Unusual chemical behavior of 1-(2-chloroethyl)-4-hydroxymethylpyrazoles at heating.

The article discusses the chemical behavior of 1-(2-Chloroethyl)-4-hydroxymethylpyrazoles using distillation process. It mentions that the obtained 4-hydroxymethylpyrazoles were isolated by distillation only in 20-30% yield except for compound whose yield reached 75%. It examines the abnormal behavior of the compounds under distillation in a series of N-alkyl-4-hydroxymethylpyrazoles.