PROBLEM TO BE SOLVED: To provide a novel piperazine derivative that can improve the bleaching effect and the decolorization effect of a bleaching agent and a decolorant using hydrogen peroxide as an oxidant such as a detergent for clothes, a mold remover, bleaching of pulp, a hair dyeing agent and the like.SOLUTION: The piperazine derivative is represented by the following general formula (1)[in formula (1), R1 and R2 each independently represent a hydrogen atom, a specific substituent including a hydroxyl group and R1 and R2 are not a hydrogen atom at the same time k is 0 or an integer of 1 to 8 inclusive and R3 represents a 1-24C (inclusive) aliphatic hydrocarbon group or a 5-12C (inclusive) aromatic hydrocarbon group which may have a substituent].COPYRIGHT: (C)2014,JPO&INPIT【課題】衣料用洗剤、カビとり剤、パルプの漂白、染毛剤など、過酸化水素を酸化剤として用いる漂白剤や脱色剤において、その漂白効果や脱色効果を向上できる、新規なピペラジン誘導体を提供する。【解決手段】下記一般式(1)で表されるピペラジン誘導体。【化1】[式(1)中、R1及びR2は、それぞれ独立して、水素原子、又は水酸基を含む特定の置換基を示し、R1、R2は共に水素原子になることはない。kは0又は1以上、8以下の整数である。R3は、炭素数1以上、24以下の脂肪族炭化水素基、又は置換基を有していてもよい炭素数5以上、12以下の芳香族炭化水素基を示す。]【選択図】なし
