Maccioni; Marongiu, Gazzetta Chimica Italiana, 1955, vol. 85, p. 1570,1572
作者:Maccioni、Marongiu
DOI:——
日期:——
Quinoline synthesis: scope and regiochemistry of photocyclisation of substituted benzylidenecyclopentanone O-alkyl and O-acetyloximes
作者:Mark Austin、Oliver J. Egan、Raymond Tully、Albert C. Pratt
DOI:10.1039/b711620a
日期:——
resulting in 7-substituted products. 2-Furylmethylene and 2-thienylmethylene analogues yield annulated furo- and thieno-[2,3e]pyridines respectively. Sequential E- to Z-benzylidene group isomerisation and six pi-electron cyclisation steps result in formation of a short-lived dihydroquinoline intermediate which spontaneously aromatises by elimination of an alcohol or acetic acid. For 2-benzylidenecyclopentanone