Journal of the Chemical Society. Perkin transactions I p. 344 - 348 (1981)
Update date:2022-08-03
Topics:
Jones, Winton D.
The aminolysis of 4-<(4-oxo-4H-1-benzopyran-3-yl)methylene>-2-phenyl-1,3-oxazol-5(4H)-one with diethylamine gave N-<1-(diethylamino)-1-oxo-3-(4-oxo-4H-1-benzopyran-3-yl)prop-2-en-2-yl>benzamide.The hydrolysis of 2-methyl-4-<(4-oxo-4H-1-benzopyran-3-yl)methylene>-1,3-oxazol-5(4H)-one gave the α-keto-acid, which could be converted into amino-acid derivatives.Condensation of 2-methylchromone with diethyl oxalate, 2-formyl-NN-diethylbenzamide, and 2-formylbenzoic acid gave the α-keto-acid, (E)-NN-diethyl-2-<2-(4-oxo-4H-1-benzopyran-2-yl)vinyl>benzamide, and (E)-2-<(4-oxo-4H-1-benzopyran-2-yl)vinyl>benzoic acid, respectively.
View MoreNanjing Legend Pharmaceutical & Chemical Co., Ltd.
Contact:+86-25-83767696
Address:14-7 Zhongshan Lu Guluo District, Nanjing
SHIJIAZHUANG HENRYTE CHEMICALS CO,.LTD(expird)
Contact:+86-311-85208698 311-80837698
Address:NO.166, yuhua west road, SHIJIAZHUANG, China
Taizhou Green Peptide Trading Co., Ltd.
Contact:13736652831
Address:Room 1501, No71, Yuehe Road, Taizhou City, Zhejiang Province, China
website:https://www.yurisolar.com/en
Contact:86--18092602675
Address:No. 560, East Hangtian Road, Xi'an, China
Shenzhen HwaGen Pharmaceutical Co., Ltd
website:http://www.rafflespt.com
Contact:+86-752-5538396
Address:Guangdong Huizhou China
Doi:10.1071/CH03252
(2004)Doi:10.1080/15421400490435206
(2004)Doi:10.1016/j.bmcl.2010.12.023
(2011)Doi:10.1002/adsc.201300444
(2013)Doi:10.1246/bcsj.54.2855
(1981)Doi:10.1016/S0008-6215(00)85536-6
(1981)
