Abstract:303ChemInform Abstract The oxazol-5-one (IV) is obtained from glycine (I) and hexafluoroacetone (II) by subsequent treatment of (III) with SO2Cl2 or AIBN. (IV) reacts with the ynamines (V) to form the cycloaddition products (VI). Hydrolysis with diluted HCl produces a mixture of the isomers (VII) and (VIII) which are separated and treated with conc. HCl to give the aspartic acid derivatives (IX). (IR-, 1H-, 19F-NMR-data).
“…Nucleophilic ring opening with various O- and N- nucleophiles provides access to esters and amides of α-keto acids. With o -phenylendiamines, quinoxalines were formed (Scheme ). , 11 …”
Section: 4 Application Of Hfa In α-Keto Acid Chemistrymentioning
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.
“…Nucleophilic ring opening with various O- and N- nucleophiles provides access to esters and amides of α-keto acids. With o -phenylendiamines, quinoxalines were formed (Scheme ). , 11 …”
Section: 4 Application Of Hfa In α-Keto Acid Chemistrymentioning
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.
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