反応式
[Br-].[O:2]1[CH2:7][CH2:6][CH2:5][O:4][CH:3]1[CH2:8][CH2:9][P+](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.CC([O-])(C)C.[K+].[C:35]([C:37]1[CH:42]=[CH:41][C:40]([C@H:43]2[CH2:48][CH2:47][C@H:46]([C@H:49]3[CH2:54][CH2:53][C@H:52]([CH:55]=O)[CH2:51][CH2:50]3)[CH2:45][CH2:44]2)=[CH:39][CH:38]=1)#[N:36]>C1COCC1>[O:4]1[CH2:5][CH2:6][CH2:7][O:2][CH:3]1[CH2:8][CH:9]=[CH:55][C@H:52]1[CH2:53][CH2:54][C@H:49]([C@H:46]2[CH2:45][CH2:44][C@H:43]([C:40]3[CH:39]=[CH:38][C:37]([C:35]#[N:36])=[CH:42][CH:41]=3)[CH2:48][CH2:47]2)[CH2:50][CH2:51]1参加物
反応条件
- 温度
- -20 °C
実験手順
A mixture of (2-(1,3-dioxan-2-yl)ethyl)triphenylphosphonium bromide (25.0 g, 54.7 millimols) with THF (150 ml) was cooled down to -20° C., followed by adding t-BuOK (6.1 g, 54.7 millimols) to the mixture, stirring for 30 minutes, dropwise adding to the mixture, a THF (80 ml) solution of trans-4-(trans-4-(4-cyanophenyl)cyclohexyl)cyclohexanecarbaldehyde (14.4 g, 49.8 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 2, except that the quantity of ethyl acetate used for extraction was made 400 ml, to obtain raw 4-(trans-4-(trans-4-(3-(1,3-dioxan-2-yl)propenyl)cyclohexyl)cyclohexyl)benzonitrile (17.5 g).
後処理
- additiondropwise adding to the mixture
- customat -20° C.
- stirringlower, stirring the mixture at the same temperature for 2 hours
- additiontreating the reaction product in the same manner as in Example 2
- extractionexcept that the quantity of ethyl acetate used for extraction
出典と根拠
- ORDレコード
- ord-a1349c1cfa6d421c9be6f9bfbae78a1e
- 出典データセット
- uspto-grants-1998_02
- 特許番号
- US05720899
関連ノート
読み込み中…