Phosphorus pentachloride → HCID 12901645、化合物
反応式
[NH2:1][C:2]1[N:7]=[C:6]([O:8][CH3:9])[C:5]([C:10]([OH:12])=O)=[CH:4][N:3]=1.P(Cl)(Cl)(Cl)(Cl)[Cl:14]>C(OCC)C>[ClH:14].[NH2:1][C:2]1[N:7]=[C:6]([O:8][CH3:9])[C:5]([C:10]([Cl:14])=[O:12])=[CH:4][N:3]=1参加物
4
実験手順
To 16.9 g of 2-amino 4-methoxy 5-pyrimidinyl carboxylic acid prepared in stage 2, in suspension in 300 ml of anhydrous ethyl ether, were added at 0° C., 20.8 g of phosphorous pentachloride while stirring. After returning to room temperature for 3 hours, the precipitate was separated by filtration, rinsed several times with 50 ml of absolute ethyl ether. The hydrochloride of the 2-amino 4-methoxy 5-chlorocarbonyl pyrimidine thus obtained was used in the raw state in the following stage.
後処理
- customthe precipitate was separated by filtration
- washrinsed several times with 50 ml of absolute ethyl ether
出典と根拠
- ORDレコード
- ord-e5e9dcf3a4c2432699fbb661ca6a4b19
- 出典データセット
- uspto-grants-1981_02
- 特許番号
- US04250178
反応ノート
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