関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Water | HCID 962 | — |
| 反応物 | Cesium carbonate | HCID 10796 | — |
| 反応物 | 2-Isopropoxyethyl 4-methylbenzenesulfonate | HCID 19099443 | — |
| 反応物 | 7-chloro-2,2-dimethyl-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)-one | HCID 136359100 | — |
| 溶媒 | Acetonitrile | HCID 6342 | — |
| 溶媒 | Ethyl Acetate | HCID 8857 | — |
| 生成物 | 7-chloro-1-(2-isopropoxyethyl)-2,2-dimethyl-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)-one | HCID 68034539 | 59.4% |
反応手順
To 0.200 g of 7-chloro-2,2-dimethyl-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)-one suspended in 7 mL of CH3CN, 0.65 g of cesium carbonate and 0.51 g of 2-isopropoxyethyl 4-methylbenzenesulfonate are added. The mixture is heated to 65° C. for 36 h. Water, ethyl acetate are added and then after decantation, the organic phase is dried with magnesium sulfate and then evaporated. The crude is purified by flash chromatography on silica gel (CH2Cl2/MeOH, 99/1). 0.17 g (yield=45%) of 7-chloro-1-(2-isopropoxyethyl)-2,2-dimethyl-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)-one are obtained as a brown powder.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US08815853B2 |
|---|
| 出典データセット | uspto-grants-2014_08 |
|---|
| ORD ID | ord-ccf501ae24a54f1397e08b43a7be80bf |
|---|
| 出典メモ | uspto-grants-2014_08 |
|---|
