| 摘要 |
The present invention relates to a method of cleaving arylethers such as arylethers represented by formula (I), wherein R is hydrogen, C1-C6 alkyl, cycloalkyl, phenyl, substituted phenyl or CH=CH2; each A is independently NO2, hydroxy, halo, or methoxy; n is an integer from 0 to 5; and x is 1 or 2, comprising contacting the arylether with an amide hydrohalide salt under conditions sufficient to cleave the ether group(s) of the arylether and form a phenol or substituted phenol. The present invention also relates to a method of preparing 4,6-diaminoresorcinol, which is a monomer used for making polybenzoxazoles (PBO).
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