Journal of the Chemical Society. Perkin transactions I p. 159 - 162 (1990)
Update date:2022-08-03
Topics:
Clawson, Paul
Lunn, Patricia M.
Whiting, Donald A.
The styrene oxides (14) and (15), bearing electron-withdrawing functions, readily undergo thermal and photochemical (triplet sensitised) dipolar cycloadditions with simple electron-deficient olefins, regioselectively in the case of methyl acrylate.However, cycloadditions with 5-arylbutenolides as dipolarophiles, required for lignan synthesis, could not be effected in significant yield.A new short route to 5-arylbut-2-enolides was devised.The dihydro- and tetrahydro-furan adducts (18d), (19d), and (20d) all fragment in base to the dienol nitrile (25).
View MoreDaqing New Century Fine Chemical Co., Ltd.(expird)
Contact:010-57126694
Address:No.39, jinxing cun, honggang district
website:http://www.afinechem.com
Contact:+86-571-85134551
Address:No. 206 Zhen Hua Road, Hangzhou 310030, Zhejiang, China
Hunan Shineway Enterprise Co., Ltd.
Contact:+86-731-86303875
Address:118, Huanghua International Airport Road, Huanghua Town, Changsha, Hunan 410137, China
ZHEJIANG CHEMICAL INDUSTRY INSTITUTE TECHNOLOGY CO.,LTD(expird)
Contact:86-575-82730298
Address:shangyu
Changsha Goomoo Chemical Technology Co.Ltd
Contact:+86-731-82197655
Address:No.649,Chezhan Rd.(N),Changsha,Hunan,China
Doi:10.1016/S0040-4020(01)82377-2
(1993)Doi:10.1139/v93-159
(1993)Doi:10.1002/cplu.201300378
(2014)Doi:10.1016/j.jorganchem.2010.12.037
(2011)Doi:10.1016/0040-4039(90)80013-C
(1990)Doi:10.1039/c0gc00572j
(2011)
