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CAS RN: 36805-97-7 | Product Number: D1303

N,N-Dimethylformamide Di-tert-butyl Acetal [for Esterification]


Purity: >98.0%(N)
Synonyms:
  • 1,1-Di-tert-butoxytrimethylamine
  • N,N-DMF Di-tert-butyl Acetal
Documents:
5ML
$115.00
2   Contact Us ≥80 
25ML
$345.00
4   1   ≥100 

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Product Number D1303
Purity / Analysis Method >98.0%(N)
Molecular Formula / Molecular Weight C__1__1H__2__5NO__2 = 203.33 
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
Packaging and Container 25ML-Vial (View image),  5ML-Vial (View image)
CAS RN 36805-97-7
Reaxys Registry Number 969629
PubChem Substance ID 87567826
SDBS (AIST Spectral DB) 7968
MDL Number

MFCD00015002

Specifications
Appearance Colorless to Almost colorless clear liquid
Purity(with Total Nitrogen) min. 98.0 %
Effect test of GC derivalization Effective as derivatization agent Myristic Acid
NMR confirm to structure
Properties (reference)
Boiling Point 57 °C/8 mmHg
Flash point 33 °C
Specific Gravity (20/20) 0.85
Refractive Index 1.41
GHS
Pictogram Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
H226 : Flammable liquid and vapor.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P240 : Ground/bond container and receiving equipment.
P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233 : Keep container tightly closed.
P243 : Take precautionary measures against static discharge.
P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment.
P242 : Use only non-sparking tools.
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.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
P362 : Take off contaminated clothing and wash before reuse.
P403 + P235 : Store in a well-ventilated place. Keep cool.
Related Laws:
Transport Information:
UN Number (DOT-AIR) UN1993
Class (DOT-AIR) 3
Packing Group (TCI-A) III
HS Number 2922.19.9690
Application
TCI Practical Example: Esterification Using N,N-DMF Di-tert-Butyl Acetal

Title

Used Chemicals

Procedure

To a solution of N-acetyl-L-phenylalanine (1.0 g, 4.78 mmol) in DMF di-tert-butyl acetal (6.9 mL, 28.7 mmol, 6.0 eq.) was stirred at 60 °C for overnight. The solvent was removed under reduced pressure and the residue was purified by column chromatography (ethyl acetate:hexane = 1:1 on silica gel), giving tert-butyl acetyl-L-phenylalaninate as a colorless oil (1.20 g, 94% yield).

Experimenter’s Comments

The reaction mixture was monitored by UPLC.

Analytical Data

tert-Butyl Acetyl-L-phenylalaninate

1H NMR (400 MHz, CDCl3); δ 7.28–7.19 (m, 3H), 7.13-7.11 (m, 2H), 5.92 (br d, 1H, J = 7.6 Hz), 4.76–4.71 (m, 1H), 3.07 (d, 2H, J = 6.0 Hz), 1.96 (s, 3H), 1.38 (s, 9H).

Lead Reference


Application
Esterification Reagent for GC Derivatization

Experimental procedure: Fatty acid (~ 5 mg) is placed into a vial and then N,N-dimethylformamide di-tert-butyl acetal (100 μL) is added. The reaction is completed upon dissolution. The reaction mixture can be injected directly into GC.

References


PubMed Literature


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