منابع مشابه
Taurine conjugation of arylacetic acids in the ferret.
reactivity. As anti-mitochondria1 antibodies can bind complement we used a complement-fixation test. Results from preliminary tests were difficult to interpret. The Paracoccus membranes had strong anti-complementary activity, which had to be diluted out. Also the sera available from patients with primary biliary cirrhosis were themselves anti-complementary up to quite high dilutions. Neverthele...
متن کاملThe conjugation of arylacetic acids in the pigeon compared with the hen.
In the domestic hen phenylacetic acid is excreted conjugated mainly with ornithine (Totani, 1910), but in the pigeon it is excreted conjugated with taurine and glycine (James et al., 1972). This difference between the hen and pigeon has now been further investigated with several arylacetic acids. The compounds used were 14C-carboxy-labelled phenylacetic acid, 4-chloroand 4-nitrophenylacetic aci...
متن کاملEnediolate-dilithium amide mixed aggregates in the enantioselective alkylation of arylacetic acids: structural studies and a stereochemical model.
A combination of X-ray crystallography, (6)Li, (15)N, and (13)C NMR spectroscopies, and density functional theory computations affords insight into the structures and reactivities of intervening aggregates underlying highly selective asymmetric alkylations of carboxylic acid dianions (enediolates) mediated by the dilithium salt of a C2-symmetric chiral tetraamine. Crystallography shows a trilit...
متن کاملVisible light-mediated oxidative decarboxylation of arylacetic acids into benzyl radicals: addition to electron-deficient alkenes by using photoredox catalysts.
Reactions of arylacetic acids bearing an amino group at the para-position in the benzene ring with alkenes in the presence of a catalytic amount of transition metal polypyridyl complexes as photocatalysts under visible light illumination proceed smoothly to give the corresponding benzylated products via oxidative decarboxylation in good to high yields.
متن کاملCovalent intermediates in flavin-sensitized photodehydrogenation and photodecarboxylation.
The photoreactions of the flavin triplet with unsaturated hydrocarbons, aldehydes, sulphur compounds, and carbonic acids are reported. These reactions proceed by attack at the allylic C —H-, the RCO —H-, or the a-C —H-bond, respectively; in the case of carbonic acids decarboxylation occurs. In all the reported reactions covalent adducts are formed, whose structure and mode of decay is character...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1992
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.40.2188