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CAS RN: 1125-88-8 | Product Number: B1197

Benzaldehyde Dimethyl Acetal


Purity: >98.0%(GC)
Synonyms:
  • α,α-Dimethoxytoluene
Product Documents:
25ML
$18.00
≥40  ≥80 
100ML
$52.00
22   ≥60 
500ML
$149.00
25   ≥100 

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* The storage conditions are subject to change without notice.


Product Number B1197
Purity / Analysis Method >98.0%(GC)
Molecular Formula / Molecular Weight C__9H__1__2O__2 = 152.19 
Physical State (20 deg.C) Liquid
Storage Temperature Room Temperature (Recommended in a cool and dark place, <15°C)
Store Under Inert Gas Store under inert gas
Condition to Avoid Moisture Sensitive
CAS RN 1125-88-8
Reaxys Registry Number 2044501
PubChem Substance ID 87564133
SDBS (AIST Spectral DB) 18176
MDL Number

MFCD00008491

Specifications
Appearance Colorless to Almost colorless clear liquid
Purity(GC) min. 98.0 %
Properties (reference)
Boiling Point 196 °C
Flash point 71 °C
Specific Gravity (20/20) 1.02
Refractive Index 1.49
GHS
Pictogram Pictogram
Signal Word Warning
Hazard Statements H302 : Harmful if swallowed.
H319 : Causes serious eye irritation.
H227 : Combustible liquid.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P270 : Do not eat, drink or smoke when using this product.
P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth.
P403 + P235 : Store in a well-ventilated place. Keep cool.
Related Laws:
RTECS# CU5774000
Transport Information:
H.S.code* 2911.00-000
*This code is applied to the products when TCI exports from Japan and not for import in your country.
Application
TCI Practical Example: Regioselective Benzylidene Acetal Protection of the β-glucoside.

 TCI Practical Example: Regioselective Benzylidene Acetal Protection of the β-glucoside.

Used Chemicals

Procedure

To a solution of salicin (200 mg, 0.7 mmol) in DMF (2 mL) was added benzaldehyde dimethyl acetal (125 µL, 0.8 mmol) and p-TsOH・H2O (12 mg, 0.07 mmol) and the mixture was stirred at 80 °C for 2 hours. The reaction was quenched with triethylamine (19 µL, 0.14 mmol) and the solvent was removed under reduced pressure. The residue was purified by column chromatography (ethyl acetate:hexane = 10:90 - 85:15) to give 1 as a white solid (165 mg, 63%).

Experimenter’s Comments

The reaction mixture was monitored by UPLC.

Analytical Data

4,6-O-Phenylmethylidene-D-salicin (1)

1H NMR (270 MHz, DMSO); δ 7.46-7.37 (m, 6H), 7.24-7.19 (m, 1H), 7.11 (d, J = 7.6 Hz, 1H), 7.02 (t, J = 7.6 Hz, 1H), 5.65-5.61 (m, 2H), 5.42 (d, J = 5.4 Hz, 1H), 5.05-4.98 (m, 2H), 4.65 (dd, J = 5.4, 14 Hz, 1H), 4.48 (dd, J = 6.2, 14 Hz, 1H), 4.23 (dd, J = 4.32, 9.45 Hz, 1H), 3.76-3.38 (m, 5H).

Lead Reference


PubMed Literature


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