| 主权项 |
1. A method for preparing a monomer having the general formula (1), comprising the steps of reacting a compound having the general formula (9) with a base or a metal selected from Group 1A, 2A and 2B metals to form a metal enolate reagent, and reacting the metal enolate reagent with an acyloxyketone compound having the general formula (8): wherein R1 is hydrogen, methyl or trifluoromethyl,
R2 is hydrogen or a straight, branched or cyclic C1-C10 monovalent hydrocarbon group which may contain a heteroatom,R3 and R4 are each independently hydrogen or a straight, branched or cyclic C1-C10 monovalent hydrocarbon group which may contain a heteroatom, R3 and R4 may bond together to form a ring with the carbon atom to which they are attached,R5 and R6 are each independently hydrogen or a straight, branched or cyclic C1-C10 monovalent hydrocarbon group which may contain a heteroatom, R5 and R6 may bond together to form a ring with the carbon atom to which they are attached,R7 and R8 are each independently hydrogen or a straight, branched or cyclic C1-C10 monovalent hydrocarbon group which may contain a heteroatom, R7 and R8 may bond together to form a ring with the carbon atom to which they are attached,X1 is a C1-C10 alkylene group which may have an ether, ester, lactone ring or hydroxyl, or a C6-C10 arylene group,m is 0 or 1, in case of m=0, R2 may bond with R5 or R6 to form a ring with the carbon atoms to which they are attached, in case of m=1, R2 may bond with R7 or R8 to form a ring with the carbon atoms to which they are attached,k1 is 0 or 1,Xc is hydrogen or halogen, andRa is a straight or branched C1-C10 monovalent hydrocarbon group. |
