4329-74-2Relevant articles and documents
Visible light mediated homo- and heterocoupling of benzyl alcohols and benzyl amines on polycrystalline cadmium sulfide
Mitkina, Tatiana,Stanglmair, Christoph,Setzer, Wolfgang,Gruber, Michael,Kisch, Horst,Koenig, Burkhard
supporting information; experimental part, p. 3556 - 3561 (2012/06/01)
The oxidative coupling of sp3 hybridized carbon atoms by photocatalysis is a valuable synthetic method as stoichiometric oxidation reagents can be avoided and dihydrogen is the only byproduct of the reaction. Cadmium sulfide, a readily available semiconductor, was used as a visible light heterogeneous photocatalyst for the oxidative coupling of benzyl alcohols and benzyl amines by irradiation with blue light. Depending on the structure of the starting material, good to excellent yields of homocoupling products were obtained as mixtures of diastereomers. Cross-coupling between benzyl alcohols and benzyl amines gave product mixtures, but was selective for the coupling of tetrahydroisoquinolines to nitromethane. The results demonstrate that CdS is a suitable visible light photocatalyst for oxidative bond formation under anaerobic conditions.
Novel chemoselective hydrogenation of aromatic nitro compounds over ferric hydroxide supported nanocluster gold in the presence of CO and H2O
Liu, Lequan,Qiao, Botao,Chen, Zhengjian,Zhang, Juan,Deng, Youquan
supporting information; scheme or table, p. 653 - 655 (2009/06/05)
Chemoselective hydrogenation of aromatic nitro compounds were first efficiently achieved over Au/Fe(OH)x at 100-120°C for 1.5-6 h (depending on different substrates) in the presence of CO and H2O. The Royal Society of Chemistry 2009.
Nitrobenzyl (α-amino)phosphonates. Part 2[1]. Cleavage of 4-nitrobenzyl(α-amino)phosphonic acids in aqueous sodium hydroxide solution
Boduszek, Bogdan,Halama, Agnieszka
, p. 239 - 250 (2007/10/03)
4-Nitrobenzyl(α-amino)phosphonic acids treated with an excess of aqueous sodium hydroxide undergo a C-P bond cleavage and subsequent transformation into a mixture of azoxybenzene and azobenzene derivatives. The observed cleavage is an example of the intramolecular redox reaction. The phosphonate moiety is oxidized to phosphate, and the remaining part of the molecule is reduced to azoxybenzene derivative 2. After acidification of the reaction mixture two main products were isolated; 4,4′-diformylazoxybenzene (3) and 4-formyl-4′-hydroxyazobenzene (4). The product 4 was probably formed as a result of the Wallach type rearrangement of 3.
Selective reduction of organic compounds with indium hydride reagents
Yamada, Masafumi,Tanaka, Koji,Araki, Shuki,Butsugan, Yasuo
, p. 3169 - 3172 (2007/10/02)
Three indium hydride reagents (LiInH4, LiPhInH3, and LiPh2InH2) were prepared and successfully used for the selective reduction of various organic compounds.
Mechanism of the Reaction of Sodium Hydroxide and Nitrobenzylsulphones
Riad, Y.,Asaad, A. Naguib,Nahas, Hind Moustafa El,Madkour, A. Emad El Din
, p. 157 - 172 (2007/10/03)
Aqueous sodium hydroxide reacts with sulphonyl>acetic acid (1) to give 4,4'-diformylazoxybenzene and 4,4'-dicarboxyazoxybenzene as the main products, while in 50percent water-dioxane medium the products are 4,4'-dihydroxymethylazoxybenzene, 4,4'-dicarboxyazoxybenzene besides 4-carboxy, 4'-hydroxymethylazoxybenzene and its isomer. 4-Nitrosobenzaldehyde is an intermediate in this reaction which via a Cannizzaro reaction gives the reaction products.Other 2-, 3- and 4-nitrobenzyl sulphones are studied.
