申请人:SUN COMPANY, INC. (R&M)
公开号:EP0655438A2
公开(公告)日:1995-05-31
New chemical compounds, bis(pyrrol-2-yl)halocarbylmethanes, also known as meso-halocarbyl dipyrromethanes, are made by recting pyrrole in either of two reaction schemes. Once such scheme converts pyrrole through an intermediate, a halocarbyl carbonyl pyrrole, to a [2-(1-hydroxyl-1-hydro-1-halocarbyl)pyrrole], and then converts the latter to the desired halocarbyldipyrromethane; the last step in this scheme is a novel and useful method in itself. The other such sequence converts pyrrole, by reaction with a halocarbyl aldehyde, directly to the desired halocarbyl dipyrromethane.
5,5'-unsubstituted-meso-halocarbyl dipyrromethanes are useful precursors to linear di-, tri-, tetra- and polypyrrolic compounds, as well as cyclic polypyrrolic compounds such as porphyrins, azaporphyrins, expanded polypyrrolic macrocycles and their metal derivatives.
新化合物双(吡咯-2-基)卤羰基甲烷,又称中卤羰基二吡咯甲烷,是通过两种反应方案中的任何一种将吡咯整流制成的。一种方案是通过中间体--卤羰基吡咯将吡咯转化为[2-(1-羟基-1-氢-1-卤羰基)吡咯],然后将后者转化为所需的卤羰基二吡咯甲烷;该方案的最后一步本身就是一种新颖而有用的方法。另一种方法是通过与卤代羰基醛反应,将吡咯直接转化为所需的卤代羰基二吡咯甲烷。
5,5'-未取代的甲基卤代羰基二吡咯甲烷是线性二吡咯、三吡咯、四吡咯和多吡咯化合物以及环状多吡咯化合物(如卟啉、氮卟啉、扩展多吡咯大环及其金属衍生物)的有用前体。