A Novel Synthesis of γ,δ‐Unsaturated Aldehydes from α‐Formyl‐γ‐lactones |
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| Authors: | Roger L Snowden Robert Brauchli Simon Linder |
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| Institution: | 1. Firmenich SA, Corporate R&D Division, CH‐1211 Geneva 8, (phone: +41‐22‐7803051;2. fax: +41‐22‐7803334) |
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| Abstract: | A preparatively useful one‐step transformation of γ,γ‐disubstituted α‐formyl‐γ‐lactones into trisubstituted γ,δ‐unsaturated aldehydes is described, by means of catalytic amounts of either AcOH or AcOEt in the vapor phase over a glass support. A mechanistic rationale is proposed. |
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| Keywords: | Dealkoxycarbonylation γ δ ‐Enal Lactones Pyrolysis Fragrance Aldehydes |
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