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CasNo： 72904-85-9
MF： C14H18 O6
Appearance： White to off-white crystalline powder
Purity： ≥98.0
NAME：Methyl 4,6-O-benzylidene-α-D-galactopyranoside
CAS No.：72904-85-9
Quality Standard:
| Item | Specification |
| Appearance | White to off-white crystalline powder |
| Assay , % | ≥98.0 |
| Melting point, ℃ | 168.0-175.0 |
| Loss on drying, % | ≤1.0 |
| Residue on ignition, % | ≤0.10 |
Methyl-4, 6-benzylidene -α -D-galactopyranoside is a commonly used benzylidene protected carbohydrate derivative, usually as an intermediate, widely used in the synthesis of a variety of compounds.
The benzylidene acetal group is one of t...
The first known report on the fluoride c...
Multivalent carbohydrate-lectin interact...
The crystal structure of methyl β-d-mann...
benzaldehyde dimethyl acetal
Methyl mannoside
Methyl-4,6-O-(phenylmethylene)-β-D-mannopyranoside
| Conditions | Yield |
|---|---|
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; at 20 ℃; for 48h;
|
65% |
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; at 20 ℃;
|
61% |
benzaldehyde dimethyl acetal
(2R,3S,4S,5S,6S)-2-(hydroxymethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol
methyl-4,6-O-phenylmethylene-α-D-mannopyranoside
| Conditions | Yield |
|---|---|
|
With camphor-10-sulfonic acid;
|
98% |
|
With 1,3,5-trichloro-2,4,6-triazine; In acetonitrile; at 60 ℃; for 0.166667h; regioselective reaction; Sonication; Inert atmosphere;
|
98% |
|
With toluene-4-sulfonic acid; 1-butyl-3-methylimidazolium Tetrafluoroborate; at 80 ℃; for 2h;
|
88% |
|
With 3,4-bis((3,5-bis(trifluoromethyl)phenyl)amino)cyclobut-3-ene-1,2-dione; In acetonitrile; at 20 ℃; for 2.5h; Inert atmosphere;
|
86% |
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; at 50 - 70 ℃; for 4h;
|
78% |
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; acetonitrile;
|
77% |
|
With perchloric acid on silica gel; In N,N-dimethyl-formamide; at 20 ℃;
|
73% |
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; at 60 ℃; for 1h; Inert atmosphere;
|
70% |
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; at 60 ℃; for 1h;
|
70% |
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; at 60 ℃; for 1h;
|
70% |
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; at 60 ℃; for 2h; under 150.015 Torr;
|
52% |
|
With camphor-10-sulfonic acid; In N,N-dimethyl-formamide; at 20 ℃; for 24h;
|
48% |
|
With camphor-10-sulfonic acid; In N,N-dimethyl-formamide; at 60 ℃; for 32.75h; under 195.016 Torr;
|
37% |
|
With toluene-4-sulfonic acid; In N,N-dimethyl-formamide; at 60 ℃; for 6h; under 150.015 Torr;
|
31% |
|
With camphor-10-sulfonic acid; In N,N-dimethyl-formamide; at 20 ℃;
|
|
|
In N,N-dimethyl-formamide; at 40 ℃; for 4h;
|
12 g |
|
With iodine; In acetonitrile; at 20 ℃; for 3h;
|
methyl β-D-galactopyranoside
benzaldehyde dimethyl acetal
(2R,3S,4S,5S,6S)-2-(hydroxymethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol
benzaldehyde
Methyl-4,5-O-benzyliden-2,3-carbonato-α-D-mannopyranosid
methyl 4,6-O-benzylidene-2,3-di-O-methyl-α-D-mannopyranoside
methyl 2,3-di-O-benzyl-4,6-O-benzylidene-α-D-mannopyranoside
Methyl 2-O-acetyl-4,6-O-(phenylmethylene)-α-D-mannopyranoside
