Process for preparing distyrylbiphenyl compounds

Details Process for preparing distyrylbiphenyl compounds Process for preparing distyrylbiphenyl compounds

C - Chemistry, Metallurgy

07

C

C07C 309/32 (2006.01) C07C 303/32 (2006.01) C07C 309/39 (2006.01) C11D 3/42 (2006.01) D06L 3/12 (2006.01) D21H 21/30 (2006.01) D21H 21/32 (2006.01)

Patent

CA 2105371

Process for preparing distyrylbiphenyl compounds Abstract of the disclosure: Process for preparing distyrylbiphenyl compounds by condensation of a substituted or unsubstituted 4,4'-bis(dialkoxyphosphonomethyl)biphenyl compound with a substituted or unsubstituted benzaldehyde in liquid ammonia as the solvent and in the presence of strong bases; and the use of these distyrylbiphenyl compounds as fluorescent whitening agents.

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