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Iron-mediated Cycloaddition Reactions for Fe(1,3-Butadiene)2L+ (L=Ethyne, Propyne) Complexes in the Gas Phase. Butadiene/Butadiene Versus Butadiene/Alkyne Cycloaddition

✍ Scribed by Ray Bakhtiar; Jared J. Drader; Robin K. Arneson; Denley B. Jacobson

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 428 KB
Volume: 10
Category: Article
ISSN: 0951-4198
DOI: 10.1002/(sici)1097-0231(199608)10:11<1405::aid-rcm665>3.0.co;2-r

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✦ Synopsis

Competitive iron-mediated cycloaddition of butadiene with butadiene versus cycloaddition of butadiene with alkynes in Fe

) complexes in the gas phase, observed using Fourier transform mass spectrometry (FTMS), is described. The preference for 14 +2] cycloaddition between lgbutadiene and alkynes over butadienelbutadiene cycloaddition is observed. Reactions of Fe(C,H,); with labeled ethyne and propyne, collision-activated dissociation (CAD) studies, RaCtiOR kinetics, and their branching ratios are discussed.