88°C is removed over a period of 1 hr while the temperature of the reaction mixture is raised to 200°-210°C. The reaction mixture is cooled and filtered, the precipitate washed with 5 ml of ether and the ether combined with the filtrate is distilled to afford 73-80 gm (72-78%), b.p. 99-100°C (2.0 mm Hg). The IR spectrum showed absorption at 4.5-μ (—C=C—) and 9.0-μ region ( - C — O ).

Synthesis Reference(s)

The Journal of Organic Chemistry, 49, p. 2031, 1984 DOI: 10.1021/jo00185a045

PHENYLPROPIOLALDEHYDE DIETHYL ACETAL(6142-95-6)Related Product Information

• Phenylpropiolaldehyde
• PROPIONALDEHYDE DIETHYL ACETAL
• METHYL PROPARGYL ETHER
• 3-PHENYL-2-PROPYN-1-OL
• 2-Butyn-1-ol
• PROPARGYLALDEHYDE DIETHYL ACETAL
• 1-PHENYL-1-PROPYNE
• PHENYLPROPIOLALDEHYDE DIETHYL ACETAL
• 2-BUTYNAL DIETHYL ACETAL
• Propargyl alcohol
• ETHYNYL-BENZENE