反应详情

To a solution of sodium metal (20 mg) in methanol (30 ml) was added the R(+)-enantiomer of [(5,6-dichloro-2,3,9,9a-tetrahydro-3-oxo-9a-propyl-1H-fluoren-7-yl)oxy]acetonitrile (1.0 g, 2.9 mMole). The reaction mixture was stirred for 1-1/2 hours in a dry nitrogen atmosphere then treated with dimethylamine hydrochloride (475 mg, 5.8 mMole) and stirring was continued for 21/2 hours. The methanol was evaporated in vacuo, the residue was dissolved in water, treated with 10N NaOH (1 ml), extracted with diethyl ether containing 10% tetrahydrofuran, washed with water and brine, dried over potassium carbonate and evaporated in vacuo. The residue was dissolved in a mixture of ethanol and diethyl ether, treated with ethanolic HCl, filtered under nitrogen and washed with diethyl ether to give 0.8 g of the R(+)-enantiomer of N,N-dimethyl-2-[(5,6-dichloro-9a-propyl-3-oxo-2,3,9,9a-tetrahydro-1H-fluoren-7-yl)oxy]ethanimidamide hydrochloride hemihydrate.

1. stirringstirring
2. custom2 hours
3. customThe methanol was evaporated in vacuo
4. dissolutionthe residue was dissolved in water
5. additiontreated with 10N NaOH (1 ml)
6. extractionextracted with diethyl ether containing 10% tetrahydrofuran
7. washwashed with water and brine
8. dry with materialdried over potassium carbonate
9. customevaporated in vacuo
10. dissolutionThe residue was dissolved in a mixture of ethanol and diethyl ether
11. additiontreated with ethanolic HCl
12. filtrationfiltered under nitrogen
13. washwashed with diethyl ether