Journal of Organic Chemistry p. 4011 - 4019 (1990)
Update date:2022-08-05
Sauers, R. R.
Hadel, L. M.
Scimone, A. A.
Stevenson, T. A.
The photochemistry of 4-acylisoxazoles 4, 5, 13, 14, and 17 was investigated in an effort to clarify literature contradictions and anomalies and to provide a more detailed picture of the nature and number of intermediates involved in photoreactions of these systems.In contrast to a previous report on the photorearrangement of 14, both oxazoles expected from a 2H-azirine intermediate have been observed.Wavelength studies of 5 and the derived 2H-azirine 10 revealed evidence for the involvement of at least two distinct product-forming intermediates.The results of quantum yield and laser photolysis measurements for ketones 4, 14, and 17 have been interpreted in terms of rapid openings of triplet states to form diradical-like intermediates coupled with efficient reclosures (70-99percent).
View MoreJiangXi Keyuan Biopharma Co., LTD.
Contact:+86-563-6833666
Address:Guangde Fine Chemical Zone, Anhui Province, China
Hangzhou Bayee Chemical Co.,Ltd.
Contact:+86-571-86990109
Address:No.380, Jiangnan Auenue, Binjiang District, Hangzhou, China
Shanghai Pengkai Chemical Co.,Ltd
Contact:+86-21-60526671
Address:No.4226 Duzhuang Rd Minhang District Shanghai China
Shandong Wanda Organosilicon New Material Co., Ltd
Contact:+86-21-54177116;54302881
Address:R1318 Greenland No. 3 Lane 58 Xinjian East Rd., Minhang
Hangzhou Zhenghan Biological Technology Co., Ltd.
Contact:86-571-88781753
Address:liangzhu yuhang hangzhou city
Doi:10.1016/j.bmcl.2004.11.064
(2005)Doi:10.1039/b413376e
(2005)Doi:10.1021/ja0489240
(2004)Doi:10.1021/jo048414o
(2005)Doi:10.1016/j.tetlet.2008.08.102
(2008)Doi:10.1016/j.bmc.2004.12.001
(2005)
