functionalization resulted unexpectedly in the formation of allylsilanes rather than in the expected conjugated adducts, affording a new straightforward methodology to access useful stereodefined trisubstituted allylsilanes via CH bond activation. Preliminary results have shown that they were reactive in the allylation of aldehydes, providing an access to alcohols bearing a quaternary carbon center.
Photoredox Michael addition of phenylmalononitrile onto α,β-unsaturated carboxylic acid
作者:Toshiya Hirahama、Misaki Umezawa、Mitsuru Shoji
DOI:10.1016/j.tetlet.2020.151824
日期:2020.4
Michael addition of 2-phenylmalononitrile onto α,β-unsaturated carbonyl compounds through a visible-light-induced photoredox reaction. A radical species, generated from the Michael nucleophile under blue-light irradiation in the presence of an acridinium catalyst, could connect to the β-carbon of the carbonyl substrate, to furnish γ, γ -dicyanocarboxylic acid derivatives in good yields.
ACTINIC-RAY-CURABLE INK-JET INK, LIGHT-SHIELDING FILM, AND PRODUCTION METHOD FOR LIGHT-SHIELDING FILM
申请人:FUJIFILM Corporation
公开号:EP3689981A1
公开(公告)日:2020-08-05
An active energy ray curable-type ink jet ink containing: titanium black; and a monomer A which is a non-aromatic heterocyclic compound having an ethylenically unsaturated double bond, a light shielding film, and a method of manufacturing the light shielding film.
HEAT ACCUMULATOR, HEAT ACCUMULATION SYSTEM, AND HEAT ACCUMULATION METHOD
申请人:Mitsubishi Electric Corporation
公开号:EP3809084A1
公开(公告)日:2021-04-21
A heat storage unit includes: a heat storage material that contains water and high polymers that exhibit hydrophilicity or hydrophobicity depending on a temperature; a heat exchanger that causes heat exchange to be performed between a heating fluid and the heat storage material to heat the heat storage material and store heat in the heat storage material, and causes heat exchange to be performed between a heat utilization fluid and the heat storage material to receive heat from the heat storage material and cause heat to be transferred from the heat storage material; and a container that is filled with the heat storage material and houses the heat exchanger.