Tetrahedron p. 9023 - 9042 (1997)
Update date:2022-08-04
Topics:
Curran, Dennis P.
Gu, Xin
Zhang, Wei
Dowd, Paul
A new type of mechanistic probe for the intramolecular samarium Barbier reaction has been designed, and two different probe substrates have been investigated in detail. Remarkably, no unambiguous evidence could be obtained in favor of any of the obvious intermediates (free alkyl or alkoxy radicals, ketyls, organosamarium species) that are postulated for this reaction. Several possibilities for modified mechanisms are suggested.
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