4767-56-0Relevant articles and documents
Stereoselective synthesis of (Z)-3-ylidenephthalides via AlCl3-mediated cyclization with 2-acylbenzoic acids
Feng, Ziming,Jiang, Jianshuang,Li, Gangsheng,Wang, Xujie,Yang, Yanan,Zhang, Peicheng,Zhang, Xu
, (2020)
An efficient method for the synthesis of (Z)-3-ylidenephthalides is reported in moderate to high yield with AlCl3 as catalyst. Different substrates of the 2-acylbenzoic acids are well performed in the Z/E selectivity. This method is highlighted
Use of Imidazo[1,5-a]pyridin-3-ylidene as a Platform for Metal-Imidazole Cooperative Catalysis: Silver-Catalyzed Cyclization of Alkyne-Tethered Carboxylic Acids
Rawat, Vishal Kumar,Higashida, Kosuke,Sawamura, Masaya
, p. 1631 - 1637 (2021/02/03)
Silver complexes with 5-(4-(tert-butyl)-1H-imidazol-1-yl)-imidazo[1,5-a]pyridin-3-ylidene ligands were synthesized as metal-imidazole acid-base cooperative catalysts. Single crystal XRD analysis revealed that the silver atom was located in the vicinity of
Iridium-Catalyzed Cycloisomerization of Alkynoic Acids: Synthesis of Unsaturated Lactones
Huang, Yi,Zhang, Xianghe,Dong, Xiu-Qin,Zhang, Xumu
, 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
