反応式
[C:1]1([CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][Mg]Br)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CO[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=1[C:25]1[O:26][CH2:27][C:28]([CH3:31])([CH3:30])[N:29]=1.[C:32]1([CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45]O)[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1.C(Br)(Br)(Br)[Br:48].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>O1CCCC1.C(Cl)Cl>[C:1]1([CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][Br:48])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:32]1([CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[C:25]2[O:26][CH2:27][C:28]([CH3:31])([CH3:30])[N:29]=2)[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1参加物
反応物 5
生成物 2
試薬・触媒・溶媒 2
実験手順
Following the procedures of Example 1(a), (b) and (c), to 8-phenyloctylmagnesium bromide (from 24.25 mmoles of 8-phenyloctyl bromide and 21.27 mmoles of magnesium) in distilled tetrahydrofuran (40 ml) was added 2-(2-methoxyphenyl)-4,4-dimethyloxazoline (17.10 mmoles) in tetrahydrofuran (20 ml). [The 8-phenyloctyl bromide was prepared from 8-phenyloctanol, carbon tetrabromide and triphenylphosphine in methylene chloride as described in Example 6(a).] After stirring for 24 hours, the reaction mixture was similarly worked up to yield 2-[2-(8-phenyloctyl)phenyl]-4,4-dimethyloxazoline as an oil. A solution of the oxazoline (11.58 mmoles) in methyl iodide (20 ml) was refluxed under argon for 18 hours. Removal of the volatiles afforded the corresponding 3,4,4-trimethyloxazolinium iodide as a white solid (mp 76.5°-78° C.). To an ice cold solution of the iodide (9.46 mmoles) in methanol (35 ml) was added in portions sodium borohydride (9.20 mmoles). Treatment of the reaction mixture as in Example 1(c) results in the isolation of the desired product as an oil.
出典と根拠
- ORDレコード
- ord-b5379f04937e4943bd6b30391ad80a7a
- 出典データセット
- uspto-grants-1988_03
- 特許番号
- US04730005
関連ノート
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