𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Influence of Aprotic Solvents on the Transmission of Anomalous Substituent Effects on13C NMR Chemical Shifts at the Carboxyl Carbon (δco) inMeta-Substituted Benzoic Acids: A Strong Evidence for π-Polarization Mechanism

✍ Scribed by Susanta K. Sen Gupta; Ruchi Shrivastava

Book ID
113051900
Publisher
Springer Vienna
Year
2011
Tongue
English
Weight
347 KB
Volume
42
Category
Article
ISSN
0937-9347

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Solvent sensitivity of ortho substituent
Solvent sensitivity of ortho substituent effect on 13C NMR chemical shift of the carboxyl carbon (δco) in benzoic acid
✍ Susanta K. Sen Gupta; Ruchi Shrivastava 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 190 KB 👁 1 views

A reverse __ortho__ effect is observed for the ^13^ C NMR chemical shifts of the carboxyl carbon (__δ__~co~) in benzoic acids measured in aprotic solvents of varying polarity. The __ortho__ effect on __δ__~co~ is best described by a combination of the reverse field and steric accelerating effects of

Chemometric analysis of disubstituent ef
Chemometric analysis of disubstituent effects on the 13C chemical shifts of the carboxyl carbons (δCO) of benzoic acids. A comparative study of the substituent effects on the strength of benzoic acids in apolar aprotic media
✍ Susanta K. Sen Gupta; Ruchi Shrivastava 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 109 KB 👁 1 views

## Abstract The results of measurements of substituent induced chemical shifts of carboxyl carbons (δ~CO~) of dichloro‐ and difluorobenzoic acids, including the monosubstituted ones with substituents at __meta‐__ and/or __ortho‐__ positions, in chloroform‐d and strengths of these acids (log K) in c