Synthese de pyrroles et d'oxazoles par pyrolyse de N-(hydroxy-2′ ethyl) amino-3 propenoate
作者:Catherine Pale-Grosdemange、Josselin Chuche
DOI:10.1016/s0040-4020(01)81018-8
日期:1989.1
pyrolysis of various N-(2′-hydroxyethyl)-3-amino propenoates 1–6 and N-(2′-hydroxy-2′-phenyl ethyl)-3-amino propenoate 7–9 at 390°–420°C leads respectively to formylpyrroles 11–16 and benzoylpyrroles 17–19 and, in some cases, to substituted oxazoles 36–39. The results are best explained by the intermediate formation of dicarbonyl derivative followed either by an intramolecular thermal crotonisation
Intermolecular Photoreaction of Arene- carbothioamide with 3-Methyl- and 2,4- Dimethylfurans: A Novel Formation of 2-Arylthiophene Derivatives through Photoinduced Reaction
作者:Kazuaki Oda、Hisao Tsujita、Minoru Machida
DOI:10.3987/com-02-9539
日期:——
Photoreaction of arenecarbothioamides (1) with 3-methylfuran (2) in benzene-acetone mixed solvent gave 5-aryl-2,3-dihydrothiophene derivatives (3) accompanied by pyrrole compounds.