| US 7,507,849 B2 | ||
| Cyclic silazanes containing an oxamido ester group and methods of making these compounds | ||
| Charles M. Leir, Falcon Heights, Minn. (US); Karl E. Benson, St. Paul, Minn. (US); and Richard G. Hansen, Mahtomedi, Minn. (US) | ||
| Assigned to 3M Innovative Properties Company, St. Paul, Minn. (US) | ||
| Filed on Jun. 22, 2007, as Appl. No. 11/821,571. | ||
| Prior Publication US 2008/0319154 A1, Dec. 25, 2008 | ||
| Int. Cl. C07F 7/00 (2006.01) | ||
| U.S. Cl. 556—407 [556/411; 556/410] | 18 Claims |
1. A compound of Formula I:
 each R1 is independently an alkyl, haloalkyl, aralkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo;
R2 is an alkyl, haloalkyl, aryl, or aryl substituted with an alkyl, alkoxy, halo, or alkoxycarbonyl; and
each R3, R4, and R5 is independently hydrogen or an alkyl, haloalkyl, aralkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo.
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