The acid hydrolytic cleavage of 1 to 2, assisted by a neighbouring benzamide group, was kinetically investigated in a wide range of HCl concentrations (1.67–8.7 M) and at various temperatures. Kinetic measurements were performed also in the presence of LiCl at constant ionic strength (I = 5 M). The rate determining step of the acid hydrolysis of 1 was recognized through the investigation of the acid catalyzed cyclization of 3 to 2. Thermodynamic activation parameters were calculated and the experimental data discussed. The participation of the neighbouring benzamide group was evaluated to be about 7.3 × 103.
Kochany Jan, Maguire R. James, J. Agr. and Food Chem., 42 (1994) N 2, S 406-412
作者:Kochany Jan, Maguire R. James
DOI:——
日期:——
SYNERGISTISCHE HERBIZIDE WIRKSTOFFKOMBINATIONEN
申请人:Bayer Aktiengesellschaft
公开号:EP1233672A2
公开(公告)日:2002-08-28
HERBIZIDE AUF BASIS VON SUBSTITUIERTEN ARYLKETONEN
申请人:Bayer CropScience AG
公开号:EP1372395A1
公开(公告)日:2004-01-02
METHOD OF INDUCING NEGATIVE CHEMOTAXIS
申请人:Goodhew Erica Brook
公开号:US20100093747A1
公开(公告)日:2010-04-15
The current invention is directed to methods of inducing the negative chemotaxis of a migratory cell comprising contacting the cell with a compound having the Formula (I), (II), (III) or (IV).