Patent ID: 8604223

Claim:
A method of preparing a compound of formula (3) wherein R 1 , R 2 , and R 3 are independently hydrogen, a linear alkyl group, a branched alkyl group, a cyclic alkyl group, a linear alkenyl group, a branched alkenyl group, a cyclic alkenyl group, an aryl group, or alkaryl group, each of which groups optionally comprises one or more heteroatoms independently chosen from oxygen, nitrogen, halogen atoms, sulfur, silicon, and phosphorus; R 4 is a linear alkyl group, a branched alkyl group, a cyclic alkyl group, a linear alkenyl group, a branched alkenyl group, a cyclic alkenyl group, an aryl group, or alkaryl group, each of which groups optionally comprises one or more heteroatoms independently chosen from oxygen, nitrogen, halogen atoms, sulfur, silicon, and phosphorus; a is 0 or an integer from 1 to 12; b is 0 or an integer; and R 5 is a residue of a polymeric polyol, a hydroxyl functionalized surface, a silane, a siloxane, a silanol, or a hydrocarbon group having the formula: wherein c is 0 or 1 and R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 are independently hydrogen, a linear alkyl group, a branched alkyl group, a cyclic alkyl group, a linear alkenyl group, a branched alkenyl group, a cyclic alkenyl group, an aryl group, or an alkaryl group, each of which groups optionally comprises one or more heteroatoms; the method comprising: a) providing a reaction mixture comprising i. a compound of formula (2) wherein R 1 , R 2 , R 3 , R 4 , and a are as defined above, ii. a compound of formula (4) wherein R 5 and b are as defined above, and iii. 1×10 −6 to 1×10 −3 molar equivalents, based on moles of compound (4), of an acid catalyst; and b) reacting compounds (2) and (4); wherein less than 5% of compound (2) undergoes an esterification or transesterification reaction, as measured by GC-MS.