Structure of macrocyclic ansa-ketolactones including a thiophene ring |
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| Authors: | Tashkhodzhaev B. Vorontsova L. G. Alashev F. D. |
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| Affiliation: | 1.N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow
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| Abstract: | | 1. | The conformation and geometric parameters of isomeric macrocyclic ketolactones including a thiophene ring have been determined: 5-oxa-[10]- -cyclothienedione-1,4 (I) and 6-oxa-[10]--cyclothienedione-1,5(II). | | 2. | The position of the lactone group in the ansa-compound (II) leads to a less stressed macrocycle, in comparison with (I). |
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