Synthesis and reactivity of aryl- and alkyl-rhenium(V) imido-triflate compounds: An unusual mechanism for triflate substitution

Organometallics

Volumn 18, Issue 18, 1999, Pages 3715-3727

  McNeil, W Stephen ^a   DuMez, Darin D ^a   Matano, Yoshihiro ^a   Lovell, Scott ^a   Mayer, James M ^a  

^a UNIVERSITY OF WASHINGTON   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000648688     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om980914i     Document Type: Article

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59. The phenoxy triflate complex TpRe(O)OPh(OTf) reacts more slowly with pyridine N-oxide than the phenyl complex. There is no reaction at -73°C, and substitution requires roughly 1 h at -33°C at typical NMR-tube concentrations.
60. 2 (10 mol %), reaction rates become faster than expected, probably due to the increase in solvent polarity.
61. 1/2 ≅ 10 days at 65°C), this reaction competes with tosylate substitution by py.
62. 30
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