Journal of the Chemical Society. Perkin transactions I p. 1555 - 1566 (1980)
Update date:2022-08-05
Topics:
Murphy, William S.
Wattanasin, Sompong
The phenolic enones (4), (5), (8), (9), and (13) cyclise readily under acidic conditions.However, neither these nor the thio-substituted phenols (11a), (13a), (14a), and (15a) closed under basic conditions.Involvement of unfavourable equilibria is disproved.Comparison is made with related successful cyclisations of the saturated ketone (38) and aldehyde (39).Preliminary results suggest that strict stereo-electronic requirements are necessary for enone ring closure and that these conditions are not met in base-catalysed 5-Endo- and 6-Endo-Trigonal ring closures of the phenols of general type (2; n=0 and n=1).
View MoreJIANGXI ZHANGFENG CHEMICAL CO., LTD.
Contact:+86-0799-3413066
Address:Xiyuan village, Xiabu Town, Xiangdong District
Jinan Hongfangde Pharmatech Co.LTD
Contact:0531-88870908
Address:F Bldg,750#,Shunhua Rd,New&High-tech Zone,Jinan,Shandong,China 250101
Jiaozuo Zhongwei Special Products Pharmaceutical Co.,Ltd.
website:http://www.zw-pvp.com
Contact:15302105619
Address:Jiaozuo,Henan,China (Mainland)
Jiangsu Chiatai Qingjiang Pharmaceutical Co.,Ltd
Contact:+86-517-86283327
Address:9 North Hantai Road, Huaian, China
WEIFANG RICHEM INTERNATIONAL LTD
Contact:86-536-2222176
Address:weifang,shandong
Doi:10.1080/10426500601161049
(2007)Doi:10.1016/j.bmcl.2015.05.007
(2015)Doi:10.1248/cpb.28.2653
(1980)Doi:10.1021/jm00134a019
(1981)Doi:10.1007/BF00957243
(1987)Doi:10.1016/j.tet.2011.08.017
(2011)
