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CAS No.: | 3068-32-4 |
---|---|
Name: | 2,3,4,6-Tetra-O-acetyl-alpha-D-galactopyranosyl bromide |
Article Data: | 325 |
Molecular Structure: | |
Formula: | C14H19BrO9 |
Molecular Weight: | 411.203 |
Synonyms: | Galactopyranosylbromide, tetraacetate, a-D- (6CI,7CI,8CI);a-D-Galactopyranosyl bromide, tetraacetate (9CI);1-a-Bromo-2,3,4,6-tetraacetyl-D-galactopyranose;2,3,4,6-Tetra-O-acetyl-a-D-galactopyranosyl bromide;2,3,4,6-Tetra-O-acetyl-a-D-galactosyl bromide;2,3,4,6-Tetraacetyl-a-D-galactopyranosyl bromide;2,3,4,6-Tetraacetyl-a-D-galactosyl bromide;Acetobromo-a-D-galactose;Acetylbromogalactose;Tetra-O-acetyl-a-D-galactopyranosyl bromide;a-Acetobromogalactose;a-Bromotetraacetylgalactose;a-D-Acetobromogalactose;2,3,4,6-Tetra-O-acetyl-alpha-D-galactopyranosyl bromide; |
EINECS: | 221-324-0 |
Density: | 1.49 g/cm3 |
Melting Point: | 83-85 °C |
Boiling Point: | 412 °C at 760 mmHg |
Flash Point: | 203 °C |
Solubility: | Sparingly soluble in water |
Appearance: | White crystalline solid |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38 |
Safety: | 26-36-37/39 |
PSA: | 114.43000 |
LogP: | 0.46440 |
β-D-galactose peracetate
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
With hydrogen bromide; acetic acid at 0 - 20℃; | 100% |
With hydrogen bromide In dichloromethane | 100% |
With bismuth(III) bromide; triethyl-bromo-silane In dichloromethane at 20℃; for 3h; | 100% |
penta-O-acetyl-α-D-galactopyranose
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
With hydrogen bromide; acetic acid In dichloromethane | 100% |
With hydrogen bromide; acetic acid at 20℃; for 1.5h; | 99% |
With hydrogen bromide; acetic acid at 20℃; for 18h; Inert atmosphere; | 95% |
D-galactose pentaacetate
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
With hydrogen bromide; acetic acid at 0 - 10℃; | 100% |
With bismuth(III) bromide; trimethylsilyl bromide In dichloromethane Ambient temperature; | 99% |
With bismuth(III) bromide; trimethylsilyl bromide In dichloromethane at 20℃; | 99% |
D-Galactose
acetic acid
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
With Acetyl bromide at 20℃; | 100% |
4-methoxyphenyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranoside
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
With Acetyl bromide; zinc dibromide In dichloromethane at 22℃; for 24h; | 98% |
D-Galactose
acetic anhydride
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
Stage #1: D-Galactose With Acetyl bromide In methanol Stage #2: acetic anhydride With acetic acid | 95% |
With Acetyl bromide In methanol; acetic acid at 20℃; Darkness; | 90% |
With phosphorus; perchloric acid; bromine | 81.2% |
1,2,3,4,6-penta-O-acetyl-D-galactopyranose
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
With hydrogen bromide In dichloromethane; acetic acid at 0 - 20℃; | 95% |
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
With iodine(I) bromide In dichloromethane; toluene at 20℃; for 1h; Molecular sieve; Inert atmosphere; | 95% |
α-D-galactopyranose
acetic anhydride
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
Stage #1: α-D-galactopyranose; acetic anhydride With perchloric acid at 5 - 45℃; Inert atmosphere; Stage #2: With phosphorus; bromine at 20 - 30℃; Inert atmosphere; | 94% |
2,3,4,6-tetra-O-acetyl-α/β-D-galactopyranose
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
Conditions | Yield |
---|---|
With pyridine; (PhO)3P*Br2 In dichloromethane for 0.166667h; | 90% |
With tris(2,2'-bipyridyl)ruthenium dichloride; carbon tetrabromide; tetrabutylammomium bromide In N,N-dimethyl-formamide Schlenk technique; Sealed tube; Inert atmosphere; Irradiation; | 86% |
With hydrogen bromide; acetic anhydride In dichloromethane at 20℃; for 4h; | 85% |
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Product Name: Tetra-O-acetyl-alpha-D-galactopyranosyl bromide (CAS NO.3068-32-4)
Molecular Formula: C14H19BrO9
Molecular Weight: 411.2g/mol
Mol File: 3068-32-4.mol
Melting Point: 83-85 °C
Boiling point: 412 °C at 760 mmHg
Storage Temperature: -20°C
Flash Point: 203 °C
Density: 1.49 g/cm3
Water Solubility: Sparingly soluble
Surface Tension: 47.9 dyne/cm
Enthalpy of Vaporization: 66.46 kJ/mol
Vapour Pressure: 5.35E-07 mmHg at 25°C
XLogP3-AA: 1.5
H-Bond Donor: 0
H-Bond Acceptor: 9
Structure Descriptors of Tetra-O-acetyl-alpha-D-galactopyranosyl bromide (CAS NO.3068-32-4):
IUPAC Name: [4,5-diacetyloxy-2-(acetyloxymethyl)-6-bromooxan-3-yl] acetate
Canonical SMILES: CC(=O)OCC1C(C(C(C(O1)Br)OC(=O)C)OC(=O)C)OC(=O)C
InChI: InChI=1S/C14H19BrO9/c1-6(16)20-5-10-11(21-7(2)17)12(22-8(3)18)13(14(15)24-10)23-9(4)19/h10-14H,5H2,1-4H3
InChIKey: CYAYKKUWALRRPA-UHFFFAOYSA-N
Product Categories: Sugars, Carbohydrates & Glucosides; 13C & 2H Sugars; Carbohydrates & Derivatives
Safety Information of Tetra-O-acetyl-alpha-D-galactopyranosyl bromide (CAS NO.3068-32-4):
Hazard Codes: Xi
Risk Statements: 36/37/38
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
Safety Statements: 26-36-37/39
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection
WGK Germany: 3
F: 8-10-21
Tetra-O-acetyl-alpha-D-galactopyranosyl bromide , its CAS NO. is 3068-32-4, the synonyms are EINECS 221-324-0 ; alpha-D-Galactopyranosyl bromide, tetraacetate .