Abstract
Intermediates involved in the conversion of 3-alkyl-3,4-dihydro-2 H-1,3-benz[ e]oxazines into 2- N, N-dialkylaminomethylphenol derivatives, using morpholine and other high boiling secondary amines, have been identified and characterised. Additional experiments have established the involvement of o-quinone methide intermediates in the retro-Mannich reactions. Axially chiral resorcinarenes have been prepared by utilising the exchange reactions.
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