反应详情

Followng the procedure of example 18 with the same proportions but replacing 2-phenyl-5-methyl-(3H)-pyrazol-3-one by 2-phenyl-5-phenyl-(3H)-pyrazol-3-one (MW=136.3 g; mp=136° C.) and 2-ethylhexanoyl chloride by lauroyl chloride a solid product is obtained which after recrystallisation in hexane has a melting point of 69° C.

1. customis obtained which
2. customafter recrystallisation in hexane