A Shortcut to the Preparation of Naturally Occurring Arbutin

Never-theless, although these glycosylations proceeded smoothly and afforded effectively the final product, there still remain several drawbacks such as incomplete anomeric retention, relatively low total yield and especially, long reaction time (commonly more than 24 h for 2 - 3 steps).Microwave irradiation is known as a powerful tool for both enhancing the reaction efficacy and economizing the reaction time. To our surprise, though this methodology has been ma-ssively introduced into carbohydrate chemistry