NMR spectroscopic study of the formation of borate esters ascorbic acid and isoascorbic acid

Autor:	Yasuo Shigemitsu, Katayama Masatoshi, Kanako Takada, Naoki Obi, Junko Sano, Kojima Yasuhiko
Rok vydání:	1998
Předmět:	Chemistry Chemical shift Materials Chemistry Organic chemistry chemistry.chemical_element General Chemistry Ring (chemistry) Ascorbic acid Boron Catalysis
Zdroj:	New Journal of Chemistry. 22:933-934
ISSN:	1369-9261 1144-0546
DOI:	10.1039/a804680h
Popis:	The favorable positions for borate ester formation of ascorbic acid are 3,5-OH groups which yields a 6-membered ring, even though 13B NMR chemical shifts of the borate ester of ascorbic acid suggested the existence of a 5-membered ring.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::47c17b4b842db983a5f7bc51919c6572 https://doi.org/10.1039/a804680h Zobrazit plný text záznamu