Journal of the Chemical Society. Perkin transactions II p. 1233 - 1238 (1984)
Update date:2022-08-04
Topics:
Sabbagh, Mohamed Mowafak Al
Calmon, Michelle
Calmon, Jean-Pierre
The kinetics of hydrolysis of aryl and alkyl 4-phenylallophanates to phenyl urea and phenol or alcohol are studied.Acid-base catalysis, deuterium solvent isotope effects, and entropy of activation provide good evidence for a changeover in mechanism from E1cB for aryl allophanates to BAc2 for alkyl esters.The parameters of Hammett and Yukawa-Tsuno relationships for aryl esters and the non-linear Bronsted correlation with the pKa values of the leaving groups are in good agreement with the proposed mechanism.
View MoreContact:+86-021-58123769
Address:No.780 of Cailun Road,Zhangjiang Hi-tech Park,Pudong,Shanghai
Contact:+86 180 6092 1829
Address:102-31, No. 1 Bldg, No. 1888, HongXiang West Road, XiangAn
Zhejiang Tianyu Pharmaceutical Co., Ltd.
Contact:+86-576-84177669, 89189665,89189688,84168770
Address:Jiangkou Development Zone, Huangyan, Taizhou City, Zhejiang
Jiangsu Taihu New Materials Holding Co., Ltd
Contact:+86-519-86160108
Address:Xueyan Town, Changzhou City, Jiangsu Province, 213169, China
Baoding City Light Industry And Textiles Imp.& Exp. Corp. Chemical Department.
Contact:86-312-3262436
Address:NO.658 CHAOYANG SOUTH STREET,BAODING CITY HEBEI CHINA
Doi:10.1016/S0040-4039(02)02103-2
(2002)Doi:10.1016/j.bmcl.2008.11.116
(2009)Doi:10.1016/j.cplett.2015.04.028
(2015)Doi:10.1021/ic025573m
(2002)Doi:10.1039/j39670000302
(1967)Doi:10.1016/j.bmcl.2010.04.094
(2010)
