申请人:BUCKMAN LABORATORIES INTERNATIONAL, INC.
公开号:EP0467707A1
公开(公告)日:1992-01-22
A process for the preparation of a 1-hydroxymethylpyrazole comprising combining a methylpyrazole with water and an aqueous formaldehyde solution to form a 1-hydroxymethylpyrazole in a mother liquor, filtering said 1-hydroxymethylpyrazole from said mother liquor, and combining said mother liquor with a second aqueous formaldehyde solution and methylpyrazole.
一种制备1-羟甲基吡唑的过程,包括将甲基吡唑与水和水甲醛溶液混合,形成母液中的1-羟甲基吡唑,从母液中过滤出所述的1-羟甲基吡唑,并将所述的母液与第二个水甲醛溶液和甲基吡唑混合。