Antibody 38C2 efficiently catalyzes deuterium-exchange reactions at the alpha position of a variety of ketones and aldehydes, including substrates that have a variety of sensitive functional groups. In addition to the regio- and chemoselectivity of these reactions, the catalytic rates (kcat) and rate-enhancement values (kcat/kun) are among the highest values ever observed with catalytic antibodies
Deuterated forms of N-3-[5-(2-Amino-4-pyrimidinyl)-2-(1,1-dimethylethyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide and pharmaceutical compositions containing the same.
The uranium (III) complexCp3U(THF) (CpηC5H5, THF = tetrahydrofuran) reacted with saturaed ketones RCOCH2R′ to give equimolar mixtures of the compounds Cp3UOCHR(CH2R′) and Cp3UOCR(′).
SAVOIA, D.;TAGLIAVINI, E.;TROMBINI, C.;UMANI-RONCHI, A., J. ORG. CHEM., 1982, 47, N 5, 876-879
作者:SAVOIA, D.、TAGLIAVINI, E.、TROMBINI, C.、UMANI-RONCHI, A.
DOI:——
日期:——
H-D Exchange in Pinacolone by Deuterium Oxide at High Temperature and Pressure
作者:Barbara Kuhlmann、Edward M. Arnett、Michael Siskin
DOI:10.1021/jo00097a046
日期:1994.9
The rates of deuteration of pinacolone in pure deuterium oxide at 225 degrees C and 370 psia of (autogenic) pressure were studied. No novel pathways appear to operate in this D2O-catalyzed process under these conditions. Pseudo-first-order kinetics suggest that the reaction -proceeds via classical enolization with an observed first-order rate constant of 8.8 x 10(-3) min(-1), determined at three concentrations.