Simple Sulfinate Synthesis Enables CH Trifluoromethylcyclopropanation

Ryan Gianatassio, Shuhei Kawamura, Cecil L Eprile, Klement Foo, Jason J. Ge, Aaron C. Burns, Michael R. Collins, Phil S. Baran

Angewandte Chemie International Edition · 2014 · 166 citations · 39 references

Concepts

Abstract

A simple method to convert readily available carboxylic acids into sulfinate salts by employing an interrupted Barton decarboxylation reaction is reported. A medicinally oriented panel of ten new sulfinate reagents was created using this method, including a key trifluoromethylcyclopropanation reagent, TFCS-Na. The reactivity of six of these salts towards C-H functionalization was field-tested using several different classes of heterocycles.

References

39