| 摘要 |
The invention provides a novel process for the preparation of glycidyl polyethers of polyphenols. The process comprises reacting at least one alkali metal salt of a polyphenol with at least one 2,3-epoxy-1-haloalkane in an anhydrous and essentially aprotic medium, in the presence of a compound of the formula N[CHR1-CHR2-O-(CHR3-CHR4-O)n-R5]3 wherein n is an integer of from 0 to 10 inclusive; R1, R2, R3 and R4, which can be the same or different, are each a hydrogen atom or an alkyl radical having 1 to 4 carbon atoms; R5 is a hydrogen atom, an alkyl radical having 1 to 12 carbon atoms, a cycloalkyl radical having 3 to 12 carbon atoms, a phenyl radical, a <IMAGE> radical or a <IMAGE> radical; and m is an integer from 1 to 12 inclusive. The process is especially useful in the preparation of glycicyl polyethers of bisphenol A. |
