An ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-O-isopropyl­idene-α-d-galactopyran­oside

The title compound, C(12)H(19)IO(5), is the ortho­rhom­bic polymorph of a previously reported monoclinic form [Krajewski et al. (1987 ▶). Bull. Pol. Acad. Sci. Chem. 35, 91–102]. The dihedral angles between the six-membered ring and the two five-membered rings are 67.66 (14) and 71.79 (13)°, whereas...

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Autores principales: Fun, Hoong-Kun, Liew, Wei-Ching, Rai, Sankappa, Shetty, Prakash, Isloor, Arun M.
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2009
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2977305/
https://www.ncbi.nlm.nih.gov/pubmed/21583671
http://dx.doi.org/10.1107/S1600536809029031
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author Fun, Hoong-Kun
Liew, Wei-Ching
Rai, Sankappa
Shetty, Prakash
Isloor, Arun M.
author_facet Fun, Hoong-Kun
Liew, Wei-Ching
Rai, Sankappa
Shetty, Prakash
Isloor, Arun M.
author_sort Fun, Hoong-Kun
collection PubMed
description The title compound, C(12)H(19)IO(5), is the ortho­rhom­bic polymorph of a previously reported monoclinic form [Krajewski et al. (1987 ▶). Bull. Pol. Acad. Sci. Chem. 35, 91–102]. The dihedral angles between the six-membered ring and the two five-membered rings are 67.66 (14) and 71.79 (13)°, whereas the dihedral angle between the five-membered rings is 74.41 (12)°, indicating that all three rings are twisted from each other. The six-membered ring has a twist-boat conformation while both of the five-membered rings have envelope conformations. The crystal structure is stabilized by a network of C—H⋯O contacts linking the mol­ecules into a two-dimensional array parallel to the ab plane.
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spelling pubmed-29773052010-12-30 An ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-O-isopropyl­idene-α-d-galactopyran­oside Fun, Hoong-Kun Liew, Wei-Ching Rai, Sankappa Shetty, Prakash Isloor, Arun M. Acta Crystallogr Sect E Struct Rep Online Organic Papers The title compound, C(12)H(19)IO(5), is the ortho­rhom­bic polymorph of a previously reported monoclinic form [Krajewski et al. (1987 ▶). Bull. Pol. Acad. Sci. Chem. 35, 91–102]. The dihedral angles between the six-membered ring and the two five-membered rings are 67.66 (14) and 71.79 (13)°, whereas the dihedral angle between the five-membered rings is 74.41 (12)°, indicating that all three rings are twisted from each other. The six-membered ring has a twist-boat conformation while both of the five-membered rings have envelope conformations. The crystal structure is stabilized by a network of C—H⋯O contacts linking the mol­ecules into a two-dimensional array parallel to the ab plane. International Union of Crystallography 2009-07-25 /pmc/articles/PMC2977305/ /pubmed/21583671 http://dx.doi.org/10.1107/S1600536809029031 Text en © Fun 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
Fun, Hoong-Kun
Liew, Wei-Ching
Rai, Sankappa
Shetty, Prakash
Isloor, Arun M.
An ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-O-isopropyl­idene-α-d-galactopyran­oside
title An ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-O-isopropyl­idene-α-d-galactopyran­oside
title_full An ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-O-isopropyl­idene-α-d-galactopyran­oside
title_fullStr An ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-O-isopropyl­idene-α-d-galactopyran­oside
title_full_unstemmed An ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-O-isopropyl­idene-α-d-galactopyran­oside
title_short An ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-O-isopropyl­idene-α-d-galactopyran­oside
title_sort ortho­rhom­bic polymorph of 6-de­oxy-6-iodo-1,2:3,4-di-o-isopropyl­idene-α-d-galactopyran­oside
topic Organic Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2977305/
https://www.ncbi.nlm.nih.gov/pubmed/21583671
http://dx.doi.org/10.1107/S1600536809029031
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