The first asymmetric synthesis of a 4-aryl-substituted 5-carboxy-3,4-dihydropyridin-2-one derivative
✍ Scribed by Xiaojun Huang; Jiang Zhu; Scott Broadbent
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- French
- Weight
- 226 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
A simple and practical route for the asymmetric synthesis of (S)-4-(4-fluorophenyl)-1,4,5,6-tetrahydro-6oxo-3-pyridinecarboxylic acid (1) is presented. The procedure comprises catalytic desymmetrization of a meso-anhydride using a chiral thiourea organocatalyst, followed by selective formylation and cyclization.
📜 SIMILAR VOLUMES
## Abstract magnified image Small libraries of 3,5‐unsubstituted 4‐substituted‐6‐aryl‐3,4‐dihydropyridin‐2(1__H__)‐ones derivatives were synthesized from the condensation‐products of aldehydes with Meldrum's acid, aromatic ketones and ammonium acetate using acetic acid as energy transferring‐agent
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Marazano et al. reported the asymmetric cycloaddition of 2-unsubstituted 1,2-dihydropyridines which are N-substituted with a chiral auxiliary [7]. Shono et al. published an enantioselective synthesis of methyl 1,2-dihydropyridine-2-carboxylate from Llysine [8].
The synthesis of optically pure 4,5-dihydro-3(2H)-pyridazinones substituted at C-4, which can be considered conformationally restricted cyclic Glu derivatives, has been accomplished by the asymmetric g-alkylation of a,b-unsaturated glutamyl sultams under PTC conditions followed by reaction with hydr
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.