Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China.
University of Chinese Academy of Sciences , Beijing 100049, China.
Org Lett. 2016 Dec 2;18(23):6144-6147. doi: 10.1021/acs.orglett.6b03155. Epub 2016 Nov 14.
Quinazoline N-oxides have been prepared from simple ketoximes and 1,4,2-dioxazol-5-ones via Rh(III)-catalyzed C-H activation-amidation of the ketoximes and subsequent Zn(II)-catalyzed cyclization. The substrate scope and functional group compatibility were examined. The reaction features relay catalysis by Rh(III) and Zn(II).
喹喔啉 N-氧化物可由简单的酮肟和 1,4,2-二恶唑-5-酮通过 Rh(III)催化的酮肟 C-H 活化-酰胺化以及随后的 Zn(II)催化环化来制备。考察了底物范围和官能团相容性。该反应的特点是 Rh(III)和 Zn(II)的接力催化。