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| | 3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE Basic information |
| Product Name: | 3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE | | Synonyms: | LABOTEST-BB LT00847264;ACID CAPTOR H;Dihydropyridopyrimidinone;3,4-DIHYDRO-2-PYRIDOL[1,2-A]PYRIMIDINONE;3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE;2H-Pyrido[1,2-a]pyrimidin-2-one,3,4-dihydro-;3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE 98+%;3,4-dihydropyrido[1,2-a]pyrimidin-2-one | | CAS: | 5439-14-5 | | MF: | C8H8N2O | | MW: | 148.16 | | EINECS: | 226-618-2 | | Product Categories: | Condensation & Active Esterification;Synthetic Organic Chemistry;Esterification ReagentsBuilding Blocks;Alkylation Reagents;Derivatization Reagents;Heterocyclic Building Blocks;Pyrimidines | | Mol File: | 5439-14-5.mol | ![3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE Structure](CAS/GIF/5439-14-5.gif) |
| | 3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE Chemical Properties |
| Melting point | 185-187 °C | | Boiling point | 271℃ | | density | 1.26 | | Fp | 118℃ | | storage temp. | Sealed in dry,Room Temperature | | solubility | Chloroform (Sparingly), Methanol (Slightly) | | form | Solid | | pka | 2.83±0.20(Predicted) | | color | Light Yellow | | BRN | 3667723 |
| Safety Statements | 22-24/25 | | WGK Germany | 3 | | F | 9-23 | | HS Code | 29339900 |
| | 3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE Usage And Synthesis |
| Purification Methods | Dissolve it in CHCl3, filter, evaporate, then recrystallise the residue from EtOH/Me2CO (needles) which can be washed with Et2O and dried. It can also be recrystallised from CHCl3/pet ether or CHCl3/hexane. The hydrochloride has m 295-295o (dec, from EtOH or MeOH/Et2O), the hydrobromide has m 299-300o(dec) (from MeOH/Et2O) and the picrate has m 224-226o(corr), m 219-220o from EtOH. [Adams & Pachter J Am Chem Soc 74 4906 1952, Lappin J Org Chem 23 1358 1958, Hurd & Hayao J Am Chem Soc 77 115 1955, Beilstein 24 III/IV 299.] |
| | 3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE Preparation Products And Raw materials |
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