Isopropanol → HCID 14698740、化合物
反応式
Br[C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([Cl:8])[CH:3]=1.C(O[C:12]([CH:14]1[CH2:19][CH2:18][N:17]([C:20]([N:22]([CH2:25][CH3:26])[CH2:23][CH3:24])=[O:21])[CH2:16][CH2:15]1)=[O:13])C.[Cl-:27].[NH4+].[CH3:29][CH:30](O)[CH3:31].O1C[CH2:36][CH2:35][CH2:34]1>>[Cl:8][C:4]1[CH:5]=[CH:6][C:7]([C:12]([C:30]2[CH:31]=[CH:36][C:35]([Cl:27])=[CH:34][CH:29]=2)([OH:13])[CH:14]2[CH2:15][CH2:16][N:17]([C:20]([N:22]([CH2:23][CH3:24])[CH2:25][CH3:26])=[O:21])[CH2:18][CH2:19]2)=[CH:2][CH:3]=1参加物
実験手順
A Grignard solution was prepared by the treatment of a slurry of 8.5 g (0.35 mole) of mangesium chips in 200 ml of dry tetrahydrofuran (THF) with a solution of 72.8 g (0.38 mole) of 1-bromo-3-chlorobenzene in 400 ml of THF. After the addition was complete, the mixture was heated at reflux for 15 min to complete formation. To the Grignard solution at ambient temperature was added a solution of 38.4 g (0.15 mole) of 1-[(diethylamino)carbonyl]-4-piperidine carboxylic acid ethyl ester in 200 ml of THF in a stream. The solution was stirred at ambient temperature overnight and poured into 2.5 liters of a saturated ammonium chloride solution. The layers were separated and the aqueous layer was extracted once with 500 ml of methylene chloride and once with 250 ml of methylene chloride. The combined organic layers were filtered through Celite® and the filtrate was washed successively with 500 ml of water, 750 ml of a 4% sodium hydroxide solution, 250 ml of water and 250 ml of brine. The solution was dried over anhydrous sodium sulfate and concentrated under reduced pressure to give a gum which crystallized. The solid was triturated with petroleum ether (30°-60° C.), collected by filtration, and dried to yield 56.7 g (87,) of a white solid. An analytical sample, m.p. 172°-175° C. was prepared from 2-propanol.
後処理
- additionAfter the addition
- temperaturethe mixture was heated
- temperatureat reflux for 15 min
- customThe layers were separated
- extractionthe aqueous layer was extracted once with 500 ml of methylene chloride and once with 250 ml of methylene chloride
- filtrationThe combined organic layers were filtered through Celite®
- washthe filtrate was washed successively with 500 ml of water, 750 ml of a 4% sodium hydroxide solution, 250 ml of water and 250 ml of brine
- dry with materialThe solution was dried over anhydrous sodium sulfate
- concentrationconcentrated under reduced pressure
- customto give a gum which
- customcrystallized
- customThe solid was triturated with petroleum ether (30°-60° C.)
- filtrationcollected by filtration
- customdried
- customto yield 56.7 g (87,) of a white solid
出典と根拠
- ORDレコード
- ord-0bc20f36759f473caedc5a1aeeef38a1
- 出典データセット
- uspto-grants-1989_12
- 特許番号
- US04886794
反応ノート
読み込み中…