Process for the manufacture of aromatic 1,3-diketones
申请人:Hoechst Aktiengesellschaft
公开号:US03937737A1
公开(公告)日:1976-02-10
Aromatic 1,3-diketones are produced by reacting aromatic compounds with acetoacetyl fluoride optionally substituted in .gamma.-position by fluorine, chlorine and/or bromine, in hydrofluoric acid of at least 90% strength at a temperature of from about -40 to +50.degree.C. The products obtained are important starting products and intermediates for the manufacture of dyestuffs, plastics and pharmaceuticals. Furthermore they can be used for the formation of metal complexes and metal extracting agents, solution intermediaries and solvents.
Photo-physical, theoretical and photo-cytotoxic evaluation of a new class of lanthanide(<scp>iii</scp>)–curcumin/diketone complexes for PDT application
作者:Dulal Musib、Mrityunjoy Pal、Md Kausar Raza、Mithun Roy
DOI:10.1039/d0dt02082f
日期:——
dark; IC50 in visiblelight ∼60 μM) of the complexes in MCF-10A (normal cells) in the dark and in visiblelight suggested their potential for targetinganticanceractivity. Further studies showed that complex 4 induced caspase-dependent apoptosis through mitochondrial damage, mitochondrial respiration inhibition and reactive oxygen species (ROS) elevation. The cytosolic localization of complex 4 in HeLa
本文中,我们报道了一类新的具有分子式[La(1,10-phen)2(L)(NO 3)2 ]的姜黄素基镧系元素(III)配合物的合成,表征,光物理和光细胞毒性研究。(1 -4),其中L = 1-苯基丁烷-1,3-二酮(L 1,1),1-(蒽-9-基)丁烷-1,3-二酮(L 2,2),1-(3a中1,5A 1个-dihydropyren -1-基)丁烷-1,3-二酮(L 3,3)和姜黄素(L 4,4)。综合大楼1通过单晶X射线晶体学表征,并且其表现出La(III)的N 4 O 6配位。低能且长寿命的三重态激发态的存在使发光复合物(2-4)可以被可见光(400-700 nm,10)激活时以高产率产生单线态氧(1 O 2)。 J cm -2),其可能负责癌细胞的光消融。复合物(2-4)在可见光(400-700 nm,10 J cm -2)存在下在HeLa和MCF-7细胞中表现出显着的光细胞毒性,光细胞毒性指数为4-50
Controlled reversible single-molecule white-light emission from keto-enol interconversion of β-diketone dyes
作者:Zhenhui Wei、Yongsheng Zhang、Xin Zhang
DOI:10.1016/j.dyepig.2023.111347
日期:2023.8
β-diketone ketonic and enolic form dyes were prepared, where ketonic form dyes were obtained under basic solvent condition, and enolic form dyes were obtained by recrystallization. High-quality, green-light emitting single crystals of an enolic form dye were prepared. X-ray single crystal diffraction results reveal intramolecular H-bond-connected, bent-shaped π-system structure of an enolic form dye
Compositions for use as a Signal Generation Component and Methods of Using Same
申请人:Craig Alan R.
公开号:US20090325316A1
公开(公告)日:2009-12-31
Compositions suitable for use as signal generation components of an immunoassay, and methods for their use. According to one aspect of the invention, the composition includes a carrier having a coating of an aminodextran and a metal chelate incorporated therein. The metal chelate is present in the amount of at least 0.065 μM per milligram of carrier, and the aminodextran coating density averaging at least about 45 μg per milligram of carrier. In another aspect of the invention, carrier is dyed with a complex having the formula:
M(L1)
x
(L2)
y
,
wherein M is a metal selected from the group consisting of europium, terbium, dysprosium, samarium, osmium and ruthenium;
L1 is a ligand selected from the group consisting of DPP, TOPO, TPPO;
L2 comprises a ligand having the formula
wherein R is one or more substituents, each substituent comprising an electron donating group; n=2-10; x=1-2; and y=2-4.