Gold- and Silver-Catalyzed Reactions of Propargylic Alcohols in the Presence of Protic Additives
作者:Matthew N. Pennell、Peter G. Turner、Tom D. Sheppard
DOI:10.1002/chem.201102830
日期:2012.4.10
secondary and tertiary propargylicalcohols undergo a Meyer–Schusterrearrangement to give enones at room temperature in the presence of a gold(I) catalyst and small quantities of MeOH or 4‐methoxyphenylboronic acid. The syntheses of the enone natural products isoegomaketone and daphenone were achieved using this reaction as the key step. The rearrangement of primary propargylicalcohols can readily be combined
Simple access to β-trifluoromethyl-substituted ketones via copper-catalyzed ring-opening trifluoromethylation of substituted cyclopropanols
作者:Dzmitry G. Kananovich、Yulia A. Konik、Dzmitry M. Zubrytski、Ivar Järving、Margus Lopp
DOI:10.1039/c5cc02386f
日期:——
A variety of β-trifluoromethyl ketones have been easily prepared by CuCl-catalyzed ring-opening trifluoromethylation of cyclopropanols with Togni reagent.
一种多样的β-三氟甲基酮已经通过CuCl催化的环丙醇与Togni试剂的环开三氟甲基化反应轻松制备。
Regioselective oxidation of internal olefins bearing neighboring oxygen functions by means of palladium catalysts. Preparation of β-alkoxy or acetoxy ketones from allyl and homoallyl ethers or esters
作者:Jiro Tsuji、Hideo Nagashima、Kimihiko Hori
DOI:10.1016/s0040-4039(00)87430-4
日期:1982.1
of β- and γ-alkoxy (acetoxy) ketones, which are important precursors of vinyl ketones and 1,4-diketones, respectively, is presented. With PdCl2/CuCl/O2 or PdCl2/p-benzoquinone catalyst system, internalolefins bearing allylic alkoxy or acetoxy group underwent regioselective oxidation to form the corresponding β-alkoxy or β-acetoxy ketones. Similarly, γ-acetoxy ketones were obtained from homoallyl acetates
提出了一种新的β-和γ-烷氧基(乙酰氧基)酮的制备方法,它们分别是乙烯基酮和1,4-二酮的重要前体。在PdCl 2 / CuCl / O 2或PdCl 2 /对苯醌催化剂体系中,带有烯丙基烷氧基或乙酰氧基的内烯烃进行区域选择性氧化,形成相应的β-烷氧基或β-乙酰氧基酮。类似地,从具有高区域选择性的具有内烯烃的均烯丙基乙酸酯获得γ-乙酰氧基酮。
Photosensitive composition, image-forming material and image -forming method employing it
申请人:MITSUBISHI CHEMICAL CORPORATION
公开号:US20010007736A1
公开(公告)日:2001-07-12
A photosensitive composition comprising (a) an ethylenically unsaturated double bond-containing compound, (b) a sensitizing dye and (c) a photopolymerization initiator, wherein the sensitizing dye is a phthalocyanine compound showing the maximum absorption within a range of from 750 to 1,200 nm.
COLORED RESIN COMPOSITIONS FOR COLOR FILTER, COLOR FILTER, ORGANIC EL DISPLAY, AND LIQUID-CRYSTAL DISPLAY DEVICE
申请人:SAKO Naoki
公开号:US20110049444A1
公开(公告)日:2011-03-03
A colored resin composition is provided which is capable of providing blue pixels of a color filter that have excellent light resistance and which satisfies heat resistance required in color display production steps. A color filter having blue pixels with excellent color purity and transmittance and an organic EL display and a liquid-crystal display device both having satisfactory blue purity are also provided by using the colored resin composition. The colored resin composition for color filter includes (a) a binder resin, (b) a solvent, and a triarylmethane type coloring matter of a specific structure represented by general formula (I). The color filter, organic EL display, and liquid-crystal display device are produced using the colored resin composition.