Reductive Amination, Hydrogenation and Hydrodeoxygenation of 5‐Hydroxymethylfurfural using Silica‐supported Cobalt‐ Nanoparticles
作者:Vishwas G. Chandrashekhar、Kishore Natte、Asma M. Alenad、Ahmad S. Alshammari、Carsten Kreyenschulte、Rajenahally V. Jagadeesh
DOI:10.1002/cctc.202101234
日期:2022.1.10
Valorization of HMF by cobalt-nanoparticles catalyzed reductiveamination, hydrogenation and hydrodeoxygenation processes produce bio-based amines and heterocycles as well as 2,5-bis(hydroxymethyl)furan, (5-methylfuran-2-yl)methanol.
Research on the chemistry of 2-hetarylbenzimidazoles. 5. Acylation of 1-methyl-2-(2?-hetaryl)benzimidazoles
作者:M. M. El'chaninov、A. M. Simonov、L. Ya. Oleinikova
DOI:10.1007/bf00505746
日期:1983.10
ELCHANINOV, M. M.;SIMONOV, A. M.;OLEJNIKOVA, L. YA., XIMIYA GETEROTSIKL. SOEDIN., 1983, N 10, 1311-1313
作者:ELCHANINOV, M. M.、SIMONOV, A. M.、OLEJNIKOVA, L. YA.
DOI:——
日期:——
Synthesis and selected transformations of 1-methyl-(5-chloromethyl-2-furyl)-1H-benzimidazole hydrochloride
作者:I. M. El’chaninov、M. M. El’chaninov
DOI:10.1134/s1070363214050314
日期:2014.5
that electrophilic substitution of benzimidazole I occur only under extremely severe conditions. Hence, in these reactions furan moiety is fairly inert. Obviously, this is due to the electron-withdrawing nature of 2-benzimidazole substituent, decreasing the electron density at C and C atoms, directly conjugated with the C=N bond of the imidazole ring. Therefore, we attemptedsynthesis of the target compounds
我们之前已经证明 [2] 苯并咪唑 I 的亲电取代仅在极其恶劣的条件下发生。因此,在这些反应中,呋喃部分是相当惰性的。显然,这是由于 2-苯并咪唑取代基的吸电子性质,降低了 C 和 C 原子的电子密度,直接与咪唑环的 C=N 键共轭。因此,我们尝试从 I 的氯甲基衍生物开始合成目标化合物。氯甲基化是在多聚甲醛存在下,在盐酸水溶液 (d = 1.19 g cm) 介质中,通过改进的 Blanc 反应 [3] 进行的,无需任何催化剂。将反应混合物在 60-80°C 高压灭菌 6 小时。