Patent ID: 8492538
Filing Date: 2013-07-23
Classification: B01D,B01J,C07B,C07C,C07D,C07J,C08B

Abstract:
1. A cyclodextrin derivative salt comprising: one or more anionic cyclodextrin derivatives; and one or more cations independently selected at each occurrence from a phosphonium cation or a quaternary nitrogen-containing cation, wherein the quaternary nitrogen-containing cation excludes tetraalkylammonium cation, and wherein each cation is independently substituted or unsubstituted upon each occurrence, provided that when the quaternary nitrogen-containing cation is quaternary ammonium cation, it is of the general formula (NR 1 R 2 R 3 R) + , wherein the radicals R 1 , R 2 , and R 3 are selected independently at each occurrence from the group consisting of: substituted linear or branched, saturated or unsaturated, aliphatic or alicyclic alkyl groups with 1 to 20 carbon atoms; heteroaryl groups, heteroaryl-C aryl, aryl-C the radical R is selected from the group consisting of: substituted linear or branched, saturated or unsaturated, aliphatic or alicyclic alkyl groups with 1 to 20 carbon atoms; heteroaryl-C aryl-C wherein any two of R, R