反应详情

A solution of isobutyl 1-methyl-4-oxocycylohexanecarboxylate (D67, 12.7 g, 59.8 mmol), t-butyl dimethyl 2-methoxyethoxy silane (11.4 g, 59.9 mmol), and anhydrous ferric chloride (250 mg, 1.541 mmol) in acetonitrile (150 mL) at 0° C. was treated with triethylsilane (12 mL, 75 mmol). The mixture was stirred for 1 h at room temperature, then partitioned between saturated sodium bicarbonate and dichloromethane, and the organic layer was dried and evaporated to give isobutyl 1-methyl-4-(2-methoxyethoxy)cyclohexanecarboxylate (27 g, 49.6 mmol, 83% yield) as a cis/trans mixture containing one equivalent of t-butyldimethyl triethyl siloxane.

1. custompartitioned between saturated sodium bicarbonate and dichloromethane
2. customthe organic layer was dried
3. customevaporated