Synthesis and three-dimensional structure of 5,5-disubstituted 2-alkoxy-1,3-dioxanes |
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Authors: | L F Lapuka O B Chalova E A Kantor T K Kiladze D L Rakhmankulov |
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Institution: | (1) Ufa Petroleum Institute, 450062 Ufa |
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Abstract: | It was established by PMR spectroscopy that a chair conformation with an axial orientation of the alkoxy substituent is the primary conformation for 5,5-disubstituted (and unsubstituted) 2-alkoxy-1,3-dioxanes. As compared with alkyl-1,3-dioxanes, 2-alkoxy-1,3-dioxanes are characterized by reversal of the chemical shifts of the axial and equatorial protons attached to C4, and C6.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1182–1185, September, 1981. |
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