Asymmetric Domino Reaction of α,β-Unsaturated Aldehydes and α-Acyl α,β-Unsaturated Cyclic Ketones Catalyzed by Diphenylprolinol Silyl Ether. 2020

Yujiro Hayashi, and Yurina Suga, and Nariyoshi Umekubo
Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan.

An asymmetric domino reaction combining vinylogous Michael reaction, hydration of aldehyde, and oxy-Michael reaction proceeds with α,β-unsaturated aldehydes and α-acyl α,β-unsaturated cyclic ketones in the presence of diphenylprolinol silyl ether to afford tetrahydrochromane derivatives with excellent enantioselectivity. After the domino reaction, addition of Wittig reagent and acid in the same reaction vessel promoted a second domino reaction incorporating retro oxy-Michael reaction, isomerization, and Wittig reaction to afford chiral functionalized cyclic 1,3-diene derivatives with excellent enantioselectivity. Overall, six reaction steps proceed in a one-pot procedure.

UI MeSH Term Description Entries

Related Publications

Yujiro Hayashi, and Yurina Suga, and Nariyoshi Umekubo
July 2019, Organic letters,
Yujiro Hayashi, and Yurina Suga, and Nariyoshi Umekubo
January 2008, Angewandte Chemie (International ed. in English),
Yujiro Hayashi, and Yurina Suga, and Nariyoshi Umekubo
December 2010, Organic letters,
Yujiro Hayashi, and Yurina Suga, and Nariyoshi Umekubo
February 2018, Angewandte Chemie (International ed. in English),
Yujiro Hayashi, and Yurina Suga, and Nariyoshi Umekubo
June 2022, ACS organic & inorganic Au,
Yujiro Hayashi, and Yurina Suga, and Nariyoshi Umekubo
October 2023, Chemistry, an Asian journal,
Yujiro Hayashi, and Yurina Suga, and Nariyoshi Umekubo
July 2022, Chemistry, an Asian journal,
Copied contents to your clipboard!