4,4′-Divinyl-2,2′-bipyridine (2) was prepared in 12% overall yield from 4,4′-dimethyl-2,2′-bipyridine (3) via a 5 step reaction sequence involving the intermediate 4,4′-R₂-2,2′-bipyridines: R = COOH, 4; CO₂CH₃, 5; CH₂OH, 6; CHO, 7. The newly synthesized compounds 2, 6 and 7 were characterized by melting point, infrared, ¹H nmr, mass spectrometry and elemental analysis.

中文翻译：

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4,4'-二乙烯基-2,2'-联吡啶的合成

通过涉及中间体4的5步反应序列，由4,4'-二甲基-2,2'-联吡啶（3）以12％的总产率制备4,4'-二乙烯基-2,2'-联吡啶（2）。，4'-R ₂ -2,2'-联吡啶：R = COOH，4；CO ₂ CH ₃，5 ; CH ₂ OH，6；CH ₂ OH，6。CHO，7岁。通过熔点，红外光谱，¹ H nmr，质谱和元素分析对新合成的化合物2、6和7进行了表征。