This work was supported by the Japanese Ministry of Education, Culture, Sports, Science, and Technology [Grant-in-Aid for Scientific Research on Priority Areas (No. 14078203), “Reaction Control of Dynamic Complexes”] (for M.K.) and the Fonds der Chemischen Industrie (for A.d.M.).
The Singlet Excited State of a Stable Dialkylsilylene Is Responsible for Its Photoreactions†
Article first published online: 25 AUG 2004
Copyright © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 43, Issue 34, pages 4510–4512, August 27, 2004
How to Cite
Kira, M., Ishida, S., Iwamoto, T., de Meijere, A., Fujitsuka, M. and Ito, O. (2004), The Singlet Excited State of a Stable Dialkylsilylene Is Responsible for Its Photoreactions. Angew. Chem. Int. Ed., 43: 4510–4512. doi: 10.1002/anie.200460317
- Issue published online: 25 AUG 2004
- Article first published online: 25 AUG 2004
- Manuscript Received: 14 MAY 2004
- carbene homologues;
- laser spectroscopy;
- reaction mechanisms;
The singlet 1,1-diradical (1B1) state of a silylene plays a key role in its photoreactions with benzenes and alkenes, even though similar 1B1 states are rarely encountered in carbene chemistry. The photochemical addition to alkenes should be stepwise and the ring closure of the intermediate singlet 1,3-diradicals was very facile with rates (kc) of more than 109 s−1 (see scheme).