Formation of Orthoesters of Oleanolic Acid During Königs-Knorr Glycosidations

Autor:	Robert Weis, Werner Seebacher, Ernst Haslinger
Rok vydání:	2001
Předmět:	Reaction conditions chemistry.chemical_classification chemistry.chemical_compound Oleanolate chemistry Disaccharide Organic chemistry Glycoside Glycosyl General Chemistry Orthoester Oleanolic acid
Zdroj:	Monatshefte fuer Chemie/Chemical Monthly. 132:839-847
ISSN:	0026-9247
DOI:	10.1007/s007060170072
Popis:	The formation of orthoesters during Konigs-Knorr reactions is described. Diphenylmethyl oleanolate reacts with 1 → 4 linked disaccharide donors to orthoesters instead of the expected glycosides. The reaction with acetobromoglucose gave a mixture of orthoester and glycoside. The influence of the structure of the glycosyl donors and of the reaction conditions on the formation of orthoesters is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d182b6e985813f85fcc008b64ef05878 https://doi.org/10.1007/s007060170072 Zobrazit plný text záznamu Full text from SpringerLink