STERIC SUBSTITUENT CONSTANT OMEGA(S) BASED ON MOLECULAR MECHANICS CALCULATIONS .2. DIRECTIONALLY WEIGHTED STERIC CONSTANTS AND THEIR APPLICATION TO THE ANALYSIS OF THE STERIC COURSE OF REACTIONS

Citation
I. Akai et al., STERIC SUBSTITUENT CONSTANT OMEGA(S) BASED ON MOLECULAR MECHANICS CALCULATIONS .2. DIRECTIONALLY WEIGHTED STERIC CONSTANTS AND THEIR APPLICATION TO THE ANALYSIS OF THE STERIC COURSE OF REACTIONS, Journal of physical organic chemistry, 8(12), 1995, pp. 791-798
Citations number
42
Categorie Soggetti
Chemistry Physical","Chemistry Inorganic & Nuclear
ISSN journal
08943230
Volume
8
Issue
12
Year of publication
1995
Pages
791 - 798
Database
ISI
SICI code
0894-3230(1995)8:12<791:SSCOBO>2.0.ZU;2-A
Abstract
The directionally weighted steric substituent constant Omega(jk) was i ntroduced to evaluate the anisotropic steric hindrance effect to the r eaction centre. The correlation of the rates with a series of directio nally weighted Omega(jk) is useful for characterizing the feature of s teric effect. The difference between the hydrolyses of carboxylic este rs and carboxamides was shown by this method.