| 摘要 |
A process for preparing compounds of structure (I), in which R is C1-4alkyl, n is 1 to 20, and X is halogen, which comprises transesterification of a C1-4alkyl methacrylate, with a haloalkanol of structure HO(CH2)nX in which n and X are as described for structure (I), in the presence of a titanium tetraC1-4alkoxide or a dialkyltin oxide catalyst, and a stabiliser. |
