21368-68-3Relevant articles and documents
carba Nicotinamide Adenine Dinucleotide Phosphate: Robust Cofactor for Redox Biocatalysis
D?ring, Manuel,Sieber, Volker,Simon, Robert C.,Tafertshofer, Georg,Zachos, Ioannis
supporting information, p. 14701 - 14706 (2021/05/13)
Here we report a new robust nicotinamide dinucleotide phosphate cofactor analog (carba-NADP+) and its acceptance by many enzymes in the class of oxidoreductases. Replacing one ribose oxygen with a methylene group of the natural NADP+ was found to enhance stability dramatically. Decomposition experiments at moderate and high temperatures with the cofactors showed a drastic increase in half-life time at elevated temperatures since it significantly disfavors hydrolysis of the pyridinium-N?glycoside bond. Overall, more than 27 different oxidoreductases were successfully tested, and a thorough analytical characterization and comparison is given. The cofactor carba-NADP+ opens up the field of redox-biocatalysis under harsh conditions.
Ultrasmall Platinum Nanoparticles Supported Inside the Nanospaces of Periodic Mesoporous Organosilica with an Imidazolium Network: An Efficient Catalyst for the Aerobic Oxidation of Unactivated Alcohols in Water
Karimi, Babak,Naderi, Zahra,Khorasani, Mojtaba,Mirzaei, Hamid M.,Vali, Hojatollah
, p. 906 - 910 (2016/03/15)
The imidazolium group inside the wall of a periodic mesoporous organosilica provides an excellent environment for the stabilization of ultrasmall Pt nanoparticles ((NP)@PMO-IL) with significant activity and recyclability in the selective aerobic oxidation of various alcohols in water at ambient pressure of oxygen. In particular, the catalyst exhibited high activity in the oxidation of unactivated primary alcohols and sterically encumbered secondary aliphatic alcohols, which remain challenging substrates for many catalytic aerobic protocols.
A DERIVATIVE OF AZEPINE AND ITS APPLICATION AS A SPECIFIC OPTICAL RESOLUTION AGENT
Fernandez, Franco,Perez, Cristina
, p. 2411 - 2417 (2007/10/02)
The synthesis of (-)-(2S,trans)-perhydro-2-isopropyl-5-methyl-azepin-1-amine (1) and its use as a specific optical resolution agent of ketones is described.A method for the resolution of ketones and its application to three ketones is described.This method also involves the synthesis and separation of the pairs of hydrazones diastereomers followed by removal of hydrazines by hydrolysis to give the individual enantiomers of II, III and IV with high chiral purities.
