Primary intermediates for oxidative coloration of hair
申请人:——
公开号:US20020148052A1
公开(公告)日:2002-10-17
Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1):
1
wherein R
1
and R
2
are each independently selected from hydrogen atoms, a C
1
to C
5
alkyl or hydroxyalkyl group, or R
1
and R
2
together with the nitrogen atom to which they are attached form a 5 or 6 member cyclic ring optionally containing one or more additional atoms selected from O, N or S atoms, and n is equal to 1 or 2, with the proviso that when n is equal to 2 only one of R
1
and R
2
may be hydrogen.
用于氧化染发的染发组合物的主要中间体是式 (1) 的化合物:
1
其中 R
1
和 R
2
各自独立地选自氢原子、C
1
至 C
5
烷基或羟烷基,或 R
1
和 R
2
与它们所连接的氮原子一起形成一个 5 或 6 个成员的环,该环可选地含有一个或多个选自 O、N 或 S 原子的附加原子,且 n 等于 1 或 2,但当 n 等于 2 时,只有一个 R
1
和 R
2
可以是氢。
MITTEL ZUM FÄRBEN VON KERATINHALTIGEN FASERN
申请人:Henkel Kommanditgesellschaft auf Aktien
公开号:EP1233744B1
公开(公告)日:2005-12-07
PRIMARY INTERMEDIATES FOR OXIDATIVE COLORATION OF HAIR