Intramolecular 1,5-Hydride Transfer in Rearrangements of Ammonium Salts Containing Alkoxycarbonylmethyl and 4-Penten-2-ynyl Groups |
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| Authors: | Kocharyan S T Razina T L Gyul'nazaryan A Kh Babayan A T |
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| Institution: | (1) Institute of Organic Chemistry, Academy of Sciences of Armenia, Erevan, Armenia |
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| Abstract: | The Stevens 3,2 rearrangement of dialkylammonium salts containing, along with 4-penten-2-ynyl, an alkoxycarbonylmethyl group, gives mostly hydrogenated products, with simultaneous dealkylation and aldehyde formation. On acid treatment enamine amino esters give keto esters or their further transformation product, 4-ethyl3-hydroxy-5-methyltetrahydrofuran-2-one. |
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