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| | PHENYLPROPIOLALDEHYDE DIETHYL ACETAL Basic information |
| | 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.) | | Fp | >230 °F | | storage temp. | Sealed in dry,2-8°C | | Appearance | Colorless to light yellow Liquid | | BRN | 2049715 | | CAS DataBase Reference | 6142-95-6(CAS DataBase Reference) |
| Safety Statements | 24/25 | | WGK Germany | 3 |
| | 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 Preparation Products And Raw materials |
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