HCID 20638810, compound → HCID 20638811, compound

Participants

Reaction Steps

A solution of 300 mg (1.38 mmol) of 1(R)-phenyl-2(S)-carbomethoxy-cyclohex-5-ene (from Step A) in 30 mL of CH2Cl2 at 0° C. was treated with 2.3 mL of 1.5 M diisobutylaluminum hydride solution in toluene. After stirring for 30 minutes the reaction was quenched with 50 mL of sat'd sodium potassium tartrate solution, diluted with 100 mL of ether and stirred at rt for 20 h. The layers were separated and the organic layer was washed with 75 mL of H2O , dried over MgSO4 and concentrated in vacuo. Flash chromatography on 100 g of silica gel using 5-25% v/v EtOAc/hexanes as the eluant afforded 185 mg (72%) of the title compound as an oil. 1H NMR (CDCl3, 500 MHz) δ 7.23-7.34 (m, 5H), 5.95-5.97 (m, 1H), 5.77-5.79 (m, 1H),3.66 (s, 1H), 3.23-3.32 (m, 2H), 2.14-2.25 (m, 3H),1.51-1.62 (m, 3H) ppm.

Provenance & Evidence