4-Hydroxybenzaldehyde → HCID 136381052, compound

Participants

Reaction Steps

2.85 g of 5-hydroxy-1-hydroxyethyl-3-methyl-1H-pyrazole and 2.45 g of 4-hydroxybenzaldehyde in 30 mL of 2-butanol were allowed to reflux. After 16 h, the reaction mixture was cooled, then poured onto 100 mL of glacial acetic acid and filtered. This gave 3.3 g of a by-product, probably the acetal of the following formula:

Provenance & Evidence