Tripyrrolidinophosphoric acid triamide as an activator in samarium diiodide reductions.
The electrochemical and spectrophotometric characterization of the complex formed from samarium diiodide and 4 equiv of tripyrrolidinophosphoric acid triamide (TPPA) is presented. Kinetic studies indicate that the SmI(2)/TPPA complex possesses reactivity greater than the complex formed between samarium diiodide and 4 equiv of HMPA. Examples of the use of SmI(2)/TPPA in synthesis are presented.
Department of Chemistry, Lycoming College, Williamsport, Pennsylvania 17701, United States. mcdonald@lycoming.edu
Chriss E
CE
McDonald
Jeremy D
JD
Ramsey
David G
DG
Sampsell
Julie A
JA
Butler
Michael R
MR
Cecchini