Journal of the Chemical Society. Perkin transactions II p. 1343 - 1349 (1983)
Update date:2022-08-04
Topics:
Verheijdt, Paul L.
Cerfontain, Hans
The photoaddition of five non-enolizing 1,2-diketones (1a-e), bipivaloyl, and biacetyl to various simple alkenes has been investigated.The dihidrodioxine formation dominates over the formation of oxetane, α-keto allylic ether, and 1,2-adduct (α-hydroxyketone) for three cyclic 1,2-diketones (1b-d) that have a syn-periplanar (lowest) excited 1,2-diketo configuration.The four-membered ring diketone (1a) photo-fragments prior to its addition to the alkene.Biacetyl with an anti-periplanar excited 1,2-diketo configuration does not form dihydrodioxines.No information on the geometry of the excited 1,2-diketo configuration could be obtained with (1e) and (2), as the rate of α-cleavage
Wuxi Zuping Food Science And Technology Co.,LTD.
Contact:+86-510-87210822
Address:Guanlin town
Beijing Green Guardee Technology CO,.LTD
Contact:+86-10-69706062
Address:F2 BLdj,5 No.37 Chaoqian Road
Contact:852-27701081
Address:Room 2509, New Tech Plaza, 34 Tai Yau St., San Po Kong, HK
Shenzhen Sunrising Industry Co., ltd.
Contact:+86 755 86571158 / 86571159 / 86571160
Address:2108 ZHENYE INT. BUSINESS CENTER,NO.3101-90 QIANHAI RD, NANSHAN,SHENZHEN, CHINA
Melone Pharmaceutical Co., ltd
Contact:+86-411 82593920, 82593631
Address:No 232, JInma Roda, Development Zone, Dalian, China
Doi:10.1016/j.bmc.2006.01.015
(2006)Doi:10.1016/j.bmc.2005.12.047
(2006)Doi:10.1002/chem.202102031
(2021)Doi:10.1016/j.jphotochem.2010.02.009
(2010)Doi:10.1016/j.tetlet.2006.02.032
(2006)Doi:10.1246/cl.2008.622
(2008)
