Dibromodifluoromethane → 4-[2-Fluoro-4-(4'-pentyl-1,1'-bicyclohexane-4-yl)phenyl]difluoromethylenecyclohexane

HRID 552031ノート

反応式

HRID 552031 の反応式
Br[C:2](Br)([F:4])[F:3].C(N(P(N(CC)CC)N(CC)CC)CC)C.[F:22][C:23]1[CH:28]=[C:27]([CH:29]2[CH2:34][CH2:33][CH:32]([CH:35]3[CH2:40][CH2:39][CH:38]([CH2:41][CH2:42][CH2:43][CH2:44][CH3:45])[CH2:37][CH2:36]3)[CH2:31][CH2:30]2)[CH:26]=[CH:25][C:24]=1[CH:46]1[CH2:51][CH2:50][C:49](=O)[CH2:48][CH2:47]1>C1COCC1>[F:22][C:23]1[CH:28]=[C:27]([CH:29]2[CH2:30][CH2:31][CH:32]([CH:35]3[CH2:40][CH2:39][CH:38]([CH2:41][CH2:42][CH2:43][CH2:44][CH3:45])[CH2:37][CH2:36]3)[CH2:33][CH2:34]2)[CH:26]=[CH:25][C:24]=1[CH:46]1[CH2:47][CH2:48][C:49](=[C:2]([F:4])[F:3])[CH2:50][CH2:51]1

参加物

5

反応物 3

HCID 6382DibromodifluoromethaneHCID 75292Hexaethylphosphorous triamideHCID 671716804-[2-Fluoro-4-(4'-pentyl-1,1'-bicyclohexane-4-yl)phenyl]cyclohexanone

生成物 1

HCID 669672054-[2-Fluoro-4-(4'-pentyl-1,1'-bicyclohexane-4-yl)phenyl]difluoromethylenecyclohexane収率 84.8%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒3 回

反応条件

温度
10 °C

実験手順

Dibromodifluoromethane (16.2 g) and THF (30 ml) were put into a vessel under a nitrogen atmosphere and cooled to 10° C. Trisdiethylaminophosphine (38.2 g) in THF (50.0 ml) solution was added dropwise thereto and the stirring was continued for another 60 minutes. The compound (T-8) (16.5 g) in THF (400 ml) solution was then added dropwise in the temperature range of 20° C. to 35° C., and allowed to react overnight while the reaction mixture was coming to room temperature. The reaction mixture obtained was poured into ice-water (400 ml) and mixed. Organic and aqueous layers were separated by adding toluene (300 ml) and the aqueous layer was extracted with toluene. The organic layers combined were washed sequentially with water, 3N-hydrochloric acid and water, and dried over anhydrous magnesium sulfate. The solution was concentrated under reduced pressure and purified by means of column chromatography (silica gel; heptane/ethyl acetate), giving 4-[2-fluoro-4-(4′-pentyl-1,1′-bicyclohexane-4-yl)phenyl]difluoromethylenecyclohexane (T-9) (15.1 g). The yield based on the compound (T-8) was 85%.

後処理

  1. customto react overnight while the reaction mixture
  2. customwas coming to room temperature
  3. customThe reaction mixture obtained
  4. additionmixed
  5. customOrganic and aqueous layers were separated
  6. additionby adding toluene (300 ml)
  7. extractionthe aqueous layer was extracted with toluene
  8. washThe organic layers combined were washed sequentially with water, 3N-hydrochloric acid and water
  9. dry with materialdried over anhydrous magnesium sulfate
  10. concentrationThe solution was concentrated under reduced pressure
  11. custompurified by means of column chromatography (silica gel; heptane/ethyl acetate)

出典と根拠

ORDレコード
ord-ba1be3b5e589496986a265a786a6c0cb
出典データセット
uspto-grants-2011_05
特許番号
US07951432B2

反応ノート

読み込み中…