| 1. | Ring closure can be accomplished in the presence of thionyl chloride.
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| 2. | Baldwin's rules discuss the relative rates of ring closures of these various types.
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| 3. | In conjunction with the Erding Ring Closure, trains would continue via Dorfen to Salzburg.
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| 4. | Alkenes with the interacting groups substituted cis to each other also assists in ring closure.
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| 5. | Aryl systems with the interacting groups substituted ortho to each other assists in ring closure.
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| 6. | It is produced from 1, 5-dibenzoylnaphthalene by oxidative ( dehydrogenative ) ring closure.
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| 7. | This is for snooping, ring closures ( see below ), and hot-plugging.
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| 8. | In aliphatic 4-and 5-oxocarboxylic acids, intervening substituents assists in ring closure.
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| 9. | The conditions under which these cyclization reactions occur follow Baldwin's rules for ring closure.
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| 10. | The resulting dialkoxides can then undergo amine displacement and ring closure at 25�C to form tropocoronands 4.
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