Ketene O,O-acetals and their preparation
AssigneeBASF SE
InventorsAlfred Ruland, Wolfgang Reuther
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Abstract
Useful novel ketene O,O-acetals of the formula I ##STR1## where R.sup.1 is a tertiary alkyl radical of 4 to 6 carbon atoms or unsubstituted or halogen-substituted phenyl, R.sup.2 is hydrogen and R.sup.3 and R.sup.4 independently of one another are each phenyl which is unsubstituted or substituted by halogen, alkoxy, alkyl, phenyl, phenoxy, cyano, nitro or trifluoromethyl, their preparation and their use for the preparation of ketene O,N-acetals.
Claims3
A ketene O,O-acetal of the formula I ##STR21## where R.sup.1 is a tertiary alkyl radical of 4 to 6 carbon atoms or halogen-substituted phenyl, R.sup.2 is hydrogen and R.sup.3 and R.sup.4 independently of one another are each phenyl which is unsubstituted or substituted by halogen, alkoxy, alkyl, phenyl, phenoxy, cyano, nitro or trifluoromethyl.
Dependencies are inferred from the claim text.