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CAS RN: 61751-44-8 | Product Number: M0670
9-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-one
![Chemical Structure of 9-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-one](/medias/M0670.jpg?context=bWFzdGVyfHJvb3R8NTM1NzF8aW1hZ2UvanBlZ3xhRFl3TDJoalpTODRPVEl5TXpNeE5UUTFOak13TDAwd05qY3dMbXB3Wnd8ZjM5MThiM2YxZWY0NmZlOTY1YWUyYmFlNmU1MzYzZDlhMTcxMTY1NDZhYzAxYjYwNjk3ZmY4YzAyOTg0YjU3YQ "9-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-one")
![Thumbnail of 9-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-one](/medias/M0670.jpg?context=bWFzdGVyfHJvb3R8MTYxMTR8aW1hZ2UvanBlZ3xhRFV6TDJnd1lTODRPVE0xTnprek1EazROemd5TDAwd05qY3dMbXB3Wnd8Yzk1ZGFhMzI3MzZkMWEzOWNhNjIzM2M0NDRiMDEwYTJiNjcyNmFiZmY3MDQxMzdjOGU1MGI0NmUxZDBmNDk3NA)
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![9-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-one](/_ui/responsive/theme-tci/images/missing_product_zoom.jpg "9-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-one")
Purity: >99.0%(T)
Synonyms:
- Acid Captor 9M
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| 25G |
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| Product Number | M0670 |
Purity / Analysis Method 
|
>99.0%(T) |
| Molecular Formula / Molecular Weight | C__9H__1__0N__2O = 162.19 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature
|
Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 61751-44-8 |
| Reaxys Registry Number | 19236540 |
| PubChem Substance ID | 87572682 |
| SDBS (AIST Spectral DB) | 19099 |
| MDL Number | MFCD00059749 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity(Nonaqueous Titration) | min. 99.0 % |
| Melting point | 225.0 to 234.0 °C |
Properties (reference)
| Melting Point | 226 °C |
GHS
Related Laws:
Transport Information:
| H.S.code* | 2933.99-000 |
Application
Acid Captor 9M: Effective Acid Captor of Mukaiyama Condensation Reaction
Experimental procedure: To a mixture of 2-chloro-1-methylpyridinium iodide (308 mg, 1.2 mmol) and acid captor 9M (388 mg, 2.4 mmol) is added an acetonitrile solution (18 mL) of a carboxylic and (1.0 mmol) and an amine (1.0 mmol) at room temperature under an argon atmosphere, and the reaction mixture is stirred at room temperature for 4 h. After evaporation of the solvent under reduced pressure the residue is separated by silica gel thin layer chromatography to give the corresponding amide.
References
- Pyrimidone Derivatives as Effective Acid Captors. A Method for the Preparation of Carboxamides
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