- Annelation of aromatic oxo compounds
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The silyl enol ether of α-diazoacetoacetate is used for the annelation of aromatic oxo compounds. The method involves condensation with the oxo compound in the presence of TiCl4 followed by rhodium octanoate-catalyzed ring closure to afford fur
- Karady, Sandor,Amato, Joseph S.,Reamer, Robert A.,Weinstock, Leonard M.
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p. 8277 - 8280
(2007/10/03)
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- α-Naphthol Synthesis via Knoevenagel Condensation in the Presence of Molecular Sieves
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Diphenylethanal condenses with diethyl malonate, ethyl acetoacetate, and ethyl benzoylacetate under Knoevenagel conditions in the presence of molecular sieves to give the 1-naphthols (2), (5), and (6).Glass wool is a less effective catalyst for formation of (2). 3,3-Diethoxycarbonyl-1,1-diphenylpropene (4) is converted into the naphthol (2) in high yield by heating with molecular sieves but its saturated analogue (3) is unaffected.
- Taylor, Giles A.
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p. 3132 - 3134
(2007/10/02)
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