Electron Transfer Driven Addition of Ketimine Derived Radicals to Arene-Cr(CO)3 Complexes
- 31 December 1998
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1998 (12) , 1426-1428
- https://doi.org/10.1055/s-1998-1949
Abstract
The first examples of SmI2 mediated radical cyclizations of ketimines have been achieved with η 6-arene-Cr(CO)3 complexes bearing ketimine sidechains. The cyclization products were obtained in high yield and with significant diastereoselectivity. The reactions seem to proceed via addition of azaketyl-type radicals to the complexed arenes to form 17 VE intermediates which are trapped by single electron transfer to give the corresponding (anionic) 18 VE species.Keywords
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