Methyl iodide → HCID 66872729, compound

Participants

Reaction Conditions

Reaction Steps

Step-2: To a solution of 2-benzyl 3-methyl 3,4-dihydroisoquinoline-2,3(1H)-dicarboxylate (3 g, 9.23 mmol) in THF (30 mL) at −80° C. was added sodium hexamethyldisilazane (1M, 23.1 mL, 23.1 mmol) and stirred for 20 min. Methyl iodide (1.44 mL, 23.1 mmol) was added and the reaction was allowed to warm to −20° C. and stirred at −20° C. for 6 h. The reaction was quenched with water, neutralized with 2N HCl and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate and evaporated to afford 2-benzyl 3-methyl 3-methyl-3,4-dihydroisoquinoline-2,3(1H)-dicarboxylate. MS (ES+): m/z 340.20 [M+H]+

Provenance & Evidence