2167-23-9Relevant articles and documents
Lithographic printing method
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, (2008/06/13)
A lithographic printing plate precursor comprising a support and an image-recording layer containing at least one infrared absorbing agent of a cyanine dye in which a HOMO energy level of each of substituents present on both terminal nitrogen atoms is -10.0 eV or higher. An infrared absorbing agent of a cyanide dye represented by formula (V) shown below: wherein Z 1 and Z 2 each independently represents an aromatic ring which may have a substituent or a hetero aromatic ring which may have a substituent; R 10 and R 20 each independently represents a phenyl group, a naphtyl group, an anthracenyl group, a carbazolyl group or a phenothiazinyl group each of which may have a substituent; A - represents an anion which exists in case of being necessary for neutralizing a charge and is selected from a halogen ion, a perchlorate ion, a tetrafluoroborate ion, a hexafluorophosphate ion and a sulfonate ion; and n represents 1 or 2.
EFFECT OF STERIC FACTORS ON THE EQUILIBRIUM IN THE FORMATION OF TERT-BUTYLPEROXY KETALS FROM ALIPHATIC KETONES
Antonovskii, V. L.,Fedorova, E. V.,Shtivel', N. E.,Emelin, Yu. D.
, p. 704 - 706 (2007/10/02)
The equilibrium in the formation of tert-butylperoxy ketals from aliphatic ketones and tert-butyl hydroperoxide is determined by the steric factors of the substituents at the carbonyl group of the ketones.The dependence of the equilibrium constant on the steric parameters of the substituents is described by the Taft equation log K/KO = δΣEs0 with δ = 1.37 (r = 0.970).