1421187-03-2Relevant academic research and scientific papers
Copper-catalyzed (4+1) and (3+2) cyclizations of iodonium ylides with alkynes
Liang, Hao,He, Xiaobo,Zhang, Yaqi,Chen, Bin,Ouyang, Jia-Sheng,Li, Yongsu,Pan, Bendu,Subba Reddy, Chitreddy V.,Chan, Wesley Ting Kwok,Qiu, Liqin
supporting information, p. 11429 - 11432 (2020/10/12)
The copper(ii)-catalyzed (4+1) cyclizations and copper(i)-catalyzed (3+2) cycloadditions of iodonium ylides and alkynes were successfully developed by employing efficient and safe iodonium ylides instead of traditional diazo compounds. Highly functionaliz
Catalytic Atropenantioselective Heteroannulation between Isocyanoacetates and Alkynyl Ketones: Synthesis of Enantioenriched Axially Chiral 3-Arylpyrroles
Zheng, Sheng-Cai,Wang, Qian,Zhu, Jieping
supporting information, p. 1494 - 1498 (2019/01/04)
We report herein the first examples of catalytic enantioselective synthesis of axially chiral 3-arylpyrroles. Reaction of α-isocyanoacetates with β-aryl-α,β-alkynic ketones in the presence of silver oxide and a phosphine ligand derived from Cinchona alkal
Palladium(II)-catalyzed asymmetric cycloisomerization of enynes for axially chiral biaryl construction
Kadoya, Nobuaki,Murai, Masato,Ishiguro, Masako,Uenishi, Jun'Ichi,Uemura, Motokazu
supporting information, p. 512 - 514 (2013/02/25)
Palladium(II)-catalyzed asymmetric cycloisomerization of enynes with (R)-binap gave axially chiral biaryls with up to 99%ee. The reactivity and enantioselectivity depended on the nature and position of substituent of the arene ring. The enynes with ortho methoxy arene at alkyne terminus gave chiral biaryls with good enantioselectivity.
