30436-19-2Relevant academic research and scientific papers
CARBENES IN MATRICES: REACTIONS AND REARRANGEMENTS
Sander, W.W.,Patyk, A.,Bucher, G.
, p. 21 - 32 (1990)
Carbenes and silylenes with a variety of substituents have been isolated and characterized in low temperature matrices.Reactions of these species with small molecules, especially 3O2, have been studied.The structure of the primary addition products as well as the reactivity as a function of the spin-state (triplet T or singlet S) is discussed.
Time-resolved IR studies of & α-lactones
Showalter, Brett M.,Toscane, John P.
, p. 743 - 748 (2007/10/03)
A series of & α-lactones were generated from the reaction of phenylchlorocarbene, 4-nitrophenylchlorocarbene, diphenylcarbene, bis(4-nitrophenyl)carbene and bis(4-methoxyphenyl)carbene with carbon dioxide and examined by nanosecond time-resolved infrared (TRIR) spectroscopy. Estimated second-order rate constants for the reaction of these carbenes with carbon dioxide indicate that more nucleophilic carbenes react at faster rates, in agreement with previous low-temperature matrix experiments. Spectral TRIR data confirms that the structure of & αlactones is dependent both on substituents at the & α-carbon and on solvent polarity, with electron-donating substituents and polar solvents favoring a zwitterionic ring-opened structure as opposed to the three-membered ring oxiranone form. B3LYP calculations using self-consistent reaction field (SCRF) methods also provide support for these experimental investigations. Copyright
Reaction of Diphenylmethylene with Carbon Dioxide: Matrix Isolation of Diphenyloxiranone
Sander, Wolfram W.
, p. 4265 - 4267 (2007/10/02)
The thermal or photochemical reaction of matrix-isolated diphenylmethylene and CO2 produces the highly unstable diphenyloxiranone, which was characterized by IR spectroscopy, isotopic labeling, and subsequent photochemistry.
