Syntheses and crystal structures of 2,2,5-trimethyl-1,3-dioxane-5-carboxylic acid and 2,2,5-trimethyl-1,3-dioxane-5-carboxylic anhydride
2020 ◽
Vol 76
(1)
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pp. 86-90
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In 2,2,5-trimethyl-1,3-dioxane-5-carboxylic acid, C8H14O4, the carboxyl group occupies an equatorial position on the 1,3-dioxane ring. In the crystal, O—H...O hydrogen bonds form chains of molecules, which are linked into a three-dimensional network by C—H...O hydrogen bonds. The asymmetric unit of 2,2,5-trimethyl-1,3-dioxane-5-carboxylic anhydride, C16H26O7, consists of two independent molecules, which are linked by C—H...O hydrogen bonds. In the crystal, these units are connected into corrugated layers two molecules thick and parallel to the ab plane by additional C—H...O hydrogen bonds.
2014 ◽
Vol 70
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pp. o279-o280
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2012 ◽
Vol 68
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pp. o2438-o2439
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2020 ◽
Vol 76
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pp. 18-24
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2015 ◽
Vol 71
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pp. o43-o44
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2017 ◽
Vol 73
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pp. 1312-1315
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2014 ◽
Vol 70
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pp. o818-o818
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2014 ◽
Vol 70
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pp. o838-o838
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2014 ◽
Vol 70
(9)
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pp. o993-o994
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2019 ◽
Vol 75
(7)
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pp. 987-990
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