1,4,2-Dioxazole synthesis by the reaction of nitrosocarbonyl compounds with 2,5-dimethylfuran
作者:Christopher J. B. Dobbin、Donald Mackay、Michael R. Penney、L� H. Dao
DOI:10.1039/c39770000703
日期:——
Oxidation of hydroxamic acids in the presence of 2,5-dimethylfuran gives excellent yields of the 3-substituted-5-methyl-5-(cis-3-oxobutenyl)-1,4,2-dioxazoles (2); the reaction is reversible and probably occurs by way of an initially formed Diels–Alder adduct.
在2,5-二甲基呋喃的存在下氧化异羟肟酸可得到3-取代的5-甲基-5-(顺式-3-氧代丁烯基)-1,4,2-二恶唑的极佳收率(2)。该反应是可逆的,可能通过最初形成的Diels-Alder加合物发生。