A novel reaction mode of a η-acyl inserting into a C-C bond: The chemistry associated with vanadium(III) bonded to a meso-octaethyl bis(pyridine)-bis(pyrrole) macrocycle
Organometallics, ISSN: 0276-7333, Vol: 15, Issue: 12, Page: 2685-2687
1996
- 6Citations
- 2Captures
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Article Description
The doubly homologated meso-octaethylpor-phyrinogen 1, containing two pyridine and two pyrrole rings in cis arrangements, allowed the synthesis of highly reactive vanadium(III) organometallics, via the intermediacy of 2, [Et(m-MeCHN)(CH N)(CHN)-Li(THF) ], and 3, [Et(m-MeCHN)(CH N)CHN)V-Cl]. This latter complex has been converted to the corresponding [V-Me] derivative 4, [Et(m-MeCHN)-(CH N)(CHN)V-Me], which undergoes a facile carbonylation to 5, Et(m-MeCHN)(CH N)(CHN)V-OC(CEt )(Me)]. The intermediate η-acyl derivative thus found displayed an unusual carbenoid reactivity inserting into a C-C bond.
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