1-(3, 4-Dichlorobenzenesulfonyl)-3-Methyl-1H-Imidazolium Chloride: An Efficient Catalyst for the Synthesis of 1, 8-Dioxo-Octahydroxanthenes under Microwave Irradiation [PDF]
The reaction of 5,5-dimethyl-1,3-cyclohexanedione with various aromatic aldehydes to give corresponding 1,8-dioxo-octahydroxanthenes in aqueous medium has been reported.
Kesturu Venkatarayappa Jagannath, . +1 more
core
Lanthanum triflate triggered synthesis of tetrahydroquinazolinone derivatives of N-allyl quinolone and their biological assessment [PDF]
A series of 24 derivatives of tetrahydroquinazolinone has been synthesized by one-pot cyclocondensation reaction of N-allyl quinolones, cyclic β-diketones and (thio)urea/N-phenylthiourea in presence of lanthanum triflate catalyst.
Jardosh Hardik H., Patel Manish P.
core +1 more source
Synthesis and antibacterial activity of 2-phenyl-5-aryl-4, 5, 6, 7, 8, 9-hexahydro-1,2.4-triazolo[1,5-A]quinazolines [PDF]
A method for the synthesis of 2-phenyl-5-aryl-4, 5, 6, 7, 8,9- hexahydrotriazolo[1,5-a] quinazolines was developed.3-Amino-5-phenyl-1,2,4-triazole formed Schiff’s bases with aromatic aldehydes which on treatment with cyclohexanonein the presence of ...
Ain Khan, Misbahul +4 more
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N-Butylpyrrolidinone as a dipolar aprotic solvent for organic synthesis [PDF]
Dipolar aprotic solvents such as N-methylpyrrolidinone (or 1-methyl-2-pyrrolidone (NMP)) are under increasing pressure from environmental regulation. NMP is a known reproductive toxin and has been placed on the EU “Substances of Very High Concern” list ...
Farmer, Thomas James +4 more
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Study of trace elements in BioArena system and in in vivo conditions [PDF]
The adsorbent layer system is especially suitable for the biological evaluation of different compounds and trace elements as well. Present experiments showed that formaldehyde (HCHO) molecules participate in the antibiotic activity of Cu (II) ion, an ...
Calabrese E. J. +15 more
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Synthesis and Molluscicidal Activity of Some Newly Substituted Chromene and Pyrano[2,3-c]pyrazole Derivatives [PDF]
The arylidene derivatives 3a-f react with 1,3-cyclohexanedioneand dimedone 4a,b to afford the 4-(2- or 3-pyridyl) or 4-pipronyl-chromene derivatives 6a-l.
Abdelrazek, Fathy M. +2 more
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12-(3,4,5-Trimethoxyphenyl)-2,3,4,12-tetrahydro-1H-5-oxatetraphen-1-one: crystal structure and Hirshfeld surface analysis [PDF]
In the title compound, C26H24O5, the pyran ring has a flattened-boat conformation, with the 1,4-related ether O and methine C atoms lying 0.1205 (18) and 0.271 (2) Å, respectively, above the least-squares plane involving the doubly bonded C atoms (r.m.s
Iniyavan, P. +5 more
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Synthesis and Characterization of Enamine- And Schiff-Base Metal Complexes [PDF]
Mentor: Dr. Colin CairnsEnamine- and Schiff-Base metal complexes have shown the potential to be catalysts in oxidation reduction reactions. To model these potential catalytic abilities, acetylacetone and 2-acetyldimedone were used to prepare enamine ...
Denton, Kyle
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Synthesis of Curcumin Derivatives and Analysis of Their Antitumor Effects in Triple Negative Breast Cancer (TNBC) Cell Lines [PDF]
We analyzed antitumor effects of a series of curcumin analogues. Some of them were obtained by reaction of substitution involving the two phenolic OH groups of curcumin while the analogues with a substituent at C-4 was prepared following an original ...
Barattucci A +5 more
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[Fe(III)(Salen)Cl] Complex as a Catalyst for the Synthesis of 1, 8-Dioxo-Octahydroxanthene Derivatives [PDF]
1, 8-Dioxo-octahydroxanthene derivatives have efficiently been synthesized from dimedone and aromatic aldehydes using [Fe(III)(salen)Cl] complex as an efficient and homogeneous catalyst in molten tetrabutyl ammonium bromide.
H. Khabazzadeh +2 more
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