制备了一组取代的内部乙烯基三氟硼酸钾,并将其用于钯催化的与芳基和杂芳基卤化物的交叉偶联反应。在甲苯中,在Cs 2 CO 3的存在下,在回流下,Pd(PPh 3)4作为催化剂在甲苯/ H 2 O中易于进行交叉偶联反应。该方法对于内部三氟硼酸乙烯基酯原料是区域特异性的,并且可以耐受多种官能团。取代的内部乙烯基三氟硼酸酯的这一独特集合可轻松用于研究药物应用中。
nickel-catalyzed vinylation of 2-azaallyl anions is advanced for the first time. This method affords diverse vinyl aryl methyl amines with high enantioselectivities, which are frequently occurring scaffolds in natural products and medications. This C–H functionalization method can also be extended to the synthesis of enantioenriched 1,3-diamine derivatives by employing suitably elaborated vinyl bromides.
Eine einfache Synthese für 2-Aminomethyl-indene. 11. Mitteilung über metallorganische Reaktionen and Folgeprodukte
作者:Adrian Marxer
DOI:10.1002/hlca.19820650142
日期:1982.2.3
To obtain the title compounds 1-aminomethyl-substituted α-vinyl-benzyl alcohols of type 13 are treated with concentrated sulfuric acid in acetic or propionic acid containing small amounts of their anhydrides to give aminomethyl - indenes in excellent yield. Depending on the benzyl alcohols used, the new indenes are substituted at C(2) by an aminomethyl group, and at C(3) by various substituents, examples
SUBSTITUTED INTERNAL VINYL-BORONIC ACIDS AND BORONIC ACID DERIVATIVES
申请人:Math Shivanand K.
公开号:US20120041193A1
公开(公告)日:2012-02-16
Disclosed herein are vinyl-bromides, vinyl-boronic acids and vinyl-boronic acid derivatives useful as synthetic intermediates for the preparation of therapeutic agents. Also disclosed are methods of synthesis of vinyl-bromides, vinyl-boronic acids and vinyl-boronic acid derivatives.