- Difunctional and Hetercyclic Prducts from the Ozonolysis of Conjugated C5-C8 Cyclodienes
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Ozonolyses of the conjugated C5-C8 cyclodienes 1a-d in methanol, followed by reduction with DMS, have been examined.Monoozonolyses gave the corresponding unsaturated dialdehydes 2e as the primary products.In subsequent reactions, the dialdehydes 2e derived from the monoozonolyses of 1a, 1b, and 1c gave in high yields the heterocyclic compounds 7, 8k, and 9k, respectively.Diozonolyses of 1a-d gave the corresponding dialdehydes 3e as the primary products.In subsequent reactions, the dialdehydes 3e derived from 1b and 1c gave the heterocyclic compounds 8l and 9l, respectively.In addition, aldehydes 2e and 3e undervent partial acetalization reactions with methanol.
- Griesbaum, Karl,Jung, In Chang,Mertens, Henri
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p. 6024 - 6027
(2007/10/02)
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- THIOUREA, A CONVENIENT REAGENT FOR THE REDUCTIVE CLEAVAGE OF OLEFIN OZONOLYSIS PRODUCTS
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A convenient procedure for the preparation of aldehydes, in good to excellent yields, from suitable olefins by ozonolysis in methanol, followed by exposure of the resulting products to thiourea, is described.
- Gupta, Deepa,Soman, Raghavan,Dev, Sukh
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p. 3013 - 3018
(2007/10/02)
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