Journal of the Chemical Society. Perkin transactions I p. 1695 - 1698 (1996)
Update date:2022-08-30
Topics:
Crombie, Leslie
Dove, Roderick V.
The structure, and mechanism of formation, of the pyrone-glutaconic anhydride (GP1) obtained by treatment of diaikylxanthophanic enols with concentrated H2SO4 or F3CCO2H, is further supported, and a new example GP2 is prepared. Experiments with deuteriated acids show that deuterium is introduced at C-5′ and the unchelated acetyl of GP1, the second acetyl being apparently protected by chelation. This is supported by benzenoid test examples, though in the naphthalene series acetyl migration also occurs through deacylation/reacylation. An explanation of the protective effect of chelation against acid catalysed enolisation of the acetyl methyl is suggested.
View MoreZhuzhou Farshine Chemical Industry Co., Ltd
Contact:0086-731-28482786
Address:No. 1,Shui Xian Road, He Tang Dictrict,Hunan-412000,China
Rizhao Lanxing Chemical Indusrial Co.,Ltd
Contact:86-633-2616708
Address:NO.15 West road Shenglan, Lanshan district, Rizhao City
Contact:+86-20-32051076
Address:1105,Building A, International Business Incubator,Science City
BAODING SINO-CHEM INDUSTRY CO.,LTD
Contact:0312-5956088
Address:NO.8 FUXING ROAD,CHINA
Zhejiang Genebest Pharmaceutical Co.,Ltd.
Contact:0086-571-63532866
Address:No.1 Jinboshi Rd Lishan Town Fuyang City Zhejiang Province China
Doi:10.1271/bbb.67.1443
(2003)Doi:10.1016/j.jorganchem.2014.11.009
(2015)Doi:10.1139/v64-425
(1964)Doi:10.1016/j.taap.2021.115573
(2021)Doi:10.1021/acs.orglett.8b02546
(2018)Doi:10.1002/cssc.201601765
(2017)
