Photoredox Mediated Acceptorless Dehydrogenative Coupling of Saturated <i>N</i>-Heterocycles
作者:Zongbin Jia、Qi Yang、Long Zhang、Sanzhong Luo
DOI:10.1021/acscatal.9b00123
日期:2019.4.5
We report herein a direct unsymmetric coupling and controllable aromatization reaction of saturatedN-heterocycles enabled by synergistic photoredox and acid catalysis. The reaction furnishes C2–C3 connected biheterocycles in a highly chemo- and regioselective manner under rather mild conditions. Mechanistic studies indicated that the reaction proceeded via enamine-iminium coupling leading to exclusively
1H and13C NMR spectral studies of some biquinoline derivatives and a re-investigation of the reaction of quinoline with sodium
作者:Alan G. Osborne、Richard Green、Ian H. Sadler、David Reed
DOI:10.1002/mrc.1260270103
日期:1989.1
The 360 MHz 1H and 15 MHz 13C NMR spectra of 2, 2′‐biquinoline, 2,3′‐biquinoline and 6,6′‐dimethyl‐2,3′‐biquinoline are presented and assigned. The diamagnetic anisotropic effect of the neighbouring aromatic ring (Dc) and the electrostatic field effect of the nitrogen lone pair (DN) result in characteristic deshielding effects in the 1HNMR spectra of these compounds. The characteristic chemical shift
Aksenov, Alexander V.; Magedov, Igor V.; Smushkevich, Yuri I., Journal of the Chemical Society. Perkin transactions I, 1992, # 7, p. 759 - 762
作者:Aksenov, Alexander V.、Magedov, Igor V.、Smushkevich, Yuri I.
DOI:——
日期:——
Investigations in the region of 2,3′-biquinoline. 2. Investigation of the nucleophilic addition of organomagnesium compounds and sodium hydride to 2,3′-biquinoline
作者:A. V. Aksenov、O. N. Nadein、I. V. Borovlev、Yu. I. Smushkevich
DOI:10.1007/bf02315186
日期:1998.2
Synthesis and protonation of 2,3?-biquinolyl dianions
作者:A. V. Aksenov、I. V. Aksenova、I. V. Borovlev、A. A. Bumber、A. F. Pozharskii、Yu. I. Smushkevich