Ni(<scp>ii</scp>)-catalyzed mono-selective <i>ortho</i>-arylation of unactivated aryl C–H bonds utilizing amino acids as a directing group
作者:Zhanqing Cong、Feng Gao、Hong Liu
DOI:10.1039/c9ra00749k
日期:——
The nickel(II)-catalyzed ortho-arylation of unactivated C–H bonds utilizing amino acids as directing groups with aryl iodides or bromides as coupling electrophiles is described. This protocol features excellent mono-selectivity, good regioselectivity, and wide functional group tolerance. Additionally, the obtained products bearing a biaryl motif and an amino acid represent bioactive molecules with
描述了镍 ( II ) 催化的未活化 C-H 键的邻位芳基化,利用氨基酸作为导向基团,芳基碘化物或溴化物作为偶联亲电体。该协议具有优异的单选择性、良好的区域选择性和广泛的官能团耐受性。此外,获得的带有联芳基基序和氨基酸的产物代表了具有广泛生物活性的生物活性分子。
2-(4-Alkenylphenyl)-5-oxazolones and polymers thereof
申请人:POLAROID CORPORATION
公开号:EP0463520A1
公开(公告)日:1992-01-02
Disclosed are certain 2-(4-alkenylphenyl)-5-oxazolones useful in the production of polymers containing pendant functional groups obtained by nucleophilic ring-opening addition reactions, the 2-(4-alkenylphenyl)-5-oxazolones having the formula
wherein R1 is hydrogen or alkyl; each of R2 and R3 is hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, or R2 and R3 together with the carbon atom to which they are bonded constitute a carbocyclic or heterocyclic ring.
2-(4-alkenylphenyl)-5-oxazolones and polymers thereof
申请人:Polaroid Corporation
公开号:US05039813A1
公开(公告)日:1991-08-13
Disclosed are certain 2-(4-alkenylphenyl-5-oxazolones useful in the production of polymers containing pendant functional groups obtained by nucleophilic ring-opening addition reactions, the 2-(4-alkenylphenyl)-5-oxazolones having the formula ##STR1## wherein R.sup.1 is hydrogen or alkyl; each of R.sup.2 and R.sup.3 is hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, or R.sup.2 and R.sup.3 together with the carbon atom to which they are bonded constitute a carbocyclic or heterocyclic ring.