4423-10-3Relevant articles and documents
Oxidative reactions of azines. 11. The influence of manganese dioxide on the reaction of tetrahydropyridines with formaldehyde: Synthesis and molecular structures of 3-oxa-7-azabicyclo[3.3.1]- and 6-oxa-2-azabicyclo[3.2.1]octanes
Soldatenkov,Polyanskii,Temesgen,Sergeeva,Vysotskaya,Averkiev,Antipin,Lobanov
, p. 641 - 649 (2004)
New derivatives of piperidino[4,5-d]dioxane and 3-oxa-7-bicyclo[3.3.1] nonane were obtained by the oxidatively catalysed condensation of 4-aryl-1,2,3,6-tetrahydropyridines with formaldehyde. The direction of this reaction is sharply altered in the presence of manganese dioxide to give 6-oxa-2-azabicylo[3.2.1]octan-4-one - the product of the oxidative condensation of a new type.
One-pot condensation of 2-arylpropenes with formaldehyde and ammonium chloride: The synthesis of aryl substituted pyridines and 5,7,11-trioxa-1-azatricyclo[7.3.1.03,8]tridecanes
Soldatenkov,Polyanskii,Temesgen,Soldatova,Sergeeva,Kolyadina,Lobanov
, p. 154 - 155 (2001)
A mixture consisting of 2-arylpropene 1 or 2, formaldehyde and ammonium chloride condenses in a one-pot manner to yield 5,7,11-trioxa-1-azatricyclo [7.3.1.03,8]tridecanes 3 or 4. In the presence of manganese dioxide the reaction leads to 4-arylpyridines 5 or 6.
Cobalt-catalyzed cross-coupling of nitrogen-containing heterocyclic phosphonium salts with arylmagnesium reagents
Cui, Yan-Ying,Na, Jin-He,Guo, Meng-Meng,Huang, Jie-Ying,Chu, Xue-Qiang,Rao, Weidong,Shen, Zhi-Liang
supporting information, (2022/02/16)
Cobalt-catalyzed cross-couplings of nitrogen-containing heterocyclic phosphonium salts with arylmagnesium halides proceeded efficiently with the aid of cobalt(II) catalyst and copper(I) salt in tetrahydrofuran at ambient temperature, producing the desired
Tunable Second-Level Room-Temperature Phosphorescence of Solid Supramolecules between Acrylamide–Phenylpyridium Copolymers and Cucurbit[7]uril
Xu, Wen-Wen,Chen, Yong,Lu, Yi-Lin,Qin, Yue-Xiu,Zhang, Hui,Xu, Xiufang,Liu, Yu
supporting information, (2021/12/24)
A series of solid supramolecules based on acrylamide–phenylpyridium copolymers with various substituent groups (P?R: R=?CN, ?CO2Et, ?Me, ?CF3) and cucurbit[7]uril (CB[7]) are constructed to exhibit tunable second-level (from 0.9 s to
New Nickel-Based Catalytic System with Pincer Pyrrole-Functionalized N-Heterocyclic Carbene as Ligand for Suzuki-Miyaura Cross-Coupling Reactions
Guo, Zhifo,Lei, Xiangyang
supporting information, (2021/09/11)
A new catalytic system with Ni(NO3)2·6H2O as the catalyst and a pincer pyrrole-functionalized N-heterocyclic carbene as the ligand was employed in the Suzuki-Miyaura cross-coupling reactions of aryl iodides with arylboronic acids. With 5 mol% catalyst, the catalytic reactions proceeded at 160 °C, giving coupling products in isolated yields of up to 94% in short reaction times (1-4 h). The system worked efficiently with aryl iodides bearing electron-donating or electron-withdrawing groups and arylboronic acids with electron-donating groups. Steric effects were observed for both aryl iodides and arylboronic acids. It is proposed that the reactions underwent a Ni(I)/Ni(III) catalytic cycle.
