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A method for the flash vacuum thermolysis of non-volatile compounds

✍ Scribed by Joe Magrath; Franck W. Fowler

Publisher
Elsevier Science
Year
1988
Tongue
French
Weight
258 KB
Volume
29
Category
Article
ISSN
0040-4039

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✦ Synopsis

lhe evaporation of a substrate through a hot tube at low pmssure (Flash Vacuum Thermolysis, FVTJ is a simple although effective technique for performing thermal chemistry.t In contrast to thermal reactions performed in the condensed phase, the high dilution of the gas phase suppresses unwanted side reactions such as polymerization. Furthermore, the rapid cooling of the condensate to low temperature [Nz(I), -19aOl allows for the isolation of reactive compounds. lhe ability of Flash Vacuum 7hermolysis to prepare unusual molecular atrangementst as well as to probe reaction pathways2 is impressive. For example, FVT has been a key step in pmpamtions of -tally important molecules such as vinyl amine.3 vinyl alcohol.4 silaetheneti and nitrosyl hydride6 to name a few,

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## Abstract The kinetic measurements in the Flash Vacuum Thermolysis (FVT) of 3,5‐Dimethyl‐ and 5‐Methyl‐ 4‐Nitroisoxazole confirm the already suggested intermediacy of the isomer 2H‐Azirine in the formation of 1‐ Cyano‐1‐Nitroacetone. Moreover, theoretical calculations of the stabilization energy