46947-87-9Relevant articles and documents
Salicylic acid derivatives
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, (2008/06/13)
The heat-sensitive recording material disclosed comprises a colorless or pale colored dyestuff precursor, one or more salicylic acid derivative of the formula (1) or metal salt of the derivative and an aliphatic amide compound having 18?60 carbon atoms in molecular structure, and is excellent in thermal response and preservation stability of white portions and images. STR1 wherein X1 and X2 are a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aralkyl group or an aryl group, Y1 and Y2 are an oxygen atom or a sulfur atom, R1 is a hydrogen atom, an alkyl group, an aralkyl group or an aryl group, and R2 is an alkyl group, an alkenyl group, an aralkyl group or an aryl group.
Process for the preparation of bisphenols
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, (2008/06/13)
Processes for the preparation of bisphenols from phenols and substituted vicinal glycols, or unsaturated alcohols or substituted dienes resulting in bisphenols represented by the general formula: STR1 wherein: R1 and R2 are independently selected from monovalent hydrocarbon and monovalent hydrocarbonoxy radicals of one to four carbon atoms, or from halogen radicals; R3, R4 and R5 is each a lower alkyl radical, preferably of one to four carbon atoms, aryl radicals, alkaryl radicals, aralkyl radicals, and cycloalkyl radicals, and is the same or different; R5 may also be hydrogen. n and n1 are independently selected from whole numbers having a value of from 0 to 4 inclusive.