Back to results
US 7,442,814 B2Granted
1-methoxy-2-phenyl ethenes useful for the preparation of 5-carboxaldehyde-2-3-dihydrobenzoxepines
AssigneeMerck Patent GmbH
InventorsTwana Saleh, Bernard Boudet
Life of this patent
Estimating the term…
Abstract
The present invention relates to the compounds of general formula (I) wherein R, R1, R2 are as defined in claim 1. Compounds of formula (I) are particularly useful for preparing 3,3-dimethyl-5-formyl-2,3-dihydrobenzoxepines derivatives.
Claims26
A compound of general formula (I):
- wherein
- R is, in each case independently, (C1-C18)alkoxy;
- p represents 0, 1, 2, 3 or 4;
- R1 and R2 are each independently (C1-C18)alkyl or together form -(CH2)n-;
- and
- n represents 2, 3 or 4.
3 more elements
Dependencies are inferred from the claim text.