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Organic Chemistry Section
Robert Schaffer
其他書名
Summary of Activities, July 1969 to June 1970
出版U.S. Department of Commerce, National Bureau of Standards, 1970
URLhttp://books.google.com.hk/books?id=8TCAsiUe5g0C&hl=&source=gbs_api
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註釋About one-half of the report concerns Standard Reference Materials (SRMs). Spectrophotometric measurements of bilirubin and of 'azobilirubin' in simple solvents and in serum or proteins are given much attention. D-Glucose for use as a clinical standard is examined by gas--liquid chromatography and differential scanning calorimetry. Additional compounds for development as SRMs are cortisol, 4-hydroxy-3-methoxy-DL-mandelic acid (VMA), D-mannnitol, and the reduced form of beta-NAD. Some properties thus far studied on commercially available specimens are reported. In carbohydrate research programs, the purity of 1,2:4,5-di-O-isopropylidene-D-fructose and the importance of using it pure for conversion into pure D-psicose are described. The proton magnetic parameters of the unquestioned, skew conformation of 3-O-benzoy1-1,2,4-O-benzylidyne-alpha-D-ribopyranose are analyzed. Iterative analysis of p.m.r. spectra and the conformations of some D-glucose derivatives are described. A number of other topics are described: iodination of beta-diketones with periodic acid, and reactions of bilirubin, hemin, and related bile pigments; also, some work on the detection of polynitro aromatic compounds is given. (Author).