7,7-Dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2H-chromen-4-yl benzoate

An intra­molecular Claisen-like cyclization of ethyl 2-acet­oxy-4,4-dimethyl-1-(3-methyl­but-2-en­yl)cyclo­hex-2-enecarboxylate followed by dialkyl­ation yielded the bicyclic title compound, C(23)H(26)O(4). In both of the fused six-membered rings exist fragments of four atoms which are planar, where...

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Detalles Bibliográficos
Autores principales: Möws, Katrin, Schürmann, Markus, Preut, Hans, Plietker, Bernd
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2009
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2970087/
https://www.ncbi.nlm.nih.gov/pubmed/21577549
http://dx.doi.org/10.1107/S1600536809030918
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author Möws, Katrin
Schürmann, Markus
Preut, Hans
Plietker, Bernd
author_facet Möws, Katrin
Schürmann, Markus
Preut, Hans
Plietker, Bernd
author_sort Möws, Katrin
collection PubMed
description An intra­molecular Claisen-like cyclization of ethyl 2-acet­oxy-4,4-dimethyl-1-(3-methyl­but-2-en­yl)cyclo­hex-2-enecarboxylate followed by dialkyl­ation yielded the bicyclic title compound, C(23)H(26)O(4). In both of the fused six-membered rings exist fragments of four atoms which are planar, whereas the remaining two atoms deviate by up to 0.682 (3) Å on one side of the plane of the ring containing an O atom and by up to 0.415 (3) Å on opposite sides of the other ring. The dihedral anglebetween the planar fragments of the six-membered rings is 41.76 (10)°
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spelling pubmed-29700872010-12-30 7,7-Dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2H-chromen-4-yl benzoate Möws, Katrin Schürmann, Markus Preut, Hans Plietker, Bernd Acta Crystallogr Sect E Struct Rep Online Organic Papers An intra­molecular Claisen-like cyclization of ethyl 2-acet­oxy-4,4-dimethyl-1-(3-methyl­but-2-en­yl)cyclo­hex-2-enecarboxylate followed by dialkyl­ation yielded the bicyclic title compound, C(23)H(26)O(4). In both of the fused six-membered rings exist fragments of four atoms which are planar, whereas the remaining two atoms deviate by up to 0.682 (3) Å on one side of the plane of the ring containing an O atom and by up to 0.415 (3) Å on opposite sides of the other ring. The dihedral anglebetween the planar fragments of the six-membered rings is 41.76 (10)° International Union of Crystallography 2009-08-12 /pmc/articles/PMC2970087/ /pubmed/21577549 http://dx.doi.org/10.1107/S1600536809030918 Text en © Möws et al. 2009 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
spellingShingle Organic Papers
Möws, Katrin
Schürmann, Markus
Preut, Hans
Plietker, Bernd
7,7-Dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2H-chromen-4-yl benzoate
title 7,7-Dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2H-chromen-4-yl benzoate
title_full 7,7-Dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2H-chromen-4-yl benzoate
title_fullStr 7,7-Dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2H-chromen-4-yl benzoate
title_full_unstemmed 7,7-Dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2H-chromen-4-yl benzoate
title_short 7,7-Dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2H-chromen-4-yl benzoate
title_sort 7,7-dimethyl-4a-(3-methyl-2-buten­yl)-2-oxo-4a,5,6,7-tetra­hydro-2h-chromen-4-yl benzoate
topic Organic Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2970087/
https://www.ncbi.nlm.nih.gov/pubmed/21577549
http://dx.doi.org/10.1107/S1600536809030918
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