1,5-Hydrogen atom transfer from α, β and γ carbons to an alkenyl or aryl radical in cycloalkanones

Comptes Rendus de l'Academie des Sciences - Series IIc: Chemistry

Volumn 4, Issue 6, 2001, Pages 439-442

  Sha, Chin Kang ^a   Ho, Wen Yueh ^a   Mohanakrishnan, A K ^a   Lin, Chiu Ling ^a   Chu, San Yan ^a  

^a NATIONAL TSING HUA UNIVERSITY   (Taiwan)

Author keywords

1,5 hydrogen atom transfer; Aryl radical; Conformational study; Cycloalkanones; Deuterium labeling; Theoretical calculation; Vinyl radical

Indexed keywords

EID: 0035373639     PISSN: 13871609     EISSN: None     Source Type: Journal    
DOI: 10.1016/S1387-1609(01)01262-2     Document Type: Article

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42. Experimental details will be reported in a full paper in due course.
43. Structural features, distances from hydrogen to radical center, discussed here pertain to radical intermediates. We use such information to extrapolate to transition structures, which are more relevant to the observed reactivity of hydrogen abstraction. These radical intermediates show distinct differences in hydrogen-radical distances, which correlate well with relative activities. Computation on transition structures is more challenging and costly; such work is in progress in our group.