59748-13-9Relevant articles and documents
Optically active compound and photosensitive resin composition
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, (2008/06/13)
A photoactive compound is used in combination with a photosensitizer, represented by the following formula (1): A?[(J)m?(X-Pro)]n ??(1) wherein A represents a hydrophobic unit comprising at least one kind of hydrophobic groups selected from a hydrocarbon group and a heterocyclic group, J represents a connecting group, X-Pro represents a hydrophilic group protected by a protective group Pro which is removable by light exposure, m represents 0 or 1, and n represents an integer of not less than 1. The protective group Pro may be removable by light exposure in association with the photosensitizer (especially, a photo acid generator), or may be a hydrophobic protective group. The hydrophilic group may be a hydroxyl group or a carboxyl group. The photoactive compound has high sensitivity to a light source of short wavelength beams, for resist application, therefore, the photoactive compound is advantageously used for forming a pattern with high resolution.
A Method for Preparing 4'-Hydroxybiphenyl-4-carboxylic Acid
Brilev, V. V.,Vasilevskii, D. A.,Tarasevich, V. A.,Matveenko, Yu. V.,Erdman, A. A.
, p. 122 - 125 (2007/10/03)
4'-Hydroxybiphenyl-4-carboxylic acid was prepared by liquid-phase oxidation of 4'-alkoxy- and 4'-acetoxy-4-methylbiphenyl in acetic acid containing acetic anhydride in the presence of the ternary Co-Mn-ZrO catalyst promoted with NaBr.
Biphenyl esters and liquid crystalline mixtures comprising them
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, (2008/06/13)
Biphenyl esters of the formula STR1 wherein X is --CO--O-- or --O--CO-- and R1 and R2 each are alkyl or alkoxy of 1 - 8 carbon atoms, enlarge significantly the temperature range of the nematic phase of liquid-crystalline compositions without adversely affecting other properties.