[structure: see text] Examples of (13)C NMR desymmetrization of meso compounds are presented. On analysis of the NMR profiles of 1,3-diols, the additivity is recognized to predict the NMR profiles of 1,3,5-tirols.
Chemical & pharmaceutical bulletin, 50(10), 1404-1406 (2002-10-10)
Novel, enantiomerically pure organoantimony compounds having a C-chiral amine moiety, (S)-(alpha-methyl-2-di-p-tolylstibanobenzyl)dimethylamine [AMSb] (2) and its (eta(6)-arene)chromium complex [AMSb-Cr(CO)(3)] (4), were prepared from common (S)-(alpha-methylbenzyl)dimethylamine (1) via its ortho-lithiated intermediates in short steps. The catalytic activity and enantioselectivity of the ligands
The wide dissemination of catalytic protocols in academic and industrial laboratories is facilitated by the development of catalysts that are not only highly active but also user-friendly, stable to moisture, air and long term storage and easy to prepare on
Drug and chemical toxicology, 8(1-2), 43-56 (1985-01-01)
N-Benzyl-N,N-dimethylamine (BDMA), a polyester foam catalyst, was determined to have LD50 values of 0.65 (0.48-0.88) ml/kg perorally in the rat, and 1.66 (1.35-2.04) ml/kg by 24-hr occluded dermal contact in rabbits. The Lt50 for saturated vapor atmosphere exposure of rats
[structure: see text] Three additional NMR databases, 1-3, in a chiral solvent are presented. The C.21-C.38 portion of oasomycin A is used to demonstrate the scope and limitation of the universal NMR database approach in a chiral solvent for assignment
Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..
