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US 5,296,611 AGranted
Propenals substituted with a dithiane ring and processes for the preparation of these propenals
AssigneeL'oreal
InventorsGuy Solladie, Valerie Berl, Jean Maignan
Life of this patent
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Abstract
Propenals of formula: ##STR1## in which formula R is H or a C.sub.1 -C.sub.4 thioalkyl radical, the dithiane ring being at the cis position in relation to the aldehyde function when R is H and at the trans position when R is a thioalkyl radical. The invention also relates to two processes for the preparation of these propenals.
Claims4
Propenals of formula:
- ##STR39## in which formula R is hydrogen or a C.sub.1 -C.sub.4 thioalkyl radical, the dithiane ring being at the cis position with respect to the aldehyde function when R is H, and at the trans position when R is a thioalkyl radical.
Dependencies are inferred from the claim text.