Nickel-catalyzed C–H/N–H annulation of aromatic amides with alkynes in the absence of a specific chelation system
作者:Atsushi Obata、Yusuke Ano、Naoto Chatani
DOI:10.1039/c7sc01750b
日期:——
of KOBut involves C–H/N–H oxidative annulation to give 1(2H)-isoquinolinones. A key to the success of the reaction is the use of a catalytic amount of strong base, such as KOBut. The reaction shows a high functional group compatibility. The reaction with unsymmetrical alkynes, such as 1-arylalkynes, gives the corresponding 1(2H)-isoquinolinones with a high level of regioselectivity. This discovery would
具有在甲部存在炔芳族酰胺的Ni基催化的反应吨涉及C-H / N-H的氧化环,得到1-(2 ħ)异喹啉酮。反应成功的关键是使用催化量的强碱,例如KOBu t。该反应显示出高的官能团相容性。与不对称炔烃,例如1-芳基炔烃的反应,得到具有高区域选择性的相应的1(2 H)-异喹啉酮。这一发现将导致开发镍催化的螯合辅助的C–H功能化反应,而无需特定的螯合系统。