Tetrahedron Letters p. 2751 - 2752 (1986)
Update date:2022-08-05
Topics:
Le Floc'H, Yves
Lefeuvre, Martine
The synthesis of two new dihydroxy phenacylidene triphenylphosphoranes from 2,4-dibenzoyloxy and 2,5-dibenzoyloxy acetophenones is described.By acylation of the hydroxyl groups of these ylides, intramolecular olefination of the ester carbonyl group and hydrolysis of the second ester group, some 6-hydroxy and 7-hydroxy chromones are prepared with good yields.
View MoreZhengzhou Institute of Chiral Pharmer Research Co., Ltd.
Contact:86-371-55219111
Address:15 Floor, 2 Building, Central China Technovalley, Zhongyuan West Road
HANGZHOU EVC CHEMICAL CO.,LTD.(expird)
Contact:+86-571-88296056
Address:Room#3001,Zhejiang Chemical Market,No.10,Road Shenban,Hangzhou,Zhejiang,China
Contact:+86-519-86623222
Address:29F/D, 99 Yanling West Road, Changzhou, Jiangsu, China
Contact:86-571-61063068
Address:LINAN
QINGDAO HONG JIN CHEMICAL CO.,LTD.
website:http://www.hongjinchem.com
Contact:+86-532-83657313
Address:2ND Building, 8 Shangqing Road, Qingdao, Shandong Province, China.
Doi:10.1016/0022-328X(86)82045-9
(1986)Doi:10.1021/ic800508t
(2008)Doi:10.1016/j.jinorgbio.2012.02.032
(2012)Doi:10.1016/j.tet.2008.08.005
(2008)Doi:10.1002/anie.200802459
(2008)Doi:10.1016/j.ejmech.2007.12.006
(2008)
