2-(6-Methoxy-1-benzofuran-3-yl)acetic acid → 2-(6-Methoxy-2,3-dihydro-1-benzofuran-3-yl)acetic acid

Participants

Reaction Steps

To a mixture of (1,5-cyclooctadiene)rhodium trifluoromethanesulfonate (5.9 mg) and (S,S)-Et-FerroTANE (5.5 mg) was added methanol (2.5 mL) sufficiently substituted by argon gas, and the mixture was stirred at room temperature for 15 min. This was added to a mixture of (6-methoxy-1-benzofuran-3-yl)acetic acid (51.5 mg) and sodium methoxide (7 mg), and the mixture was stirred at room temperature for 5 hr under 0.7 MPa hydrogen atmosphere. The reaction mixture was quantified by HPLC. As a result, the enantiomeric excess was 86.2%, and the yield was 88.4%.

Provenance & Evidence