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Aldehydes, tert. Amines or Acetales from Amidacetales and Grignard-Compounds
Walther, H.,Haase, L.,Gross, H.,Costisella, B.,Keitel, I.
, p. 902 - 908 (2007/10/02)
Amidacetales 1 or -mercaptales 9 respectively react with Grignard-agents dependent on molar ratio by exchange of methoxy- or methylthio group via not isolable O,N- or S,N-acetales to the corresponding aldehydes 4 or the tert. amines 3.Starting from bicyclic amidacetales 6 aldehydes or bis-β-hydroxyethylamines 8 are formed.By quarternisation of the amidacetal-nitrogen followed by reaction with Grignard-agents the corresponding O,O-acetales are formed.
