Methylphenylglyoxal + methylamine -----> ephedrine?
C6H5-CH(-OH)-C(=O)-CH3 + CH3NH2 ==> C6H5-CH(-OH)-C(=NCH3)-CH3 + H2O
OR
C6H5-CH(-OH)-C(-OH)-CH3 + H3O+ ==> C6H5-CH2-C(=O)-CH3 P2P
Methylphenylglyoxal ist for me the name of this structure:
C6H5-C(=O)-C(=O)-CH3
C6H5-C(=O)-C(=O)-CH3 + CH3-NH2 ==> C6H5-C(=O)-C(=N-CH3)-CH3 + H2O
C6H5-C(=O)-C(=N-CH3)-CH3 + 2H2 ==[Ni cat]==> C6H5-CH(-OH)-CH(-NH-CH3)-CH3 Ephedrine