Study on the solution and solid-state fluorescence of novel BF2 complexes with (Z)-2-[phenanthridin-6(5H)-ylidene]-1-phenylethanone and its derivatives as ligands
Electrochemical Decarboxylative Cyclization of α‐Amino‐Oxy Acids to Access Phenanthridine Derivatives
作者:Yanling Zhan、Changhui Dai、Zitong Zhu、Ping Liu、Peipei Sun
DOI:10.1002/asia.202101388
日期:2022.3.14
compounds found in pharmaceuticals and natural products. Herein, an efficient electrochemical decarboxylative cyclization of α-amino-oxy acids to synthesize phenanthridine derivatives was developed. This reaction proceeded through iminyl radical formation cascade intramolecular cyclization from readily available materials under transition-metal-free and mild conditions.
A robust synthesis of phenanthridines has been described via Pd(II)-catalyzed domino C(sp2)–H activation/N-arylation using oxime esters with aryl acyl peroxides in a highly regioselective manner. This protocol is compatible with acetophenone as well as benzophenone-derived oxime esters and allows modular construction of functionalized phenanthridines with wide tolerance of electronic functionality