1286738-47-3Relevant academic research and scientific papers
PyBidine-Cu(OTf)2-catalyzed asymmetric [3+2] cycloaddition with imino esters: Harmony of Cu-lewis acid and imidazolidine-NH hydrogen bonding in concerto catalysis
Arai, Takayoshi,Ogawa, Hiroki,Awata, Atsuko,Sato, Makoto,Watabe, Megumi,Yamanaka, Masahiro
, p. 1595 - 1599 (2015)
A bis(imidazolidine)pyridine (PyBidine)-Cu(OTf)2 complex catalyzing the endo-selective [3+2] cycloaddition of nitroalkenes with imino esters was applied to the reaction of methyleneindolinones with imino esters to afford spiro[pyrrolidin-3, 3′-
Catalytic asymmetric 1,3-dipolar cycloaddition of N-unprotected 2-oxoindolin-3-ylidene derivatives and azomethine ylides for the construction of spirooxindole-pyrrolidines
Liu, Tang-Lin,Xue, Zhi-Yong,Tao, Hai-Yan,Wang, Chun-Jiang
experimental part, p. 1980 - 1986 (2011/04/25)
Asymmetric 1,3-dipolar cycloaddition of N-unprotected 2-oxoindolin-3- ylidene with azomethine ylides for the construction of spirooxindole- pyrrolidines bearing four contiguous stereogenic centers has been achieved with AgOAc/TF-BiphamPhos complexes for t
