US 10,889,536 B1
Enol ethers
Matthew Allen Boone, Kingsport, TN (US); and Stephanie Kay Clendennen, Kingsport, TN (US)
Assigned to Eastman Chemical Company, Kingsport, TN (US)
Filed by Eastman Chemical Company, Kingsport, TN (US)
Filed on Sep. 4, 2019, as Appl. No. 16/560,161.
Int. Cl. C07C 43/00 (2006.01); C07C 43/16 (2006.01); C07C 43/162 (2006.01); C07C 69/533 (2006.01); C07C 69/76 (2006.01); C07C 43/178 (2006.01)
CPC C07C 43/16 (2013.01) [C07C 43/162 (2013.01); C07C 43/1785 (2013.01); C07C 69/533 (2013.01); C07C 69/76 (2013.01)] 22 Claims
 
1. A compound according to Formula I:

OG Complex Work Unit Drawing
wherein:
A is
(a)

OG Complex Work Unit Drawing
 wherein ** indicates the point of attachment, or
(b)(C3-8)cycloalkyl;
R1a is

OG Complex Work Unit Drawing
R2 is ethyl, propyl, butyl, or pentyl;
R3 is methyl, ethyl, or propyl;
R4 is hydrogen, (C1-12)alkyl, (C2-12)alkenyl, or —C(O)R5;
R5 is (C1-12)alkyl unsubstituted or substituted by 1-2 R6, (C2-12)alkenyl unsubstituted or substituted by R6, (C3-8)cycloalkyl, or 5- to 9-membered aryl;
each R6 is (C1-4)alkoxy, or oxo; and
n is an integer from 1 to 15.