Topic
Glucal
About: Glucal is a research topic. Over the lifetime, 590 publications have been published within this topic receiving 8960 citations. The topic is also known as: D-glucal.
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TL;DR: In this paper, a 2-vinyl glucal derivative was synthesized by Wittig-type methylenation of pyranosidic conjugated enals, derived from glucal, galactal and lactal.
Abstract: Monosaccharidic and disaccharidic 2-C-(β-methyl)methylene glycosides were synthesized by an electrophilic conjugate addition reaction of ROH-type compounds in the presence of Ph3P+H Br− to 2-ethenyl-3,4,6-tri-O-benzyl-D-glucal 1, functioning as a model glycosyl donor. This 2-vinyl glucal derivative represents a series of 2-vinyl and 2-butadienyl glycals, prepared by Wittig-type methylenation of pyranosidic conjugated enals, derived from glucal, galactal and lactal. The exo-(β-methyl)methylene group paves the way for further chemical transformations.
Patent•
16 Jul 1993TL;DR: In this article, an enzymatic process for the preparation of galactosylβ1,3glycal disaccharides such as Galβ 1,3Glucal, an intermediate useful in Lea preparation and an inhibitor of β-galactosidase was disclosed.
Abstract: An enzymatic process is disclosed for the preparation of galactosylβ1,3glycal disaccharides such as Galβ1,3Glucal, an intermediate useful in Lea preparation and an inhibitor of β-galactosidase. The process utilizes β-galactosidase, an enzyme usually used for bond breaking, to form a bond between a galactoside and a glucal such as glycal, a 6-0-C?1?-C6 acylglucal or 6-0-C1-C6 acetylgalactal.