Studies on Heterocyclic Colouring Matters Part II: ?2,2? -Bi (2H-1, 4-benzothiazines)
作者:B. L. Kaul
DOI:10.1002/hlca.19740570846
日期:——
of formation, colour and other relevant properties of this system have been investigated in relation to known thioindigos. A synthesis of the basic skeleton of one of the ‘Trichosiderins’, the colouring matters of human red hair, is reported.
一种新的单步的Δ的“逆靛蓝合成” 2,2' -bi(3,4-二氢-3-氧代-2- ħ -1,4-苯并噻嗪)发色团进行说明。已经针对已知的硫靛蓝研究了该系统的结构,取代反应,形成机理,颜色和其他相关特性。据报道,一种“ Trichosiderins”的基本骨架是人类红头发的着色物质的合成。