反応式
[CH3:1][NH:2][CH3:3].[F:4][B-:5]([F:8])([F:7])[F:6].C(O[C:12]([C:18]([O:20][CH2:21][CH3:22])=[O:19])=[CH:13][CH:14]=[N+:15]([CH3:17])[CH3:16])C.C(OCC)C>C(Cl)Cl>[F:4][B-:5]([F:8])([F:7])[F:6].[CH3:1][N:2]([CH3:3])[C:12]([C:18]([O:20][CH2:21][CH3:22])=[O:19])=[CH:13][CH:14]=[N+:15]([CH3:17])[CH3:16]参加物
5
実験手順
A solution of dimethylamine (233 cc) in methylene chloride is added in the course of 1 hour 20 minutes, at a temperature of approximately 20° C., to a solution of N-(3-ethoxy-3-ethoxycarbonylpropenylidene)-N-methylmethanaminium tetrafluoroborate (1,007 g) in methylene chloride. Anhydrous ethyl ether (2,000 cc) is then run slowly into the reaction medium, and the crystalline product is then separated off by filtration and dried under reduced pressure (20 mm Hg; 2.7 kPa) at a temperature of approximately 20° C. N-(3-Dimethylamino-3-ethoxycarbonylpropenylidene)-N-methylmethanaminium tetrafluoroborate (925 g), m.p. 102° C., is thereby obtained.
後処理
- customthe crystalline product is then separated off by filtration
- customdried under reduced pressure (20 mm Hg; 2.7 kPa) at a temperature of approximately 20° C
出典と根拠
- ORDレコード
- ord-6c30ed02d468450493491dda1e297617
- 出典データセット
- uspto-grants-1989_12
- 特許番号
- US04886835
関連ノート
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