Densities , viscosities and ultrasonic velocities has been measured for the ternary mixture involving morpholine(1) + cyclohexanone(2) + 1hexanol(3) at 308.15K and 318.15K over the entire range of mole fraction. Parameters like excess volume, adiabatic compressibility, free volume, linear free energy, acoustic impedance, relative association and isentropic compressibility were calculated. From ...

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"N, 6Li, and I3C NMR spectroscopic studies of lithiated cyclohexanone phenylimine (1) in tetrahydrofuran/hydrocarbon solutions detected three different species. 6Li and I5N NMR spectroscopic studies of [6Li,15N]-1 showed the two species observed at low THF concentrations to be a pair of stereoisomeric dimers and the single species appearing at high THF concentrations to be a contact ion paired ...

1. Two strains of Pseudomonas were grown with phenol and used to prepare cell extracts that metabolized catechol with the transient formation of 2-hydroxymuconic semialdehyde. 2. One of these preparations catalysed the conversion of 1mol. of catechol into 1mol. each of formate and 4-hydroxy-2-oxovalerate. 3. A method for the determination of 4-hydroxy-2-oxovalerate is described, together with s...

Este trabalho apresenta o desenvolvimento de um método simples, rápido e preciso para análise dos produtos da hidrogenação eletrocatalítica da ciclohexanona com a técnica de microextração em fase sólida, usando cromatografia a gás com detector de ionização por chama. A otimização preliminar do método foi realizada através de ferramentas quimiométricas. Os resultados de LOD e LOQ foram 0,50% de ...

acetoacetate level is markedly raised it does not contribute to any increase in the third spot. The absence of any detectable acetoacetate spot is probably due to decarboxylation, both during the extraction process and during the run on the paper, and it was noticed that an acetone 2:4-dinitrophenylhydrazone spot was regularly seen on the chromatograms from the alloxan-treated animals. In view ...