Methyl Isocyanate → Trans-3-(4-chlorophenoxy)-4-hydroxy-N-methyl-1-pyrrolidinecarboxamide Hemihydrate
反応式
[Cl:1][C:2]1[CH:14]=[CH:13][C:5]([O:6][CH:7]2[CH2:11][NH:10][CH2:9][CH:8]2[OH:12])=[CH:4][CH:3]=1.[CH3:15][N:16]=[C:17]=[O:18]>C(Cl)Cl>[OH2:6].[Cl:1][C:2]1[CH:14]=[CH:13][C:5]([O:6][C@H:7]2[C@H:8]([OH:12])[CH2:9][N:10]([C:17]([NH:16][CH3:15])=[O:18])[CH2:11]2)=[CH:4][CH:3]=1.[Cl:1][C:2]1[CH:14]=[CH:13][C:5]([O:6][C@H:7]2[C@H:8]([OH:12])[CH2:9][N:10]([C:17]([NH:16][CH3:15])=[O:18])[CH2:11]2)=[CH:4][CH:3]=1参加物
4
実験手順
A solution of 0.9 g. of 4-(4-chlorophenoxy)-3-pyrrolidinol in 50 ml. of methylene chloride was cooled to 0° C. and 0.24 g. of methyl isocyanate in 5 ml. of methylene chloride was added dropwise over the period of 10 min. Cooling was discontinued and stirring was continued for 1 hr. Solvent was then removed and the residue was crystallized from dimethylsulfoxide-water; m.p. 95.0°-98.5° C.
後処理
- temperatureCooling
- customSolvent was then removed
- customthe residue was crystallized from dimethylsulfoxide-water
出典と根拠
- ORDレコード
- ord-25df5f40ab7947a5943ca77579573b13
- 出典データセット
- uspto-grants-1986_04
- 特許番号
- US04585785
反応ノート
読み込み中…