4-(N-ARYLCARBAMOYLALKYLTHIO)PHENOLIC COMPOUND AND HEAT-SENSITIVE RECORDING MATERIAL PRODUCED BY USING THE SAME

摘要

PURPOSE:To provide new 4-(N-acrylcarbamoylalkylthio)phenolic compound useful as a color-developing agent suitable for heat-sensitive recording material for high-density and high-speed recording use having high sensitivity and high performance. CONSTITUTION:A compound of formula I (R is 1-17C alkylene; R<1> is H, lower alkyl or phenyl; Q is H, Cl, lower alkyl or lower alkyloxy), e.g. 4-[N-(3- methylphenyl)carbamoylmethylthio]phenol. The compound can be produced by reacting 4-mercaptophenol of formula II with an N-arylcarbamoylalkyl halogenide of formula III (X is Br or Cl) in the presence of an OH-generating agent (e.g. NaOH) in a solvent (e.g. ether). The compound of formula I is used as an electron-accepting compound and reacted by contacting with a colorless or faintly colored electron-donative dye precursor under heating to obtain a heat-sensitive recording layer.