Benzyl chloroformate → HCID 86599133, compound

Participants

Reaction Steps

Treatment of (±)-1-[7-(3-fluorophenyl)-2,3-dihydro-1-benzofuran-2-yl]methanamine (798 g, 6.382.86 mmol) with diisopropylethylamine (0.554 g, 4.29 mmol) followed by benzyl chloroformate (0.536 g, 3.14 mmol) generally according to the procedure described for Intermediate 12 provided 1.01 g (94%) of (±)-benzyl {[7-(3-fluorophenyl)-2,3-dihydro-1-benzofuran-2-yl]methyl}carbamate as a white solid. Rf=0.41 (silica, ethyl acetate:hexanes 2:8); Anal. calcd. for C23H20FNO3: C, 73.2; H, 5.34; N, 3.71. Found: C, 72.96H, 5.38; N, 3.59. Chiral HPLC separation of (±)-benzyl {[7-(3-fluorophenyl)-2,3-dihydro-1-benzofuran-2-yl]methyl}carbamate (Chiralpak OD, isopropanol:hexane 2:8) provided two fractions. Fraction 1 (Rt=7.675 min, Chiralpak OD, isopropanol:hexane 2:8); Fraction 2 (Rt=9.182 min, Chiralpak OD, isopropanol:hexane 2:8).

Provenance & Evidence