Hexane → Ethyl 4-[1-(2,2-dimethoxyethyl)-2-{1(tol-4-yl)3,4-dihydro-4,4-dimethyl-naphthalen-7-yl}-(E)-ethenyl]-benzoate

HRID 2606

반응식

HRID 2606 반응식
C(OP([C:9]([O:25][CH3:26])([O:23][CH3:24])[CH2:10][CH2:11][C:12]1[CH:22]=[CH:21][C:15]([C:16]([O:18][CH2:19][CH3:20])=[O:17])=[CH:14][CH:13]=1)(OCC)=O)C.[Li]CCCC.CCCCCC.[C:38]1([CH3:58])[CH:43]=[CH:42][C:41]([C:44]2[C:53]3[C:48](=[CH:49][CH:50]=[C:51]([CH:54]=O)[CH:52]=3)[C:47]([CH3:57])([CH3:56])[CH2:46][CH:45]=2)=[CH:40][CH:39]=1>C1COCC1>[CH3:26][O:25][CH:9]([O:23][CH3:24])[CH2:10]/[C:11](/[C:12]1[CH:13]=[CH:14][C:15]([C:16]([O:18][CH2:19][CH3:20])=[O:17])=[CH:21][CH:22]=1)=[CH:54]\[C:51]1[CH:52]=[C:53]2[C:48]([C:47]([CH3:57])([CH3:56])[CH2:46][CH:45]=[C:44]2[C:41]2[CH:40]=[CH:39][C:38]([CH3:58])=[CH:43][CH:42]=2)=[CH:49][CH:50]=1

참가 물질

6

반응물 4

HCID 8058HexaneHCID 57037360Ethyl 4-(diethoxyphosphoryl-3,3-dimethoxypropyl)benzoateHCID 865886771-(Tol-4-yl)3,4-dihydro-4,4-dimethyl-7-naphthaldehyde2회HCID 178418339Butyllithium

생성물 1

HCID 86588679Ethyl 4-[1-(2,2-dimethoxyethyl)-2-{1(tol-4-yl)3,4-dihydro-4,4-dimethyl-naphthalen-7-yl}-(E)-ethenyl]-benzoate

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

To a cold (-78° C.) solution of ethyl 4-(diethoxyphosphoryl-3,3-dimethoxypropyl)benzoate (Compound D, 350 mg, 0.9 mmol, available in accordance with EPO Application No. 0 210 929 published on Feb. 4, 1987), in THF (9 mL), was added n-BuLi in hexane (1.6M solution, 0.7 mL, 1.1 mmol). The mixture was stirred for 1.5 hours. To this solution 1-(tol-4-yl)3,4-dihydro-4,4-dimethyl-7-naphthaldehyde (Compound C, 200 mg, 0.72 mmol), in THF (1 mL) was added and the mixture was gradually warmed to ambient temperature (4 h). The reaction was quenched by adding water (5 mL), and extracted with ethyl acetate (3×25 mL). The organic layer was washed with brine (10 mL), dried with MgSO4 and the solvent was removed by distillation. The crude material was purified by silicagel chromatography to afford the title compound as a colorless off.

후처리

  1. customThe reaction was quenched
  2. additionby adding water (5 mL)
  3. extractionextracted with ethyl acetate (3×25 mL)
  4. washThe organic layer was washed with brine (10 mL)
  5. dry with materialdried with MgSO4
  6. customthe solvent was removed by distillation
  7. customThe crude material was purified by silicagel chromatography

출처 및 근거

ORD 기록
ord-1b0e8d298ae64c8b9df10e43febd3af1
출처 데이터셋
uspto-grants-1998_03
특허 번호
US05728846

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