Flash vacuum pyrolysis of α-acyl-o-methoxybenzylidenetriphenylphosphoranes to give 2-substituted benzofurans
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The title stabilised ylides, readily prepared in one step from acid chlorides, are converted upon FVP at 850 °C into 2-substituted benzofurans. When the acyl group is aromatic it appears unchanged as the 2- substituent in the product while for aliphatic examples degradation processes may lead to 2-alkenyl products.
Aitken, R.A. (2000). Flash Vacuum Pyrolysis of α-Acyl-o-methoxybenzylidenetriphenylphosphoranes to give 2-Substituted Benzofurans. ARKIVOC 1: 798-805
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