Question

Why is diphenyl cyclic in structure????

pls it's urgent

Answer 1

A series of 1,5-diphenyl-1,4-pentadiene-3-ones and cyclic analogues with OH-groups in the para position of the phenyl rings and various meta substituents were prepared and their antioxidant activity compared with that of curcumin. Most of them exhibited potent antioxidative activity, especially when all the meta positions were substituted by methoxy groups.

Answer 2

diphenyl anologues with OH groups in the para position of the phenyl rings and various meta substituents were prepared and their antioxidant activity compared with that of curcumin.most of them exhibited potent antioxidant activity, especially when all the meta positions were substituted by methoxy group .₹_@ thus diphenyl is cyclic in structure.....