1849-29-2Relevant articles and documents
Oxyfunctionalization with CpIrIII(NHC)(Me)L complexes
Lehman, Matthew C.,Boyle, Paul D.,Sommer, Roger D.,Ison, Elon A.
, p. 5081 - 5084 (2014)
A series of monomethyl CpIrIII complexes were synthesized and studied for the formation of methanol in water. Methanol yields of 75(4)% in the presence of O2 were obtained. From isotope labeling studies, it was determined that O2 is the source of the oxygen atom in the product. From kinetic studies, oxyfunctionalization appears to proceed by dissociation of an L-type ligand followed by O2 binding and insertion.
Shiner
, p. 240,242 (1961)
Kice,Walters
, p. 590 (1972)
METHOD FOR PRODUCING DEUTERATED METHYL METHACRYLATE
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Page/Page column 7, (2008/06/13)
A method for producing MMA-d8 which includes a step of exchanging D in hydroxyl group of methanol-d4 represented by the formula: CD3OD with H to prepare the methanol-d3 represented by the formula CD3OH and simultaneously recovering a deuterium-containing compound, and a step of reacting methanol-d3 with sulfuric acid salt of methacrylic acid amide represented by the formula CD2=(CD3)CO(NH2·H2SO4) to prepare MMA-d8 represented by the formula: CD2=(CD3)COOCD3.
Unusual ionic hydrogen bonds: Complexes of acetylides and fluoroform
Chabinyc, Michael L.,Brauman, John I.
, p. 8739 - 8745 (2007/10/03)
Ion-molecule complexes of substituted acetylides, RCC- (R = tert-butyl, H, phenyl, p-tolyl), and fluoroform, HCF3, were studied using Fourier transform ion cyclotron resonance mass spectrometry. These complexes, RCC-·HCF3, all have complexation energies of approximately -19 kcal/mol and are, therefore, hydrogen bonded. The acetylides vary in basicity over a 6 kcal/mol range, but all have the same complexation energy with fluoroform. The structure of these complexes was verified by deuterium isotopic exchange reactions and equilibrium fractionation experiments. The relationship between acid-base thermochemistry and hydrogen bond stability is discussed.