One-Pot Sequential N-Heterocyclic Carbene/Rhodium(III) Catalysis: Synthesis of Fused Polycyclic Isocoumarins
作者:So Won Youn、Huen Ji Yoo
DOI:10.1002/adsc.201700072
日期:2017.7.3
A one‐pot sequential N‐heterocyclic carbene–rhodium (NHC‐Rh) catalysis is described, demonstrating the compatibility of NHC and Rh catalysts. N‐Heterocyclic carbene‐catalyzedaerobicoxidation of benzaldehydes and subsequent rhodium(III)‐catalyzedoxidative coupling/annulation with multiple bonds enabled the formation of two C–O bonds and one C–C bond in a single pot. This operationally easy, one‐pot
Rhodium- and Iridium-Catalyzed Oxidative Coupling of Benzoic Acids with Alkynes via Regioselective C−H Bond Cleavage
作者:Kenji Ueura、Tetsuya Satoh、Masahiro Miura
DOI:10.1021/jo070735n
日期:2007.7.1
coupling of benzoicacids with internal alkynes effectively proceeds in the presence of [Cp*RhCl2]2 and Cu(OAc)2·H2O as catalyst and oxidant, respectively, to produce the corresponding isocoumarin derivatives. The copper salt can be reduced to a catalytic quantity under air. Interestingly, by using [Cp*IrCl2]2 in place of [Cp*RhCl2]2, the substrates undergo 1:2 coupling accompanied by decarboxylation to afford
Synthesis of Benzo-Fused Cyclic Compounds via Rhodium-Catalyzed Decarboxylative Coupling of Aromatic Carboxylic Acids with Alkynes
作者:Tetsuya Satoh、Yasuhito Inai、Yoshinosuke Usuki
DOI:10.1055/a-1416-6997
日期:2021.9
The decarboxylativecoupling of diversely substituted benzoic acids with internal alkynes proceeds smoothly in the presence of a [RhCl(cod)]2/1,2,3,4-tetraphenyl-1,3-cyclopentadiene catalyst system to selectively produce highly substituted naphthalene derivatives. The catalyst system is applicable to constructing anthracene and benzo[c]thiophene frameworks through reactions of naphthoic and thiophene-2-carboxylic