1
The 1H-NMR range associated with substance 4 revealed signals assignable to some set of A single,4-disubstituted aromatic wedding rings [�� Seven.Twenty-two (2H, d, T Equates to 7.A few Hz), 6.71 (2H, d, J Is equal to 8.5 Hz), Some.Eighty three (2H, deb, J = 7.Five Hz), and also Half a dozen.62 (2H, d, T = 8.Five Hertz)], one One particular,Only two,Four,6-tetra tried perfumed diamond ring [�� Som