منابع مشابه
1,2-cis Alkyl glycosides: straightforward glycosylation from unprotected 1-thioglycosyl donors.
A 1,2-cis-alkyl glycosidation protocol that makes use of unprotected phenyl 1-thioglycosyl donors is reported. Glycosylation of various functionalized alcohols was accomplished in moderate to high yield and selectivity to give the 1,2-cis-glycosides. In order to quickly develop optimum glycosylation conditions, an FIA (flow injection analysis)-ESI-TOF-MS method was developed that enabled rapid ...
متن کاملAlkyl-alkyl Suzuki cross-coupling of unactivated secondary alkyl chlorides.
The first method for achieving alkyl–alkyl Suzuki reactions of unactivated secondary alkyl chlorides has been developed. Carbon–carbon bond formation occurs under mild conditions (at room temperature) with the aid of commercially available catalyst components. This method has proved to be versatile: without modification, it can be applied to Suzuki reactions of secondary and primary alkyl bromi...
متن کاملSimple and Mixed Reverse Micelles as Potential Bioreactors for Enzymatic Synthesis of Alkyl Glycosides – Environmentally Friendly Surfactants
Two types of microemulsion reaction systems: simple and mixed reverse micelles have been investigated as potential bioreactors for a transglycosylation reaction catalyzed by three microbial b-galactosidases: fungal Aspergillus oryzae, yeast Kluyveromyces marxianus and bacterial Escherichia coli b-galactosidase. Several issues such as: the effect of the degree of hydration on the total enzyme ac...
متن کاملPolycationic glycosides.
Cationic lipids have long been known to serve as antibacterial and antifungal agents. Prior efforts with attachment of cationic lipids to carbohydrate-based surfaces have suggested the possibility that carbohydrate-attached cationic lipids might serve as antibacterial and antifungal pharmaceutical agents. Toward the understanding of this possibility, we have synthesized several series of cation...
متن کاملEnzymatic synthesis of glycosides: from natural O- and N-glycosides to rare C- and S-glycosides
Carbohydrate related enzymes, like glycosyltransferases and glycoside hydrolases, are nowadays more easily accessible and are thought to represent powerful and greener alternatives to conventional chemical glycosylation procedures. The knowledge of their corresponding mechanisms has already allowed the development of efficient biocatalysed syntheses of complex O-glycosides. These enzymes can al...
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ژورنال
عنوان ژورنال: Trends in Glycoscience and Glycotechnology
سال: 1990
ISSN: 0915-7352,1883-2113
DOI: 10.4052/tigg.2.190