Tetrahydrofuran → HCID 54257416, compound

HRID 1379460Notes

Reaction equation

HRID 1379460 reaction equation
[CH3:1][N:2]1[C@H:11]2[C@@:6]([CH3:17])([C:7]3[CH:15]=[CH:14][C:13](Br)=[CH:12][C:8]=3[CH2:9][CH2:10]2)[CH2:5][CH2:4][C:3]1=[O:18].[CH3:19][C:20]1[C:25]([CH3:26])=[CH:24][CH:23]=[CH:22][C:21]=1B(O)O.C(=O)([O-])[O-].[Na+].[Na+].C1COCC1>C(Cl)(Cl)Cl>[CH3:1][N:2]1[C@H:11]2[C@@:6]([CH3:17])([C:7]3[CH:15]=[CH:14][C:13]([C:21]4[CH:22]=[CH:23][CH:24]=[C:25]([CH3:26])[C:20]=4[CH3:19])=[CH:12][C:8]=3[CH2:9][CH2:10]2)[CH2:5][CH2:4][C:3]1=[O:18]

Participants

6

Reactant 4

HCID 8028TetrahydrofuranHCID 10340Sodium CarbonateHCID 27733952,3-Dimethylphenylboronic acidHCID 15355317(4aR)-(10bR)-4,10b-dimethyl-8-bromo-1,2,3,4,4a,5,6,10b-octahydrobenzo[f]quinolin-3-one

Product 1

HCID 54257416HCID 54257416, compoundYield 25.4%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

A 15 mL round bottom flask was charged with (+)-(4aR)-(10bR)-4-methyl-8-bromo-10b-methyl-1,2,3,4,4a,5,6,10b-octahydrobenzo[f]quinolin-3-one (200 mg, 0.65 mmol), tetrakis (triphenylphosphine)palladium(0) (23 mg, 0.02 mmol), 2,3-dimethylphenylboronic acid (117 mg, 0.78 mmol), 0.65 mL of 2M sodium carbonate solution and 2 mL of THF, fitted with a reflux condenser, and the stirred mixture was heated at 80°, under nitrogen, for 24 h. The mixture was cooled, diluted with chloroform (50 mL) and washed with brine (2×50 mL). The combined organic extracts were dried over sodium sulfate, concentrated, and purified by silica gel chromatography (ethyl acetate eluent), to give 55 mg (25 %) of the title compound as an amorphous solid. mp 133°-140°. FDMS: m/e=333. α[D]589 =+61.90 (c=1.05, methanol).

Workup

  1. customfitted with a reflux condenser
  2. temperaturethe stirred mixture was heated at 80°, under nitrogen, for 24 h
  3. temperatureThe mixture was cooled
  4. washwashed with brine (2×50 mL)
  5. dry with materialThe combined organic extracts were dried over sodium sulfate
  6. concentrationconcentrated
  7. custompurified by silica gel chromatography (ethyl acetate eluent)

Sources & evidence

ORD record
ord-a7d2dca785054042b5e84f535ebe5a38
Source dataset
uspto-grants-1997_09
Patent number
US05670514

Reaction notes

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