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Full Description
Long gone are the days when synthetic publications included parallel preparative experiments to document reproducibility of the experimental protocols and when journals required such documentation. The new Proven Synthetic Methods Series addresses concerns to chemists regarding irreproducibility of synthetic protocols, lack of characterization data for new compounds, and inflated yields reported in many chemical communications—trends that have recently become a serious problem.
Volume One of Carbohydrate Chemistry: Proven Synthetic Methods includes more detailed versions of protocols previously published for the synthesis of oligosaccharides, C-glycosyl compounds, sugar nucleotides, click chemistry, thioglycosides, and thioimidates, among others. The compilation of protocols covers both common and less frequently used synthetic methods as well as examples of syntheses of selected carbohydrate intermediates with general utility. The major focus of this book is devoted to the proper practice of state-of-the-art preparative procedures, including:
References to the starting materials used, reaction setup, work-up and isolation of products, followed by identification and proof of purity of the final material
General information regarding convenience of operation and comments on safety issues
Versatile and practically useful methods that have not received deserved, long-lasting recognition or that are difficult to access from their primary sources
Copies of 1D NMR spectra of compounds prepared, showing purity of materials readers can expect
Exploring carbohydrate chemistry from the academic points of view, the Carbohydrate Chemistry: Proven Synthetic Methods Series provides a compendium of preparatively useful procedures checked by chemists from independent research groups.
Contents
Synthetic Methods: Acetolysis of 6-Deoxysugars Controlled by Armed-Disarmed Effect. NaH/Im2SO2-Mediated Preparation of Hex-2- and Hex-3-Enopyranoside Enol Ethers. Enhancement of the Rate of Purdie Methylation by Me2S Catalysis. Synthesis of Oligosaccharides by Preactivation-Based Chemoselective Glycosylation of Thioglycosyl Donors. The Use of Hypophosphorous Acid in Radical Chain Deoxygenation of Carbohydrates. Diphenylsulfoxide-Trifluoromethanesulfonic Anhydride: A Potent Activator for Thioglycosides. Preparation of Glycosyl Chlorides from Glycopyranoses/Glycofuranoses under Mild Conditions. C-Glycosylation Starting from Unprotected O-Glycosides. Palladium-Catalyzed Sonogashira Coupling on p-Lodophenyl α-d-Mannopyranoside. Synthesis by "Click Chemistry" of an α-d-Mannopyranoside Having a 1,4-Disubstituted Triazole as Aglycone. Synthesis of Methyl Glycuronates by Chemo- and Regioselective TEMPO/BAIB-Oxidation. Synthesis of Sugar Nucleotides: A Phosphoramidite Approach. Conversion of N-2,2,2-Trichloroethoxycarbonyl-Protected 2-Aminoglycosides into N-Alkylated 2,3-N,O-Carbonyl Glycosides. TIBAL-Induced Rearrangement: Synthesis of gem-Difluorocarbagalactose. Pyranose-Fused Butenolides: An Expedient Preparation from Furanose Synthons. Glycal Dimerization with High Diastereoselectivity. Regioselective Debenzylation of C-Glycosylpropene. Synthesis of Azido-Functionalized Carbohydrates for the Design of Glycoconjugates. Synthesis of Thioglycosides and Thioimidates from Glycosyl Halides. Synthesis of Thioglycosides and Thioimidates from Peracetates.
Synthetic Intermediates: 2-Acetamido-4,6-O-Benzylidene-2-Deoxy-d-Glucopyranose. Synthesis of 1,3,4,6-Tetra-O-Acetyl-2-Azido-2-Deoxy-α,β-d-Glucopyranose and 2-Azido-4,6-O-Benzylidene-2-Deoxy-α,β-d-Glucopyranose. An Easy Access to 2,3,4,6-Tetra-O-Benzyl-d-Galactopyranose and 2,3,6-Tri-O-Benzyl-d-Glucopyranose. Benzyl 2,3,6,2',3',6'-Hexa-O-Benzyl-β-Cellobioside. One-Step Syntheses of 1,2,3,5,6-Penta-O-Benzoyl-α,β-d-Galactofuranose and 1,2,3,5-Tetra-O-Benzoyl-α,β-d-Arabinofuranose. Stereoselective Synthesis of α-C-Sialyl Compounds. Synthesis of O-Acetylated N-Acetylneuraminic Acid Glycal. Substituted Benzyl Glycosides of N-Acetylneuraminic Acid. Synthesis of 1,5-Di-C-Alkyl 1,5-Iminoxylitols Related to 1-Deoxynojirimycin. Synthesis of 1,6-Anhydro-2,3,5-Tri-O-Benzoyl-α-d-Galactofuranose. Synthesis of Prop-2-Ynyl 2,3,4,6-Tetra-O-Acetyl-α-d-Mannopyranoside. Synthesis of 3-C-(2,3,4,6-Tetra-O-Acetyl-β-d-Galactopyranosyl)prop-1-Ene. Synthesis of (E)-Methyl 4-(2,3,4,6-Tetra-O-Acetyl-β-d-Galactopyranosyl)but-2-Enoate by Cross-Metathesis Reaction. Preparation of O-β-d-Galactopyranosylhydroxylamine. Synthesis of 2,3,4,6-Tetra-O-Acetyl-1,5-Anhydro-d-Lyxo-Hex-1-Enitol and Its Conversion into a Hex-3-Enopyranosid-2-Ulose Analogue of Levoglucosenone. Efficient Synthesis of Methyl(Allyl 4-O-Acyl-2,3-Di-O-Benzyl-β-d-Galactopyranosid)uronates from d-Galacturonic Acid. Methyl(Ethyl 2,3,5-Tri-O-Benzoyl-1-Thio-α,β-d-Galactofuranosid)uronate. p-Tolyl 2,3,5-Tri-O-Benzoyl-1-Thio-α-d-Arabinofuranoside: A Useful Thioglycoside Building Block in the Synthesis of Oligoarabinofuranosides. Ethylene Dithioacetals of Common Hexoses. Preparation of 2,6-Anhydro-Aldose Tosylhydrazones. Preparation of Exo-Glycals from (C-Glycopyranosyl) formaldehyde Tosylhydrazone. Synthesis of O-(6-Deoxy-α- and β-l-Galactopyranosyl) Hydroxylamines (α- and β-l-Fucopyranosylhydroxylamines). Functionalization of Terminal Positions of Sucrose—Part I: Synthesis of 2,3,3',4,4'-Penta-OBenzylsucrose and Differentiation of the Terminal Positions (1,6,6'). Functionalization of Terminal Positions of Sucrose—Part II: Preparation of 1',2,3,3',4,4'-Hexa-O-Benzylsucrose and 6,6'-Bis-O-(2-Hydroxyethyl)-1',2,3,3',4,4'-Hexa-O-Benzylsucrose.
