Direct observation of reductive elimination of methyl iodide from a rhodium(III) pincer complex: The importance of sterics

Journal of the American Chemical Society

Volumn 128, Issue 38, 2006, Pages 12434-12435

  Frech, Christian M ^b   Milstein, David ^a  

^a WEIZMANN INSTITUTE OF SCIENCE   (Israel)

^b UNIVERSITY OF ZURICH   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

METHYL IODIDE; RHODIUM COMPLEX;

ARTICLE; COMPLEX FORMATION; MOLECULAR DYNAMICS; PHOSPHORUS NUCLEAR MAGNETIC RESONANCE; PROTON NUCLEAR MAGNETIC RESONANCE; REACTION ANALYSIS; REDUCTION; STEREOCHEMISTRY;

EID: 33749182822     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja064945d     Document Type: Article

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20. Although no intermediates were observed by NMR spectroscopy, rapidly reversible interaction of 2b with CO cannot be excluded.
21. Reaction of 2a with CO at -50 °C resulted in 4a exclusively, indicating that it is the kinetic product. Upon warming up to room temperature, an equilibrium mixture of 17% 4a, 83% 4b was obtained, which did not change upon cooling to -50 °C.
22. - may have no rate effect.
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