Nuclear magnetic resonance and PCILO study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde

A meta effect on the methoxy-group conformation is studied from both an experimental and a theoretical point of view. Experimental NMR data show that, while in m-anisaldehyde (I) both side-chain groups undergo a restricted rotation, in 2,5-dimethoxybenzaldehyde (II) the methoxy group in ring positio...

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Publicado: 1983
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223654_v87_n14_p2603_Natiello
http://hdl.handle.net/20.500.12110/paper_00223654_v87_n14_p2603_Natiello
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00223654_v87_n14_p2603_Natiello
record_format dspace
spelling paper:paper_00223654_v87_n14_p2603_Natiello2023-06-08T14:50:11Z Nuclear magnetic resonance and PCILO study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde A meta effect on the methoxy-group conformation is studied from both an experimental and a theoretical point of view. Experimental NMR data show that, while in m-anisaldehyde (I) both side-chain groups undergo a restricted rotation, in 2,5-dimethoxybenzaldehyde (II) the methoxy group in ring position 5 is held fixed in a cis conformation with respect to the aldehyde group, which, in turn, presents a carbonyl cis conformation toward that methoxy group. PCILO calculations follow quite closely, in a qualitative sense, all observed trends. © 1983 American Chemical Society. 1983 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223654_v87_n14_p2603_Natiello http://hdl.handle.net/20.500.12110/paper_00223654_v87_n14_p2603_Natiello
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A meta effect on the methoxy-group conformation is studied from both an experimental and a theoretical point of view. Experimental NMR data show that, while in m-anisaldehyde (I) both side-chain groups undergo a restricted rotation, in 2,5-dimethoxybenzaldehyde (II) the methoxy group in ring position 5 is held fixed in a cis conformation with respect to the aldehyde group, which, in turn, presents a carbonyl cis conformation toward that methoxy group. PCILO calculations follow quite closely, in a qualitative sense, all observed trends. © 1983 American Chemical Society.
title Nuclear magnetic resonance and PCILO study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde
spellingShingle Nuclear magnetic resonance and PCILO study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde
title_short Nuclear magnetic resonance and PCILO study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde
title_full Nuclear magnetic resonance and PCILO study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde
title_fullStr Nuclear magnetic resonance and PCILO study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde
title_full_unstemmed Nuclear magnetic resonance and PCILO study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde
title_sort nuclear magnetic resonance and pcilo study of the side-chain conformations in m-anisaldehyde and 2,5-dimethoxybenzaldehyde
publishDate 1983
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223654_v87_n14_p2603_Natiello
http://hdl.handle.net/20.500.12110/paper_00223654_v87_n14_p2603_Natiello
_version_ 1768544854905716736

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