Crystal structure and absolute configuration of (4S,5R,6S)-4,5,6-trihy#173;droxy-3-methyl#173;cyclo#173;hex-2-enone (gabosine H)

Tibhe G.D.; Mac#237; as M.A.Pandolfi E.Schapiro V.Suescun L.

首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure and absolute configuration of (4S,5R,6S)-4,5,6-trihy#173;droxy-3-methyl#173;cyclo#173;hex-2-enone (gabosine H)

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Crystal structure and absolute configuration of (4S,5R,6S)-4,5,6-trihy#173;droxy-3-methyl#173;cyclo#173;hex-2-enone (gabosine H)

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The mol#173;ecule of the title keto carbasugar, C7H10O4, is formed by a cyclo#173;hexene skeleton with an envelope conformation, substituted by carbonyl, methyl and hydroxyl groups. The crystal structure is controlled mainly by a combination of strong O#8212;H#8943;O and weak C#8212;H#8943;O hydrogen bonds, forming nearly perpendicular chains running parallel to the 110 and -110 directions. This perpendicularity is caused by a tetra#173;gonal pseudosymmetry influenced by the similarity between the a and b axes, the value of 90.9770#8197;(10)#176; of the #946; angle and the action of a 21 screw axis, which transform each chain into its corresponding nearly orthogonal one.

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《Acta Crystallographica Section E: Crystallographic Communications》 |2017年第4期|606-609|共4页
作者
Tibhe G.D.; Mac#237; as M.A.Pandolfi E.Schapiro V.Suescun L.;
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Departamento de Quí

mica Orgá

nica, Facultad de Química, Universidad de la República, Montevideo 11800, UruguayDepartment of Chemistry, Universidad de los Andes, Cra 1 N°

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CRYSTAL STRUCTURE; ABSOLUTE CONFIGURATION; MITSUNOBU INVERSION REACTION; NATURAL PRODUCT;

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Crystal structure and absolute configuration of (4S,5R,6S)-4,5,6-trihy#173;droxy-3-methyl#173;cyclo#173;hex-2-enone (gabosine H)

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