Pyrimidine-5-carboxaldehyde
- CAS NO.:10070-92-5
- Empirical Formula: C5H4N2O
- Molecular Weight: 108.1
- MDL number: MFCD03426065
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-05-18 08:51:54
What is Pyrimidine-5-carboxaldehyde?
The Uses of Pyrimidine-5-carboxaldehyde
Pyrimidine-5-carboxaldehyde is used in the preparation of (S)- and (R)-pyrimidyl alkanol by reacting with diisopropylzinc and (n-butyl)ethyl(n-hexyl)(n-propyl)methane.
Synthesis
Under nitrogen, a solution of 5-bromopyrimidine (1 g, 6.3 mmol) in 60 mL anhydrous THF was added BuLi (2.5 M, 2.6 mL, 6.5 mmol) at -78° C. The resulting yellow solution was stirred for 20 min, after which ethyl formate (0.55 mL, 6.7 mmol) was added dropwise over 5 min. After 20 min, the reaction was quenched with 1.5 M THF/HCl solution (4.5 mL, 6.7 mmol). The cold bath was removed, and the reaction mixture was stirred for 1 h. THF was removed in vacco, 10 mL of water was then added. The mixture was extracted with CHCl3 (2*10 mL), and the combined organics were dried (MgSO4) and concentrated. The crude product was purified via flash column chromatography (5 per cent MeOH/CHCl3) to give 0.35 g (51 per cent) of the titled Pyrimidine-5-carboxaldehyde.
Properties of Pyrimidine-5-carboxaldehyde
Melting point: | 39-43°C |
Boiling point: | 80-82°C 4mm |
Density | 1.23 |
storage temp. | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
pka | 1.15±0.10(Predicted) |
form | solid |
color | Light yellow to yellow |
InChI | InChI=1S/C5H4N2O/c8-3-5-1-6-4-7-2-5/h1-4H |
CAS DataBase Reference | 10070-92-5(CAS DataBase Reference) |
Safety information for Pyrimidine-5-carboxaldehyde
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for Pyrimidine-5-carboxaldehyde
InChIKey | FREJAOSUHFGDBW-UHFFFAOYSA-N |
SMILES | C1=NC=C(C=O)C=N1 |
New Products
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