Benzyl Alcohol → HCID 15606559, compound

Participants

Reaction Steps

500 g (2.75 mols) of a mixture of isomers, consisting of 4,6-dimethyl-2,2'-bipyridine (45% by weight), 3,6-dimethyl-2,2'-bipyridine (45% by weight) and 3,5-dimethyl-2,2'-bipyridine (10% by weight), are reacted in accordance with the procedure of Example 1(a). The crude product formed is heated under 133 to 400 Pa for 2 hours at 120° to 125° C. and then for 45 minutes at 170° C. (bath temperature). 299 g of a distillate are thus obtained which has a boiling range of 65°-107° C. and which is composed of 65% by weight of 3,6-dimethyl-2,2'-bipyridine, 7% by weight of 3,5-dimethyl-2,2'-bipyridine as well as 17% by weight of benzyl alcohol and 10% by weight of hexamethylphosphoric acid triamide. The residue is heated under 0.1 Pa and, in a boiling range of 48° -170° C., a mixture distils off which is subjected to a fractional redistillation after di-tert.-butyl-p-cresol has been added as a polymerisation inhibitor. Thus, 51 g of (4-(2-benxyloxy)-ethyl)-6-methyl-2,2'-bipyridine, 11 g of 3,6- and 3,5-dimethyl-2,2'-bipyridine, 105 g of benzyl alcohol and 147 g of 4-vinyl-6-methyl-2,2'-bipyridine (61% of theory) are obtained.

Provenance & Evidence