| abstract |
NEW MATERIAL:An aromatic ether expressed by the formula (R1 and R2 are H, halogen, methyl or ethyl; R3 and R4 are H, halogen, alkyl, acyl, aralkyl, alkoxycarbonyl or alkoxy; R3 and R4 together may link to form a ring.) EXAMPLE:1-Phenoxy-2-chlorophenoxyethane. USE:A sensitizer for thermosensitive recording materials, thermally stable, having high solubility and effective for providing high sensitivity. PREPARATION:For example, the compound expressed by the formula is obtained by reacting a phenol or phenolate with an aryloxyalkyl halide or with an aryloxyalkylsulfonate or reacting an alkylene dihalide with a phenol, etc. |