C-H ACTIVATION;
1ST TOTAL-SYNTHESIS;
PALLADIUM(0)-CATALYZED TANDEM CYCLIZATION;
INTRAMOLECULAR DIRECT ARYLATION;
PROTON-ABSTRACTION MECHANISM;
CARBON BOND FORMATION;
MOLECULAR-OXYGEN;
AEROBIC OXIDATION;
ARYL CHLORIDES;
COORDINATED PALLADIUM(0);
D O I:
10.1021/jo9003376
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
An efficient catalytic system has been developed for the synthesis of carbazoles by one-pot N-arylation and oxidative biaryl coupling. A significant substituent effect of the diarylamine intermediate on oxidative Coupling was observed. Mechanistic studies of oxidative coupling, including trapping of reaction intermediates and kinetic isotope effect experiments, are also presented.