Photochromism of dihydroquinolines [PDF]
Reversible photochromic reactions, in which absorption spectrum of chemical compound may be shifted by application of visible or ultraviolet light, and then returned to original state by heating, are observed for certain members of 1,2-dihydroquinoline ...
Becker, R. S., Kolc, J.
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Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to α,β-Unsaturated Cyclic Electrophiles [PDF]
This account describes our laboratory’s efforts in the development of a palladium-catalyzed asymmetric conjugate addition of arylboronic acids to cyclic conjugate acceptors.
Holder, Jeffrey C. +2 more
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Chemical Profiles of Cultivated Agarwood Induced by Different Techniques
Agarwood is the resinous wood produced in some Aquilaria species and is highly valued for wide usages in medicine, incense, and perfume. To protect the threatened Aquilaria species, the cultivation of Aquilaria sinensis and artificial agarwood induction ...
Tingting Yan +4 more
doaj +1 more source
Comparison of species classification models of mass spectrometry data : kernel discriminant analysis vs. random forest : a case study of Afrormosia (Pericopsis elata (Harms) Meeuwen) [PDF]
Rationale: The genus Pericopsis includes four tree species of which only Pericopsis elata (Harms) Meeuwen is of commercial interest. Enforcement officers might have difficulties discerning this CITES-listed species from some other tropical African timber
Beeckman, Hans +6 more
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A new chromone from agarwood and pyrolysis products of chromone derivatives.
A new chromone, 2-(2-4'-methoxyphenylethyl) chromone (I) was isolated together with 2-(2-phenylethyl) chromone (II : flidersiachromone) from agarwood (Japanese name ; JINKOH). On pyrolysis at 150°C, I and II were found to produce 4-methoxybenzaldehyde and benzaldehyde, respectively.
KEIJI HASHIMOTO +5 more
openaire +2 more sources
Synthesis of new hydroxy-2-styrylchromones [PDF]
http://apps.isiknowledge.com/full_record.do?product=UA&search_mode=GeneralSearch&qid=5&SID=V1M67gPH3IpI7j5a98j&page=1&doc=1&colname=WOSHydroxy-2-styrylchromones 5a−i were prepared by debenzylation of benzyloxy-2-styrylchromones 3a−i, which were ...
Cavaleiro, José +2 more
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The ethyl ether extract of agarwood from an Aquilaria plant afforded six new sesquiterpenoids, Agarozizanol A − F (1−6), together with four known sesquiterpenoids and six known 2-(2-phenylethyl)chromones.
Li Yang +9 more
semanticscholar +1 more source
The reactions between o-hydroxylphenyl-functionalized enaminones and sulfonyl hydrazines providing 3-sulfenylated chromones via domino chromone ring construction and C(sp2)–H bond sulfenylation have been achieved under transition-metal-free conditions by
Yanhui Guo +3 more
doaj +1 more source
Inhibition of NF-kB activation and cytokines production in THP-1 monocytes by 2-styrylchromones [PDF]
Nuclear factor kappa B (NF-kB) is one of the most important transcription factors whose modulation triggers a cascade of signaling events, namely the expression of many cytokines, enzymes, chemokines, and adhesion molecules, some of which being potential
Capela, João Paulo +9 more
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2,20-Dihydroxybenzophenones and their carbonyl N-analogues as inhibitor scaffolds for MDR-involved human glutathione transferase isoenzyme A1-1 [PDF]
The MDR-involved human GSTA1-1, an important isoenzyme overexpressed in several tumors leading to chemotherapeutic-resistant tumour cells, has been targeted by 2,2′-dihydroxybenzophenones and some of their carbonyl N-analogues, as its potential ...
Clonis, Yannis D. +7 more
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