[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([NH:10][C@@H:11]([C:13]([OH:15])=[O:14])[CH3:12])=[CH:6][CH:5]=1)([O-:3])=[O:2].N[C@H](C(O)=O)CC1C=CC=CC=1>>[N+:1]([C:4]1[CH:5]=[CH:6][C:7]([NH:10][C@H:11]([C:13]([OH:15])=[O:14])[CH3:12])=[CH:8][CH:9]=1)([O-:3])=[O:2]The reaction described above for 4-nitrophenyl-D-alanine was repeated for the L isomer. About 125 grams of L-Phe was nitrated as described above and resulted in about 124 grams of 4-nitrophenyl-L-alanine (about 77% yield). [α]D =+6.8° (c=1.0 in 1N HCl).
불러오는 중…