A stable methyleneketene and the stepwise fragmentation of Meldrum's acids
- 1 January 1986
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 5,p. 369-370
- https://doi.org/10.1039/c39860000369
Abstract
Mild Flash vacuum pyrolysis of the Meldrum's acid derivative (3) gives the first example of a methylenemalonic anhydride (4), which decarboxylates in solution to give the first isolable methyleneketene (5); the structures are supported by 13C n.m.r. spectra and chemical reactions.Keywords
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