Benzaldehyde → (+/-) 3-alpha-Hydroxybenzylpyridazine

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Pyridazine-3-carboxylic acid [prepared as described by Leanza, Becker and Rogers, J.A.C.S., 75, 4086 (1953); 18.6 g.] was mixed with benzaldehyde (44 g.) and p-cymene (360 ml.) and decarboxylated by heating for 3 hours at 135° C. The hot solution was then filtered, cooled and the precipitate collected to give (±) 3-α-hydroxybenzylpyridazine (5.2 g.), m.p. 130°-135° C., in the form of fawn coloured needles.

Herkunft & Nachweise