| 摘要 |
There is disclosed a thermosensitive recording material comprising an ordinarily colorless or slightly colored dye precursor, an electron receptive compound (developer) coloring said dye precursor by reacting when heated, and a compound of following general formula (I) <CHEM> wherein R1 and R2 each represents hydrogen atom, alkyl, alkenyl or aryl group, and R1 and R2 may be different from each other; may also be linked together to form cycloalkyl, cycloether, and the like; and R3 and R4 each represents hydrogen atom, alkyl, alkenyl, alkoxy or aryl group and halogen atom, and R3 and R4 may be different from each other.
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