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e Effect of Alkyl Groups on Carbanion Stability Part I. Interaction of Small Rings with Adjacent Carbanion Centers

 

作者: Nurettin Balcioǧlu,   Fatma Sevin,   Özden Evin,   N. Bekir Peynircioǧlu,  

 

期刊: Berichte der Bunsengesellschaft für physikalische Chemie  （WILEY Available online 1992）
卷期: Volume 96, issue 2  

页码: 139-142

 

ISSN:0005-9021

 

年代: 1992

 

DOI:10.1002/bbpc.19920960206

 

出版商: Wiley‐VCH Verlag GmbH&Co. KGaA

 

关键词: Carbanion Stability;Kinetic Acidity Measurement;MNDO Calculations;Quantum Mechanics;Small Ring Effects;Spectroscopy, Nuclear Magnetic Resonance

 

数据来源: WILEY

 

摘要:

AbstractRelative kinetic acidity measurements have shown that the cyclobutyl group has the ability to stabilize an adjacent carbanion center similar to vinyl and cyclopropyl groups, although to a lesser extent. The results of semiempirical calculations (MNDO) covering all the mentioned substituents, including the isopropyl group correlate well with the experimentally determined relative kinetic acidities.

 

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