ACETOBROMO-ALPHA-D-XYLOSE
- Product Name
- ACETOBROMO-ALPHA-D-XYLOSE
- CAS No.
- 3068-31-3
- Chemical Name
- ACETOBROMO-ALPHA-D-XYLOSE
- Synonyms
- Acetobromoxylose;Acetobromo-α-D-xylose;alpha-Acetobromoxylose;-D-xylopyranosyl bromide;ALPHA-ACETOBROMO-D-XYLOSE;ACETOBROMO-ALPHA-D-XYLOSE;α-D-Xylopyranosyl bromide;2,3,4-Tri-O-acetyl-ùD-alpha-bromo-triacetoxylose;2,3,4-O-triacetyl-A-D-bromo xylose
- CBNumber
- CB0339746
- Molecular Formula
- C11H15BrO7
- Formula Weight
- 339.14
- MOL File
- 3068-31-3.mol
ACETOBROMO-ALPHA-D-XYLOSE Property
- Melting point:
- 88-90°C
- Boiling point:
- 337.2±42.0 °C(Predicted)
- Density
- 1.51±0.1 g/cm3(Predicted)
- storage temp.
- Hygroscopic, -20°C Freezer, Under Inert Atmosphere
- solubility
- Chloroform (Sparingly, Heated), Dichloromethane (Slightly), Ethyl Acetate
- form
- Solid
- color
- White to Pale Beige
- Stability:
- Hygroscopic, Moisture Sensitive
Safety
- HS Code
- 2938909090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P337+P313IF eye irritation persists: Get medical advice/attention.
N-Bromosuccinimide Price
- Product number
- B688345
- Product name
- Bromo2,3,4-Tri-O-acetyl-α-D-xylopyranoside(Stabilizedwith2.5%CaCO3)
- Packaging
- 250mg
- Price
- $130
- Updated
- 2021/12/16
- Product number
- 294727
- Product name
- 2,3,4-Tri-O-acetyl-a-D-xylopyranosyl bromide
- Packaging
- 50mg
- Price
- $340
- Updated
- 2021/12/16
- Product number
- MT04675
- Product name
- 2,3,4-Tri-O-acetyl-a-D-xylopyranosyl bromide - Stabilised with 2.5% CaCO3
- Packaging
- 50mg
- Price
- $50
- Updated
- 2021/12/16
- Product number
- MT04675
- Product name
- 2,3,4-Tri-O-acetyl-a-D-xylopyranosyl bromide - Stabilised with 2.5% CaCO3
- Packaging
- 100mg
- Price
- $90
- Updated
- 2021/12/16
- Product number
- MT04675
- Product name
- 2,3,4-Tri-O-acetyl-a-D-xylopyranosyl bromide - Stabilised with 2.5% CaCO3
- Packaging
- 250mg
- Price
- $120
- Updated
- 2021/12/16
ACETOBROMO-ALPHA-D-XYLOSE Chemical Properties,Usage,Production
Chemical Properties
Off-White Solid
Uses
α-Acetobromo-D-xylose, 95% is a biochemical reagent.
Synthesis
62446-93-9
3068-31-3
II. General procedure for the synthesis of 2,3,4-tri-O-acetyl-α-D-bromopyranose (formula XII): In a 1 L round-bottomed flask equipped with a protective tube was added tetra-O-acetyl-D-xylulose (formula XI; 25.0 g, 78.54 mmol) and dichloromethane (500 mL), and the mixture was cooled to 0°C in an ice bath. An acetic acid solution (56 mL) of 33% hydrogen bromide was slowly added to the cooled solution over a period of 1 h under constant stirring. After addition, the reaction mixture was continued stirring at room temperature for 1 hour. After the completion of the reaction was monitored by thin layer chromatography (TLC, unfolding reagent ratio of 4:6 ethyl acetate:hexane), the reaction mixture was washed sequentially with ice water (1 x 500mL), 1% sodium bicarbonate solution (1 x 500mL), 10% sodium bicarbonate solution (2 x 500mL) and saturated saline (1 x 500mL). The organic layer was separated, dried with anhydrous sodium sulfate, filtered and concentrated under reduced pressure to afford a white solid 2,3,4-tri-O-acetyl-α-D-bromopyranose (formula XII), which could be used in the next reaction without further purification. The yield and nuclear magnetic resonance (NMR) data of the compound of formula XII were as follows: yield: 24.0 g (90%); 1H NMR (300 MHz, CDCl3): δ=6.59 (d, 1H, J=3.9 Hz), 5.60 (t, 1H, J=9.9 Hz), 5.05-5.03 (m, 1H), 4.77 (dd, 1H, J= 3.9,9.6Hz), 4.07 (dd, 1H, J=6.3,11.4Hz), 3.88 (t, 1H, J=11.1Hz), 2.10 (s, 3H), 2.06 (s, 6H).
References
[1] Journal of Organic Chemistry, 2001, vol. 66, # 7, p. 2327 - 2342
[2] Organic Letters, 2007, vol. 9, # 20, p. 3897 - 3900
[3] Bulletin of the Korean Chemical Society, 2010, vol. 31, # 3, p. 653 - 663
[4] Patent: US2012/29179, 2012, A1. Location in patent: Page/Page column 7
[5] Tetrahedron, 2005, vol. 61, # 35, p. 8405 - 8409
ACETOBROMO-ALPHA-D-XYLOSE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from ACETOBROMO-ALPHA-D-XYLOSE manufacturers
- Product
- 2,3,4-Tri-O-acetyl-α-D-xylopyranosyl bromide 3068-31-3
- Price
- US $0.00/G
- Min. Order
- 1G
- Purity
- 98%min
- Supply Ability
- 30kg/month
- Release date
- 2023-02-17
- Product
- ACETOBROMO-ALPHA-D-XYLOSE 3068-31-3
- Price
- US $8.80/KG
- Min. Order
- 1KG
- Purity
- 97%-99%
- Supply Ability
- 100kg
- Release date
- 2019-07-09