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Published TCIMAIL newest issue No.197
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CAS RN: 5439-14-5 | Product Number: D1393
3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one
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![3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one](/_ui/responsive/theme-tci/images/missing_product_zoom.jpg "3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one")
Purity: >98.0%(T)(HPLC)
Synonyms:
- Acid Captor H
Product Documents:
| Size | Unit Price | Belgium | Japan* | Quantity |
|---|---|---|---|---|
| 5G |
€53.00
|
Contact Us | Contact Us |
|
| 25G |
€168.00
|
Contact Us | Contact Us |
|
*Stock available in Belgium will be delivered in 1 to 3 days
*Stock available in Japan will be delivered in 1 to 2 weeks (excludes regulated items and dry ice shipments).
| Product Number | D1393 |
| Purity / Analysis Method | >98.0%(T)(HPLC) |
| Molecular Formula / Molecular Weight | C__8H__8N__2O = 148.17 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Air Sensitive |
| CAS RN | 5439-14-5 |
| Reaxys Registry Number | 511818 |
| PubChem Substance ID | 87567899 |
| MDL Number | MFCD00042798 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(Nonaqueous Titration) | min. 98.0 % |
| NMR | confirm to structure |
Properties (reference)
GHS
Related Laws:
| EC Number | 226-618-2 |
Transport Information:
| HS Number | 2933998090 |
Application
An Effective Acid Captor of Mukaiyama Condensation Reaction
Experimental procedure: To a mixture of 2-fluoro-1-methylpyridinium p-toluenesulfonate (1.2 mmol) and 3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one (4.8 mmol) is added a dichloromethane solution (4 mL) of pentanoic acid (1.0 mmol) and benzyl alcohol (1.0 mmol) at room temperature under argon atmosphere, and the resulting mixture is stirred at room temperature for 46 h. After evaporation of the solvent under reduced pressure, the residue is chromatographed on silica gel, and benzyl pentanoate is isolated (74% yield).
References
- BETAINE AS AN EFFECTIVE ACID CAPTOR: A CONVENIENT METHOD FOR THE SYNTHESIS OF CARBOXYLIC ESTERS
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