Acid-Catalyzed <i>O</i>-Glycosylation with Stable Thioglycoside Donors
作者:Kristina D. Lacey、Rashanique D. Quarels、Shaofu Du、Ashley Fulton、Nicholas J. Reid、Austin Firesheets、Justin R. Ragains
DOI:10.1021/acs.orglett.8b02125
日期:2018.9.7
4-(4-methoxyphenyl)-4-pentenylthioglycosides (MPTGs), undergo acid-catalyzed O-glycosylations with a range of sugar and nonsugar alcohols at 25 °C. Electron density at the styrene alkene is critical for reactivity while sugar protecting group patterns have a minimal effect. In contrast with most methods for thioglycoside activation, acid-catalyzed activation of MBTGs is compatible with electroneutral alkenes
Homogeneous Gold-Catalyzed Glycosylations in Continuous Flow
作者:Stefan Matthies、D. Tyler McQuade、Peter H. Seeberger
DOI:10.1021/acs.orglett.5b01584
日期:2015.8.7
The use of versatile alkynyl-building blocks that are activated by gold(I)-catalysis is demonstrated to efficiently generate a variety of glycosides in continuous flow. The application of a continuous flow setting to gold(I)-catalyzed glycosylations enables very short reaction times and excellent control of the reaction conditions.