6235-14-9Relevant academic research and scientific papers
Study on comparison of reducing ability of three organic hydride compounds
Feng, Yi-Si,Yang, Chun-Yan,Huang, Qiang,Xu, Hua-Jian
, p. 5053 - 5059 (2012/07/28)
Selective reduction of three kinds of substrates were studied to evaluate the reducing abilities of N,N-dimethyl-benzimidazolidine (DMBI), 2-phenylbenzimidazoline (PBI) and 2-phenylbenzothiazoline (PBT). As hydride donors, these three five-membered heterocyclic compounds performed different reducing abilities depending on the substrates.
Facile metal free regioselective transfer hydrogenation of polarized olefins with ammonia borane
Yang, Xianghua,Fox, Thomas,Berke, Heinz
supporting information; experimental part, p. 2053 - 2055 (2011/03/22)
Transfer hydrogenation of polarized olefins bearing strongly electron-withdrawing groups on one side of the double bond was achieved with ammonia borane under mild conditions without using a catalyst. Mechanistic studies proved the character of the direct H transfers proceeding stepwise with a unique hydroboration intermediate and hydride before proton transfer.
A study on the reactions of NADH models with electron-deficient alkenes. A probe for the extreme of concerted electron-hydrogen atom transfer mechanism
Fang, Xin-Qiang,Xu, Hua-Jian,Jiang, Hong,Liu, You-Cheng,Fu, Yao,Wu, Yun-Dong
scheme or table, p. 312 - 315 (2009/04/14)
The reactions of 9-fluorenylidenemalononitrile (FDCN) and 1,1-diphenyl-2,2-dicyanoethylene (DPCN) with Hantzsch ester (HEH), N-methyl Hantzsch ester (Me-HEH), and 1-benzyl-1,4-dihydronicotinamide (BNAH) in oxygen-saturated acetonitrile have been studied. The aerobic reactions with HEH give solely reduction products. However, reactions with Me-HEH and BNAH not only result in reduction products, but also give varying amounts of oxidation products. The amount of oxidation product appears to be related to the electronic character and bulkiness of reactants. We propose that all these reactions follow a general mechanism of concerted electron-hydrogen atom transfer mechanism. If the electron-transfer complex is very tight, only 'concerted hydride transfer reaction' occurs. However, if the electron-transfer complex is not so tight, oxygen can capture the radicaloid intermediate to result in oxidation products.
Polysiloxane-supported NAD(P)H model 1-benzyl-1,4-dihydronicotinamide: Synthesis and application in the reduction of activated olefins
Zhang, Baolian,Zhu, Xiao-Qing,Lu, Jin-Yong,He, Jiaqi,Wang, Peng G.,Cheng, Jin-Pei
, p. 3295 - 3298 (2007/10/03)
A new polysiloxane-supported NAD(P)H model, 1-benzyl-1,4-dihydronicotinamide, was designed and synthesized, which can efficiently reduce many activated olefins under mild conditions. The most advantageous features of this new polysiloxane-supported reductant are (i) easy workup and separation of the reaction products and (ii) good potential for recycling use of the reductant, which makes this new polysiloxane-supported NAD(P)H model a promising alternative both in research laboratories and in industrial processes.
Electro-organic Reactions. Part 26. The Cathodic Reduction of Dicyanoethylene Derivatives; Competition between Hydrogenation and Hydrodimerisation
Clarke, Norman C.,Runciman, Peter J. I.,Utley, James H. P.,Landquist, Justus K.
, p. 435 - 440 (2007/10/02)
Dicyanoethylene derivatives, and related compounds, undergo smooth cathodic reduction to give the products of hydrogenation (2 F mol-1), hydrodimerisation (1 F mol-1), or a mixture of both.The product distribution depends crucially u
Mass Spectra of Dicyanomethylene Derivatives of Benzophenone Analogs
Wang, Ching-Bore,Her, Guor-Rong,Watson, J. Throck
, p. 457 - 461 (2007/10/02)
The dicyanomethylene derivative of a benzophenone analog significantly alters the fragmentation pattern observed during electron impact ionization of the underivatized parent compound.A double bond connecting the dicyanomethylene moiety to the parent comp
