66117-80-4Relevant articles and documents
ELECTRON DEFICIENT HETEROAROMATIC AMMONIOAMIDATES, PART 22. N-(3-QUINAZOLINIO)AMIDATES, PART 10. Thermolysis of N-(2,4-dimethyl-6,7-methylenedioxy-3-quinazolinio)ethoxyformamidate and of ethyl N-(2-methyl-4-methylene-6,7-methylenedioxy-3,4-dihydro-3-quinazolinyl)-N-phenylcarbamate.
Bertha, P.,Fetter, J.,Lempert, K.,Moeller, J.,Radics, L.
, p. 4737 - 4744 (2007/10/02)
N-(2,4-Dimethyl-6,7-methylenedioxy-3-quinazolinio)ethoxyformamidate (1b), upon prolonged refluxing in dioxane, furnished mixtures of the quinazoline derivatives 3b, 4, 5 and 6, and ethyl carbamate; in butanol compound 4 was formed as the sole thermolysis product.N-(2-Methyl-4-methylene-6,7-methylenedioxy-3,4-dihydro-3-quinazolinyl)-N-phenylcarbamate (2c) was transformed on refluxing in dioxane into mixtures of its two isomers 3c and 7.Possible modes of formation of these products are discussed, and the results of the thermolyses are compared with those of the photolyses of compounds 1b and 2c described earlier.