Reduktone von Tetron-, Thiotetron- und Tetramsäuren, II. Reduktone durch Rhodium-katalysierte Zersetzung von Diazoverbindungen

Autor:	Josef Schachtner, Klaus Zeitler, Jutta Redlin, Hans-Dietrich Stachel, Hermann Poschenrieder
Rok vydání:	1994
Předmět:	chemistry.chemical_classification Tetrafluoroborate Reducing agent Diazomethane Organic Chemistry Alcohol Decomposition chemistry.chemical_compound chemistry Thiolactone Organic chemistry Diazo Physical and Theoretical Chemistry Lactone
Zdroj:	Liebigs Annalen der Chemie. 1994:129-132
ISSN:	1099-0690 0170-2041
DOI:	10.1002/jlac.199419940205
Popis:	Reductones of Tetronic, Thiotetronic and Tetramic Acids, II. – Reductones by Rhodium-Catalyzed Decomposition of Diazo Compounds The diazoketones 2 have been synthesized by diazo transfer reaction with 2-azido-3-ethylbenzthiazolium tetrafluoroborate. The rhodium-catalyzed decomposition of compounds 2 in tert-butyl alcohol at 130°C furnishes the reductone monoethers 3 and after deprotection the aci-reductones 4. Methylation of compounds 4 with diazomethane proceeds stepwise leading first to the monoethers 5 and then to the diethers 6. The thiolactone 4b and even more the lactams 4c and 4d are stronger reducing agents than the lactone 4a.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e610a23c31c3563e72cf7d3bc3e20473 https://doi.org/10.1002/jlac.199419940205 Zobrazit plný text záznamu Plný text