ChemicalBook CAS DataBase List Methyl 2-O-Benzoyl-4,6-di-O-benzylidene-a-D-glucopyranoside

Methyl 2-O-Benzoyl-4,6-di-O-benzylidene-a-D-glucopyranoside synthesis

10synthesis methods

Product Name:Methyl 2-O-Benzoyl-4,6-di-O-benzylidene-a-D-glucopyranoside
CAS Number:28642-64-0
Molecular formula:C21H22O7
Molecular Weight:386.4

METHYL 4,6-O-BENZYLIDENE-ALPHA-D-GLUCOPYRANOSIDE

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98-88-4 Synthesis

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Methyl 2-O-Benzoyl-4,6-di-O-benzylidene-a-D-glucopyranoside

28642-64-0
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Yield:28642-64-0 92%

Reaction Conditions:

with N-ethyl-N,N-diisopropylamine;tin(ll) chloride in acetonitrile at 20; for 1 h;Catalytic behavior;Reagent/catalyst;Solvent;

Steps:

1-6 Example 1: The reaction solvent is acetonitrile and the catalyst is anhydrous stannous chloride

Weigh 282 mg of methyl-4,6-benzylidene acetal-α-D-glucoside in 10 ml of acetonitrile, add 265 μl of N,N-diisopropylethylamine and 10 mg of chloride Stannous, stir and mix, then add 140 microliters of benzoyl chloride, react at room temperature for 1 hour, evaporate the solvent,355 mg of pure methyl-2-benzoate-4,6-benzylidene acetal-D-glucoside was separated and dried by column chromatography with a yield of 92%.

References:

CN111620915,2020,A Location in patent:Paragraph 0056-0067

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