您的地位: 一分快3 >News>具体内容

News

Transition-metal- and oxidant-free directed anodic C-H sulfonylation of N,N-disubstituted anilines with sulfinates

来源:一分快3 发布时候: 2021-12-03 14:00:10 阅读次数: 【字体:

A new, practical directed anodic C–H sulfonylation of N,N-disubstituted anilines with sodium sulfinates for producing o- or p-amino arylsulfones and diarylsulfones is described. Employing the anodic strategy, the reaction proceeds efficiently under mild (room temperature) and transition-metal- and chemical oxidant-free conditions, and enables the formation of C–S bonds via directed activation of ortho- or para-C–H bond to the amino group with broad substrate scope and excellent site selectivity.

The disclosure is directed the formulation and application of an anti-corrosion coating system for use on an associated metallic substrate, the coating composition including at least a sacrificial binder and particles of at least one metallic compound comprising a metal which is anodic relative to the metallic substrate. The associated method includes the steps of applying the coating system to the metallic substrate to form an initial coating, heating this initial coating to remove the sacrificial binder and continued heating under controlled atmospheric conditions sufficient to reduce the metallic compound(s) to elemental metal and form a corrosion suppressing alloy coating on the metallic substrate.

 

终审: 网站办理员
一分快3 一分快3平台 一分快3官网 三分快三 三分快三官网 分分快三 分分快三官网 分分快三下载 分分快三平台 分分快3 分分快3平台