74268-51-2Relevant articles and documents
Synthesis of chiral diferrocenyl diselenides and their application to asymmetric reactions
Nishibayashi,Nishibayashi, Yoshiaki,Singh,Singh, Jai Deo,Uemura,Uemura, Sakae,Fukuzawa,Fukuzawa, Shin-Ichi
, p. 3115 - 3118 (1994)
Two optically active diferrocenyl diselenides, each of which possesses two chiral centers, were newly prepared from commercial 1-(dimethylamino)ethylferrocenes and applied to induce highly enantioselective selenoxide elimination producing axially chiral allenecarboxylic esters.
Phosphine-Catalyzed Asymmetric Tandem Isomerization/Annulation of Allyl Amines with Allenoates: Enantioselective Annulation of a Saturated C-N Bond
Zhou, Leijie,Zhang, Xue,Wang, Qijun,Liu, Min,Wang, Wei,Wu, Yongjun,Chen, Liezhong,Guo, Hongchao
supporting information, p. 9173 - 9178 (2021/11/30)
Under catalysis by chiral phosphine, an asymmetric isomerization/annulation cascade reaction of allylamines with allenoates was realized. A wide range of γ-substituted allenoates were tolerated to afford chiral pyrroline derivatives in high yields with excellent enantioselectivities. In the reaction, isomerization of readily available N-allylamines to reactive aliphatic imines through a 1,4-proton shift is a key step, which circumvents the isolation of highly unstable alkyl N-sulfonylimines.
Phosphine-catalyzed regiodivergent annulations of γ-substituted allenoates with conjugated dienes
Gan, Zhenjie,Gong, Yanchuan,Chu, Yunpeng,Li, Er-Qing,Huang, You,Duan, Zheng
, p. 10120 - 10123 (2019/08/30)
A phosphine catalyzed regiodivergent annulation of γ-substituted allenoates with conjugated dienes is reported, and highly functionalized cyclohexenes or cyclopentenes were obtained in high yields and regioselectivities. This transformation takes advantag
