Patent ID: 9040684
Filing Date: 2015-05-26
Classification: A61K,C08B,C08L,C09D

Abstract:
1. A method for converting a primary alcohol to a formyl carboxylate, or mixture thereof, comprising: adding a 4-substituted piperidine nitroxyl derivative, a primary oxidant, and a terminal oxidant to a homogeneous solution to form a reaction mixture, wherein the homogeneous solution has a pH of less than about 4 and comprises a cellulose interpolymer comprising a primary alcohol functional group; passing of a reaction period sufficient to affect conversion of the primary alcohol functional group to a formyl group or a carboxy group and thus produce an oxidized cellulose interpolymer, wherein the oxidized, cellulose interpolymer consists of anhydroglucose units; as the non-terminal monomer units of the oxidized cellulose interpolymer, wherein R 1 , R 2 , R 3 , R 4 , and R 5 are independently selected from the group consisting of hydrogen and C 2 -C 12 acyl groups, and X is formyl or carboxy.