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US 8,273,914 B1Granted
Process for preparing vinyl chloroformate
AssigneeBausch & Lomb Incorporated
InventorsIvan M. Nunez, David E. Seelye
Life of this patent
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Abstract
Disclosed is a process for making vinyl chloroformate which includes reacting (a) a carbonyl compound of formula I: wherein R is a halogen or an alkyl group of 1 to about 25 carbon atoms; with (b) a silyl-containing enol ether and in the presence of an effective amount of a Group VIII-containing catalyst.
Claims23
A process for making vinyl chloroformate, the process comprising reacting (a) a carbonyl compound of formula I:
- wherein R is a halogen or an alkyl group of 1 to about 26 carbon atoms;
- with (b) a silyl-containing enol ether of formula II and in the presence of an effective amount of a Group VIII metal-containing catalyst
- wherein R1, R2 and R3 are independently a hydrocarbyl group of 1 to about 30 carbon atoms and R4, R5 and R6 are independently hydrogen or a C1 to C6 alkyl group.
A process for making vinyl chloroformate, the process comprising reacting (a) a carbonyl compound of the formula:
- with (b) a silyl-containing enol ether of the formula:
- wherein R1, R2 and R3 are independently a substituted or unsubstituted, straight or branched C1 to C9 alkyl group and in the presence of a palladium-containing catalyst or a platinum-containing catalyst.
Dependencies are inferred from the claim text.