✦ LIBER ✦

CC bond formation using allylic organozirconium compounds. Nucleophilic additions on to isolated and in situ generated η5-pentadienyl-Fe(CO)3/Fe(CO)2PPh3(+1) cations

✍ Scribed by Leila Motiei; Ilan Marek; Hugo E Gottlieb; Vered Marks; Jean-Paul Lellouche

Publisher: Elsevier Science
Year: 2003
Tongue: French
Weight: 243 KB
Volume: 44
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(03)01363-7

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✦ Synopsis

Two nucleophilic allylic organozirconium compounds 9-10 (R 5 : Me and tBu) have been reacted with acyclic isolated h 5 -pentadienyl-Fe(CO) 3 /Fe(CO) 2 PPh 3 (+1) cations or with these intermediates generated in situ (Uemura-like conditions). Depending on reaction conditions, iron-complexed h 4 -dienyl-Fe(CO) 3 /Fe(CO) 2 PPh 3 and s,h 3 -p-allyl-Fe(CO) 3 /Fe(CO) 2 PPh 3 condensation products have been selectively isolated and fully characterized.