Solar and visible-light active nano Ni/g-C<sub>3</sub>N<sub>4</sub> photocatalyst for carbon monoxide (CO) and ligand-free carbonylation reactions
作者:Mona Hosseini-Sarvari、Zahra Akrami
DOI:10.1039/d0cy01717e
日期:——
novel method that does not utilize ligands, bases, gaseous CO, and special conditions. This procedure is a redox reaction carried out by new economic nano Ni/g-C3N4 at room temperature and under visible light. Mo(CO)6 was used to in situ generate CO, to resolve the problems caused by the use of CO gas. This protocol has the ability to be used on a gram scale by using a continuous flow reactor.
在这项研究中,我们研究了在不存在一氧化碳气体和配体的情况下,各种取代的芳基卤化物,苄基碘化物和碘代环己烷与不同类型的胺和醇之间的氨基和烷氧基羰基化反应。在适当的配体,化学计量的碱和气态一氧化碳的存在下,在高温下进行类似的反应,这会危害有机化学家的健康。我们提出了一种不利用配体,碱,气态CO和特殊条件的新颖方法。该步骤是在室温和可见光下通过新型经济纳米Ni / gC 3 N 4进行的氧化还原反应。Mo(CO)6用于原位产生一氧化碳,以解决由使用一氧化碳气体引起的问题。通过使用连续流动反应器,该协议具有以克为单位使用的能力。
Acylarylnitrosamines. Part V. Decompositions of N-nitrosobenzanilides in carbon tetrachloride and benzene: the formation of carboxylic acids, anhydrides, and arynes
作者:J. I. G. Cadogan、D. M. Smith、J. B. Thomson
DOI:10.1039/p19720001296
日期:——
Reactions carried out in the presence of tetraphenylcyclopentadienone lead to the trapping of arynes, with suppression, in some cases, of formation of the anhydride. The presence of water leads to the suppression of the formation of arynes. Similar results are obtained from corresponding decompositions in benzene with the exception that anhydrides are not formed. 2′,4,6′-Trichloro- and 2′,4′,6′-t
一系列的分解Ñ -nitrosobenzanilides [R 1 C ^ 6 ħ 4 ·N(NO)·CO·C 6 H ^ 4 - [R 2 - p ; R 2= Cl;R 1= H,2-Br,3-Br,4-Br,3-Me,4-Me,3-NO 2或4-NO 2。R 2= Br;R 1 = 4-NO 2或4-Me。R 1= H;研究了在四氯化碳中存在或不存在四苯基环戊二烯酮的情况下的R 2 = NO 2或Me]。在后一种情况下,反应生成相应的苯甲酸(p -R 2 C 6 H 4 ·CO 2 H)(29–79%),苯甲酸酐[(p -R 2 C 6 H 4 ·CO)2 O](12–38%)和芳基氯(R 1 C 6高4Cl)(15–40%)为主要产物,因此表明已经发生了芳族质子的去除,并且亚硝酸酰胺或重氮羧酸异构体上的羧酸根阴离子已经发生了进攻。在四苯基环戊二烯酮存在下进行的反应导致捕获芳烃,在某
Ni/g‐C
<sub>3</sub>
N
<sub>4</sub>
Photocatalysis: Aerobic Oxidative Coupling Reaction Leading to Amidation of Aldehydes with Amines and C−N, C−O, and C−C Cross‐Coupling Reaction
作者:Zahra Akrami、Mona Hosseini‐Sarvari
DOI:10.1002/ejoc.202200429
日期:2022.6.27
Graphitic carbonnitrides bonded with nickel can induce mild aerobicoxidativecoupling reactions. Amidation of aldehydes with amines was reported, as well as the cross-coupling of C−N, C−O, and C−C aryl halides with amines, alcohols, and carboxylic acid.