A facile, metal-free, oxidative coupling of new 6-(hetero)aryl-[1,2,5]-oxadiazolo[3,4-b]pyrazines with pyrroles, indoles and carbazoles
作者:Yuriy A. Kvashnin、Nikita A. Kazin、Egor V. Verbitskiy、Tatyana S. Svalova、Alla V. Ivanova、Alisa N. Kozitsina、Pavel A. Slepukhin、Gennady L. Rusinov、Oleg N. Chupakhin、Valery N. Charushin
DOI:10.3998/ark.5550190.p009.828
日期:——
A facile, transition metal free, one-pot oxidative coupling reaction between 6-(hetero)aryl[1,2,5]oxadiazolo[3,4-b]pyrazines and pyrroles, indoles or carbazoles is reported. This atomeconomic C-H functionalization procedure requires only stoichiometric amounts of reacting heterocycles and an appropriate Lewis acid, as catalyst. The structures of representative new 5,6di(hetero)aryl-[1,2,5]oxadiazolo[3
据报道,6-(杂)芳基[1,2,5]恶二唑并[3,4-b]吡嗪与吡咯、吲哚或咔唑之间发生了一种简便、无过渡金属的一锅氧化偶联反应。这种原子经济的 CH 官能化过程只需要化学计量的反应杂环和合适的路易斯酸作为催化剂。具有代表性的新型 5,6di(hetero) 芳基-[1,2,5] 恶二唑并 [3,4-b] 吡嗪的结构通过 X 射线晶体学得到证实。还对带有咔唑单元的新化合物进行了氧化还原和光学测量。