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| | Cyanoacetylene Basic information |
| | Cyanoacetylene Chemical Properties |
| Melting point | 5℃ | | Boiling point | 42.5℃ | | density | 0.8159 g/cm3 (17 ºC) | | refractive index | 1.40072 (17℃) | | Fp | -30.5±12.6℃ | | solubility | sol benzene, EtOH, acetonitrile, cyclohexane, toluene, ether. |
| | Cyanoacetylene Usage And Synthesis |
| Chemical Properties | Liquid. Melting point 5°C, boiling point 42.5°C, relative density 0.8167 (17/4°C), refractive index 1.3868. Soluble in ethanol, insoluble in water. Easy to decompose when exposed to air and light. | | Uses | 2-Propynenitrile, is the simplest cyanopolyyne. It has been detected by spectroscopic methods in interstellar clouds, in the coma of comet Hale–Bopp and in the atmosphere of Saturn''s moon Titan, where it sometimes forms expansive fog-like clouds. | | Application | Cyanoacetylene can be used for nucleophilic conjugate additions to (Z)-olefins; Diels-Alder reactions, and dipolar cycloadditions with nitrones and diazo compounds. | | Preparation | Cyanoacetylene is not commercially available, but can be prepared on a several gram scale by the dehydration of propynamide (propiolamide) with Phosphorus(V) Oxide (eq 1). The reactants are well ground together under nitrogen, and upon subjection of the resulting solid mixture to high temperature treatment, propynenitrile is collected as a distillate in a receiver held at 5 °C.
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| | Cyanoacetylene Preparation Products And Raw materials |
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