Convenient syntheses of 5-substituted 2- hydroxybenzoates and related reactions
- 1 January 1982
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 665-669
- https://doi.org/10.1039/p19820000665
Abstract
The enamine aidehydes RC(CHNMe2)CHO (R = Et or Ph) were condensed with the bis-enolate CH2 C(O–)CHC(O–)OEt to give the title aromatic compounds. Thus these products are available from the acetals R1CH2CH(OR2)2(R1= R2= Et; R1= Ph, R2= Me) in two steps. The Vilsmeier formylation of several derivatives of butanal was examined.Keywords
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