Cover Feature: Iron‐Promoted 1,5‐Substitution (SN2′′) Reactions of Enyne Acetates and Oxiranes with Grignard Reagents (Asian J. Org. Chem. 10/2017)

Autor: Taç, Doğan, Aytaç, İsmet Arınç, Karatavuk, Ali Osman, Kuş, Melih, Ziyanak, Fırat, Artok, Levent
Zdroj: Asian Journal of Organic Chemistry; October 2017, Vol. 6 Issue: 10 p1330-1330, 1p
Abstrakt: Iron Age: Iron‐promoted reactions of enyne oxiranes or acetate derivatives of 2‐en‐4‐yne alcohols with Grignard reagents produce (E)‐configured vinylallenes. The reaction cycle involves two successively formed organoiron intermediates: first, a π‐allyl iron intermediate forms. Then, the subsequent shift of the iron unit to the distal alkynyl carbon leads to a lower energy intermediate, σ‐allenyl iron complex. More information can be found in the Full Paper by Levent Artok et al. on page 1415 in Issue 10, 2017(DOI: 10.1002/ajoc.201700225).
Databáze: Supplemental Index