反应详情

A THF (60 mL) solution of 2-carboxymethyl-4-nitro-benzoic acid (3.0 g , 13.3 mmol) was treated with borane-THF complex (53.3 mL, 53.3 mmol) over 15 min at 0° C. The reaction was stirred for 18.5 hrs, quenched with THF/water (1:1, 30 mL), water (20 mL) added and the layers separated. The aqueous layer was reextracted with THF (30 mL); the combined organic phase washed with brine, dried with magnesium sulfate, and solvent removed under vacuum to give the product as a white solid (2.06 g, 78%) mp=79-81° C.

1. customquenched with THF/water (1:1, 30 mL), water (20 mL)
2. additionadded
3. customthe layers separated
4. washthe combined organic phase washed with brine
5. dry with materialdried with magnesium sulfate, and solvent
6. customremoved under vacuum