74199-29-4Relevant academic research and scientific papers
Synthesis of Terminal N-Vinylazoles from Aromatic Aldehydes, DMSO, and Azoles Based DMSO as Terminal Carbon Synthon
Nie, Zhiwen,Lv, Huifang,Li, Hui,Su, Miaodong,Yang, Tonglin,Luo, Weiping,Liu, Qiang,Guo, Cancheng
, p. 4621 - 4626 (2021/09/02)
A protocol for the synthesis of terminal N-vinylazoles from aromatic aldehydes, DMSO, and azoles has been reported. In this strategy, DMSO was involved in the construction of the C=C bond as a terminal carbon synthon. Both aromatic aldehydes and azoles could be well tolerated and give the corresponding terminal N-vinylazoles in 52–91% yields. Based on preliminary experiments, a plausible mechanism is proposed. (Figure presented.).
A general copper-catalyzed coupling of azoles with vinyl bromides
Liao, Qian,Wang, Yuxing,Zhang, Liyun,Xi, Chanjuan
scheme or table, p. 6371 - 6373 (2009/12/08)
(Chemical Equation Presented) A copper-catalyzed methodology for the coupling of vinyl bromides with azoles has been developed. This protocol uses a combination of 10 mol % of copper iodide and 20 mol % of ethylenediamine as catalyst. The reaction proceed
A polymer-bound oxidovanadium(IV) complex prepared from an L-cysteine-derived ligand for the oxidative amination of styrene
Maurya, Mannar R.,Kumar,Correia, Isabel,Adao, Pedro,Pessoa, Joao Costa
, p. 577 - 587 (2008/12/22)
The ligand H2sal-cys (I) derived from salicylaldehyde and Lcysteine has been covalently bonded to chloromethylated polystyrene cross-linked with 5% divinylbenzene. Upon treatment with [VO(acac)2] in dimethylformamide (DMF) the polystyrene-bound ligand PS-H2sal-cys (II) gave the oxidovanadium(IV) complex, PS-[VO(sal-cys)·DMF] (1). The corresponding neat complex, [VO(sal-eta)]2 (2), has also been prepared similarly in methanol. These complexes have been characterised by IR, electronic, EPR spectroscopic studies, magnetic susceptibility measurements and thermal as well as scanning electron micrographs studies. Complex [VO-(sal-eta)]2 exhibits a medium intensity band at 980 cm -1 in the IR spectrum due to ν(V=O) stretch. Broad features of the EPR spectrum for the neat complex along with magnetic susceptibility studies suggest the presence of antiferromagnetic exchange interaction between two vanadium centers in close proximity. Both complexes catalyze the oxidative amination of styrene, in mild basic conditions, with secondary amines (diethylamine, imidazole, and benzimidazole) and gave a mixture of two aminated products in good yields. Amongst the two aminated products, the anti-Markovnikov product is favored over the Markovnikov one due to the steric hindrance posed by the secondary amines. The polymeranchored heterogeneous catalyst is free from leaching during catalytic action and recyclable. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
Synthesis and Antifungal Activity of New 1-Vinylimidazoles
Ogata, Masaru,Matsumoto, Hiroshi,Shimizu, Sumio,Kida, Shiro,Shiro, Motoo,Tawara, Katsuya
, p. 1348 - 1354 (2007/10/02)
Carbonyl compounds I were subjected to an imidazole transfer reaction with N,N'-sulfinyldiimidazole or N,N'-carbonyldiimidazole to obtain the diimidazole II and the monoimidazole III.Various 1-vinylimidazoles IV, derived from o-hydroxyacetophenones by imi
