摘要:
A process for preparing a diphenylalkene derivative of the formula [II] which comprises oxidizing a diphenylalkanoic acid derivative of the formula [I] wherein R₁ and R₂ are each substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aralkyl or substituted or unsubstituted aryl, R₁ and R₂ may form a heteroring together therewith or with an adjacent benzene ring, R₃, R₄, R₅, R₆, R₇, R₈, R₉, R₁₀ and R₁₁ are each hydrogen atom, halogen atom, substituted or unsubstituted alkyl, substituted or unsubstituted hydroxyl or substituted or unsubstituted amino, R₁₂ and R₁₃ are each hydrogen atom or substituted or unsubstituted alkyl, X is carboxyl, amide, ester or halide thereof.
摘要:
A heat-sensitive recording material comprising on a substrate a recording layer containing a colorless 'or pale-colored basic dye and an electron accepting reactant material, which is characterized in that the basic dye comprises at least one chromeno compound represented by the formula ( I ) wherein G and R 1 -R 4 are defined in the specification.
摘要:
A heat-sensitive recording material comprising on a substrate a recording layer containing a colorless 'or pale-colored basic dye and an electron accepting reactant material, which is characterized in that the basic dye comprises at least one chromeno compound represented by the formula ( I ) wherein G and R 1 -R 4 are defined in the specification.
摘要翻译:一种热敏记录材料,在基材上含有含有无色或浅色碱性染料和电子接受反应物料的记录层,其特征在于碱性染料含有至少一种由式(I)表示的色烯化合物, 其中G和R 1和R 3在本说明书中定义。 C
摘要:
A process for preparing a diphenylalkene derivative of the formula [II] which comprises oxidizing a diphenylalkanoic acid derivative of the formula [I] wherein R₁ and R₂ are each substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aralkyl or substituted or unsubstituted aryl, R₁ and R₂ may form a heteroring together therewith or with an adjacent benzene ring, R₃, R₄, R₅, R₆, R₇, R₈, R₉, R₁₀ and R₁₁ are each hydrogen atom, halogen atom, substituted or unsubstituted alkyl, substituted or unsubstituted hydroxyl or substituted or unsubstituted amino, R₁₂ and R₁₃ are each hydrogen atom or substituted or unsubstituted alkyl, X is carboxyl, amide, ester or halide thereof.
摘要翻译:制备式[II]的二苯基烯衍生物的方法,其包括将式[I]的二苯基链烷酸衍生物,其中R 1和R 2各自是取代或未取代的烷基,取代或未取代的链烯基, 未取代的炔基,取代或未取代的环烷基,取代或未取代的芳烷基或取代或未取代的芳基,R 1和R 2可以与其一起或与相邻的苯环R3,R4,R5,R6,R7,R8,R9,R10和 R 11各自为氢原子,卤素原子,取代或未取代的烷基,取代或未取代的羟基或取代或未取代的氨基,R 12和R 13各自为氢原子或取代或未取代的烷基,X为羧基,酰胺,酯或卤化物。