92439-00-4Relevant articles and documents
Iridium-Catalyzed Cycloisomerization of Alkynoic Acids: Synthesis of Unsaturated Lactones
Huang, Yi,Zhang, Xianghe,Dong, Xiu-Qin,Zhang, Xumu
supporting information, p. 782 - 788 (2020/01/08)
The iridium-catalyzed cycloisomerization of various alkynoic acids was successfully developed, and a series of five-, six-, and especially seven-membered unsaturated lactones were constructed with moderate yields and excellent regioselectivities (up to 68
External oxidant-free dehydrogenative lactonization of 2-arylbenzoic acids via visible-light photocatalysis
Shao, Ailong,Zhan, Jirui,Li, Na,Chiang, Chien-Wei,Lei, Aiwen
, p. 3582 - 3589 (2018/04/14)
An external oxidant-free C-H functionalization/C-O bond formation reaction for constructing benzo-3,4-coumarins accompanied by quantitative H2 evolution has been developed. High functional group tolerance and excellent reaction efficiency are s
One-Pot Sequential N-Heterocyclic Carbene/Rhodium(III) Catalysis: Synthesis of Fused Polycyclic Isocoumarins
Youn, So Won,Yoo, Huen Ji
supporting information, p. 2176 - 2183 (2017/07/07)
A one-pot sequential N-heterocyclic carbene–rhodium (NHC-Rh) catalysis is described, demonstrating the compatibility of NHC and Rh catalysts. N-Heterocyclic carbene-catalyzed aerobic oxidation of benzaldehydes and subsequent rhodium(III)-catalyzed oxidative 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 protocol under air provides access to a diverse array of valuable fused polycyclic isocoumarins. (Figure presented.).
