Chirality p. 454 - 464 (2021)
Update date:2022-07-30
Topics:
Parasuraman, Perumalsamy
Ganesan, Divakar
Begum, Zubeda
Seki, Chigusa
Okuyama, Yuko
Kwon, Eunsang
Uwai, Koji
Tokiwa, Michio
Tokiwa, Suguru
Takeshita, Mitsuhiro
Nakano, Hiroto
New two catalysts component system comprising of a primary β-amino silyl ethers as an organocatalyst and N-protected amino acids as a co-catalyst put together worked as an efficient organocatalyst system in the hetero Diels–Alder reaction of isatins with enones affording the chiral spirooxindole-tetrahydropyranones in good chemical yields and stereoselectivities (up to 94%, up to dr 78:22., up to 85% ee).
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