Аннотация:
6,7-Dihydrobenzo[c][1,2,5]oxadiazol-4(5H)-one oxime is annelated with acetylene in the KOH/DMSO/H2O system under pressure to give NH- or N-vinyl-5,8-dihydro-4H-[1,2,5]oxadiazolo[3,4-g]indoles in 29 and 68% yields, respectively. These derivatives are readily aromatized with DDQ at room temperature to the expected indoles.
Образец цитирования:
A. B. Budaev, A. V. Ivanov, O. V. Petrova, V. A. Samsonov, I. A. Ushakov, A. Ya. Tikhonov, L. N. Sobenina, B. A. Trofimov, “1,2,5-Oxadiazolo[3,4-g]indoles via annelation of 6,7-dihydrobenzo[c][1,2,5]oxadiazol-4(5H)-one oxime with acetylene”, Mendeleev Commun., 29:1 (2019), 53–54