1.
RSC Adv
; 13(11): 7432-7435, 2023 Mar 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-36895764
RESUMO
Asymmetric ring-opening reactions of donor-acceptor cyclopropanes with 1,3-cyclodiones have been established for the synthesis of enantioenriched γ-hydroxybutyric acid derivatives in the presence of Cu(ii)/trisoxazoline catalyst. These reactions offered the desired products in 70% to 93% yields with 79% to 99% enantiomeric excesses.
2.
Org Biomol Chem
; 19(44): 9645-9648, 2021 11 18.
Artigo
em Inglês
| MEDLINE
| ID: mdl-34730170
RESUMO
[3 + 2] annulations of oxindole based spirocyclic donor-acceptor cyclopropanes and ynamides catalyzed by copper triflate have been developed for the synthesis of biologically important spirocyclopenteneoxindoles. These reactions tolerated a wide scope of substrates and provided the desired products in good to high yields (up to 90%) with up to >40 : 1 diastereoselectivities under mild conditions.