5517-61-3Relevant articles and documents
Site-Selective and Stereoselective C-H Alkylations of Carbohydrates via Combined Diarylborinic Acid and Photoredox Catalysis
Dimakos, Victoria,Su, Hsin Y.,Garrett, Graham E.,Taylor, Mark S.
, p. 5149 - 5153 (2019)
Diphenylborinic acid serves as a cocatalyst for site- and stereoselective C-H alkylation reactions of carbohydrates under photoredox conditions using quinuclidine as the hydrogen atom transfer mediator. Products arising from selective abstraction of the equatorial hydrogens of cis-1,2-diol moieties, followed by C-C bond formation with net retention of configuration, are obtained. Computational modeling supports a mechanism involving formation of a tetracoordinate borinic ester, which accelerates hydrogen atom transfer with the quinuclidine-derived radical cation through polarity-matching and/or ion-pairing effects.
Synthesis and biological evaluation of novel apio nucleosides with thiazole-4-carboxamide and 1,2,4-triazole-3-carboxamide
Kim, Myong Jung,Jeong, Lak Shin,Kim, Joong Hyup,Shin, Ji Hye,Chung, Soon Yong,Lee, Sang Kook,Chun, Moon Woo
, p. 715 - 724 (2007/10/03)
In view of biological activities of azole nucleosides and apio-dideoxynucleoside, novel apio nucleoside analogues (1 and 2) with thiazole and triazole base moiety were synthesized using 2,3-O-isopropylidene-apio-β -D-furanose (3), which was prepared from D-mannose.
REGIOSELECTIVE O-DEACYLATION OF FULLY ACYLATED GLYCOSIDES AND 1,2-O-ISOPORPYLIDENEALDOFURANOSE DERIVATIVES WITH HYDRAZINE HYDRATE
Ishido, Yoshiharu,Sakairi, Nobuo,Sekiya, Masao,Nakazaki, Nobuo
, p. 51 - 80 (2007/10/02)
On hydrazinolyis in 1:4 acetic acid-pyridine, and in pyridine, partisl O-deacylation of fully acylated methyl glycosides and some other glycosyl compounds ( 23 compounds ) was found to be induced, to give, in good yields, products bearing one free hydroxy