Results 51 to 60 of about 898 (95)

HYDROLASE PHOSPHORIC DIESTER, RNA

, 1996
Mei Hsu Dung, Jeffrey A. Bell
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P-Chloride-Free Synthesis of Phosphoric Esters: Microwave-Assisted Esterification of Alkyl- and Dialkyl Phosphoric Ester-acids obtained from phosphorus pentoxide

Synthesis, 2022
It is a reasonable endeavour to replace P-chloride starting materials (e.g. POCl3) by greener and cheaper reagents. Our purpose was to start from phosphorus pentoxide, i.e. to utilize its reaction with alcohols in the preparation of (HO)2P(O)(OR) and HOP(
Nikoletta Harsági, N. Kiss, G. Keglevich   +2 more
semanticscholar   +1 more source

Insight into the Mechanism of the Acylation of Alcohols with Acid Anhydrides Catalyzed by Phosphoric Acid Derivatives.

Journal of Organic Chemistry, 2021
Insight into the mechanism of a safe, simple, and inexpensive phosphoric acid (H3PO4)-catalyzed acylation of alcohols with acid anhydrides is described.
Hiroyuki Hayashi, Shotaro Yasukochi, Tatsuhiro Sakamoto, M. Hatano, K. Ishihara   +4 more
semanticscholar   +1 more source

Asymmetric total synthesis of (-)-leuconoxine via chiral phosphoric acid catalyzed desymmetrization of a prochiral diester.

Organic Letters, 2015
The asymmetric total synthesis of (-)-leuconoxine has been achieved. The desymmetrization of a prochiral diester using a chiral phosphoric acid catalyst produced a highly enantioenriched lactam with excellent yield.
K. Higuchi, Shin Suzuki, Reeko Ueda, N. Oshima, Emiko Kobayashi, Masanori Tayu, T. Kawasaki   +6 more
semanticscholar   +1 more source

Small-molecule inhibitors of protein kinase C, the Janus kinases (JAK) pathway and phosphodiesterases in the treatment of psoriasis

, 2014
Psoriasis is a chronic recurrent inflammatory skin disorder clinically characterized by scaly erythema with occasional involvement of joints.Although biological therapies targeting specific inflammatory pathways have proved to be highly effective in ...
Jian-Qiang Yang, X. Man, M. Zheng
semanticscholar   +1 more source

Kinetic resolution of phosphoric diester by Cinchona alkaloid derivatives provided with a guanidinium unit

, 2016
Cinchona alkaloid derivatives featuring a guanidinium group in diverse positions efficiently catalyze the cleavage of the RNA model compound 2-hydroxypropyl p-nitrophenyl phosphate (HPNP).
R. Salvio, M. Moliterno, Dario Caramelli, Luca Pisciottani, Achille Antenucci, M. D'Amico, M. Bella   +6 more
semanticscholar   +1 more source

(.+-.)-1,1′-Binaphthalene-2,2′-diol-derived Phosphoric Diester: Immobilization on Polyethylene Glycol Support and Application in the Pudovik Reaction.

, 2012
Racemic PEG-supported-1,1′-binaphthalene-2,2′-diphosphoric acids are synthesized using a click chemistry approach as key step.
I. Beletskaya, L. S. Patrikeeva, F. Lamaty   +2 more
semanticscholar   +1 more source

Enantioselective allylic thioetherification: the effect of phosphoric acid diester on iridium-catalyzed enantioconvergent transformations.

Angewandte Chemie, 2012
You'll take the high road and I'll take the low road: Enantioenriched allylic thioethers have been synthesized from chiral racemic allylic alcohols.
Markus Roggen, E. Carreira
semanticscholar   +1 more source

Template-Dependent Selectivity in Metal Adsorption on Phosphoric Diester-Carrying Resins Prepared by Surface Template Polymerization Technique.

, 1996
The surface templated resins for three different metal ions such as Cu2+, Zn2+ or Cd2+ as the template guest were prepared by emulsion polymerization using oleyl phenyl hydrogenphosphate as a host surfactant, sodium dodecyl sulfate (SDS) as a co ...
M. Murata, Shinji Hijiya, M. Maeda, M. Takagi   +3 more
semanticscholar   +1 more source

Assays for the Classification of Two Types of Esterases: Carboxylic Ester Hydrolases and Phosphoric Triester Hydrolases

Current Protocols in Toxicology, 2002
Assays for the Classification of Two Types of Esterases: Carboxylic Ester Hydrolase and Phosphoric Triester Hydrolase (Douglas D. Anspaugh and Michael Roe, North Carolina State University, Raleigh, North Carolina).
D. Anspaugh, R. Roe
semanticscholar   +1 more source