Tracking "invisible" alkylchlorocarbenes by their sigma --> p absorptions: dynamics and solvent interactions.

@article{Moss2007TrackingA,
  title={Tracking "invisible" alkylchlorocarbenes by their sigma --> p absorptions: dynamics and solvent interactions.},
  author={Robert A Moss and Jingzhi Tian and Ronald R. Sauers and Karsten Krogh-Jespersen},
  journal={Journal of the American Chemical Society},
  year={2007},
  volume={129 32},
  pages={10019-28}
}
Contrary to implications in the literature, the sigma --> p absorptions of alkylchlorocarbenes (RCCl) are readily acquired by laser flash photolysis with UV-vis detection in solution at ambient temperature. Examples include RCCl with R = methyl, benzyl, t-butyl, 1-adamantyl, and cyclopropyl. These absorptions permit direct monitoring of carbene reactions and the formation of carbene-solvent complexes. The kinetics of the reactions of "free" and complexed MeCCl and PhCH2CCl were directly… CONTINUE READING

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