Publication — IRIC

Mild and Diazo-Free Synthesis of Trifluoromethyl-Cyclopropanes Using Sulfonium Ylides.

The synthesis of several 1,1-disubstituted trifluoromethyl-cyclopropanes (TFCPs), known as tert-butyl bioisosteres, has been achieved from the reaction between trifluoromethylalkenes and unstabilized sulfonium ylides in yields of ≤97%. This method offers practical access to this cyclopropyl moiety of pharmacological interest, employing a commercially available reagent at low temperatures. The synthesis of cyclopropanes bearing other electron-withdrawing groups as well as trisubstituted TFCPs was also accomplished.

Date de publication
5 avril 2019
Cyr P, Flynn-Robitaille J, Boissarie P, Marinier A
Référence PubMed
Org. Lett. 2019;21(7):2265-2268
ID PubMed
Medicinal Chemistry, Institute of Research in Immunology and Cancer , Université de Montréal , Montreal , QC H3C 3J7 , Canada.