Structures of (±)-trans-4-(3-nitrophenyl)- (I) and (+)-trans-4-(4-fluorophenyl)-2-hydroxy-2-methyl-3,4-dihydro-2H,5H-pyrano[3,2-c][1]benzopyran-5-one (II)
Titel:
Structures of (±)-trans-4-(3-nitrophenyl)- (I) and (+)-trans-4-(4-fluorophenyl)-2-hydroxy-2-methyl-3,4-dihydro-2H,5H-pyrano[3,2-c][1]benzopyran-5-one (II)