BISPHENOL HAVING FLUORENE SKELETON, METHOD FOR PRODUCING SAME, POLYARYLATE RESIN, (METH)ACRYLATE COMPOUND AND EPOXY RESIN WHICH ARE DERIVED FROM THE BISPHENOL
Substitution of Hydroxybiaryls via Directed <i>o</i><i>rtho</i>-Lithiation of <i>N</i>-Silylated <i>O</i>-Aryl <i>N</i>-Isopropylcarbamates
作者:Matthias Kauch、Victor Snieckus、Dieter Hoppe
DOI:10.1021/jo0506938
日期:2005.9.1
Herein we report regioselective substitution reactions of a series of 2- and 3-hydroxybiaryls including BINOL via a new directed ortho-metalation procedure. O-Aryl N-isopropylcarbamates, conveniently prepared from phenols and isopropyl isocyanate, are temporarily and in situ N-protected by means of silyl triflates to form stable intermediates for low temperature lithiation reactions using butyllithium/TMEDA
This invention relates to Group 4 dialkyl compounds supported by a pyridyl-amido-aryl (“PAA”), an anisole-amido-aryl (“AAA”), a phenoxy-amido-pyridyl (“PAPY”), an anisole-amido-phenoxy (“AAP”) or a anisole-amido-phenoxy (“AAP”) tridentate ligand. Such compounds can polymerize olefins, such as ethylene.
NONAQUEOUS ELECTROLYTE SOLUTION, ELECTRICITY STORAGE DEVICE USING SAME, AND BIPHENYL GROUP-CONTAINING CARBONATE COMPOUND USED IN SAME
申请人:UBE INDUSTRIES LTD.
公开号:US20160126593A1
公开(公告)日:2016-05-05
Provided are (1) a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing a biphenyl group-containing carbonate compound represented by the following general formula (I), (2) an energy storage device using the same, and (3) a biphenyl group-containing carbonate compound used for the same. This nonaqueous electrolytic solution is capable of improving electrochemical characteristics in a broad temperature range, especially at high temperatures, and further reducing a rate of increase in electrode thickness after high-temperature cycles.
In the formula, R
1
represents an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkynyl group having 3 to 6 carbon atoms, or an aryl group having 6 to 20 carbon atoms; and each of X
1
to X
4
independently represents a hydrogen atom, a phenyl group, or a benzyl group.