Now showing items 71-80 of 426
Fe---P---0 catalysts for methane utilization--catalyst development and identification
(Elsevier, 1990-05)
Fe---P---0 catalyst formulations show great promise for oxidative coupling of methane. They attain yields of C2 hydrocarbons comparable to the best in the literature at a temperature which is far below those reported. The ...
The synthesis of DL-3,3-Difluoroglutamic acid from a 3-oxoprolinol derivative
(Elsevier, 1993-07-30)
DL-3,3-Difluoroglutamic acid was synthesized from a masked 3-hydroxyprolinol, 6-hydroxy-1-aza-3-oxabicyclo[3.3.0]octan-2-one, in eight steps. The described synthetic route expands the utility of fluoroproline derivatives ...
Progress in Practice: Organic Chemistry in the Introductory Course II. The Advantages of Physical Organic Chemistry
(Springer-Verlag; Springer-Verlag New York, Inc., 1997-06)
Identification of a conditionally essential heat shock protein in Escherichia coli
(Elsevier, 1994-08-17)
Protein D48.5 was recognized as a heat-inducible protein of Escherichia coli during the screening of a group of random, temperature-inducible Mud-Lac fusion mutants. Physiological and genetic analysis demonstrated that (i) ...
The measurement of molecular diversity by receptor site interaction simulation
(Kluwer Academic Publishers; Springer Science+Business Media, 1998-09)
The assembly of large compound libraries for the purpose of screening against various receptor targets to identify chemical leads for drug discovery programs has created a need for methods to measure the molecular diversity ...
Vibrational analysis of 2,2,3-trichlorobutane and a force field for 2,2-dichloropropane
(Elsevier, 1990)
The infrared and Raman spectra of 2,2,3-dichlorobutane have been analysed in terms of normal modes calculated from a force field for secondary dichlorides refined using this molecule as well as 2,2-dichlorobutane and ...
Synthesis of block, graft and star polymers from inorganic macroinitiators
(John Wiley & Sons, Ltd., 1998-10)
Recent advances in the synthesis of block, graft and star polymers containing inorganic macromolecular species are described. Anionic copolymerization techniques were used in the for-mation of diblock copolymers of ...
Cell cycle of Chlorella vulgaris can deviate from the synchronous binary division model
(Kluwer Academic Publishers; Chapman and Hall ; Springer Science+Business Media, 1997-06)
Conditioned medium from high density Chlorella vugaris cultures was freeze dried extracted into ethanol. The ethanol was volatilized and the resulting powder then introduced with C. vulgaris photoautotrophic cultures which ...
Substituent effects on 13C NMR chemical shifts in dialkylaminophenylchlorophosphines
(Elsevier, 1992)
The relative chemical shifts and 2J(PC) coupling constants in the low-temperature limiting spectra of a series of Ph(R2N)PCl compounds [R = Me, Et, PhCH2, iPr and c-Hex] differ for R = primary or secondary. For primary ...