TY - JOUR
T1 - An extremely long-lived singlet 4,4-dimethoxy-3,5-diphenylpyrazolidine-3,5- diyl derivative
T2 - A notable nitrogen-atom effect on intra- and intermolecular reactivity
AU - Abe, Manabu
AU - Kubo, Emi
AU - Nozaki, Koichi
AU - Matsuo, Takashi
AU - Hayashi, Takashi
PY - 2006/11/27
Y1 - 2006/11/27
N2 - Life in the fast lane: An extremely long-lived singlet state of 4,4-dimethoxy-3,5-diphenylpyrazoline-3,5-diyl (1; τ = 9.67 ms at room temperature) is reported, which affords intramolecularly the oxygen-migration product and reacts intermolecularly with 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) to give the cycloaddition product. The diradical intermediate was characterized by its absorption band at 645 nm. (Chemical Equation Presented).
AB - Life in the fast lane: An extremely long-lived singlet state of 4,4-dimethoxy-3,5-diphenylpyrazoline-3,5-diyl (1; τ = 9.67 ms at room temperature) is reported, which affords intramolecularly the oxygen-migration product and reacts intermolecularly with 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) to give the cycloaddition product. The diradical intermediate was characterized by its absorption band at 645 nm. (Chemical Equation Presented).
KW - Photolysis
KW - Quantum chemical calculations
KW - Reactive intermediates
KW - Singlet diradicals
UR - http://www.scopus.com/inward/record.url?scp=33845303198&partnerID=8YFLogxK
U2 - 10.1002/anie.200603287
DO - 10.1002/anie.200603287
M3 - 学術論文
C2 - 17061308
AN - SCOPUS:33845303198
SN - 1433-7851
VL - 45
SP - 7828
EP - 7831
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 46
ER -