Water → HCID 14650455、化合物
反応式
Br[C:2]1([C:8]2[O:9][C:10]3[C:18]([CH2:19][C:20]#[N:21])=[CH:17][CH:16]=[CH:15][C:11]=3[C:12](=[O:14])[CH:13]=2)[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3]1.[OH2:22]>>[C:2]1([C:8]2[O:9][C:10]3[C:18]([CH2:19][C:20]([NH2:21])=[O:22])=[CH:17][CH:16]=[CH:15][C:11]=3[C:12](=[O:14])[CH:13]=2)[CH2:7][CH2:6][CH2:5][CH2:4][CH:3]=1参加物
3
反応条件
- 温度
- 120 °C
実験手順
2-(1-Bromocyclohexyl)-8-cyanomethyl-4-oxo-4H-[1]-benzopyran (3.0 g) was added to polyphosphoric acid (120 ml) and the mixture was heated on an oil bath at about 120° C. for 2 hours. After standing overnight, water (about 300 ml) was added to decompose polyphosphoric acid. Crystals deposited were filtered off and recrystallized form the mixed solvent of dichloromethane and methanol to obtain the title compound, yield 57%.
後処理
- filtrationCrystals deposited were filtered off
- customrecrystallized form the mixed solvent of dichloromethane and methanol
出典と根拠
- ORDレコード
- ord-e6c1a28b1f2b451da736b2207e9f5ead
- 出典データセット
- uspto-grants-1990_02
- 特許番号
- US04904690
反応ノート
読み込み中…