A series of novel steroidal 5α,8α-endoperoxide derivatives bearing semicarbazone (7a−g) or thiosemicarbazone (7h−k) side chain were designed, synthesized and evaluated for their cytotoxicities in four human cancer cell lines (HepG2,
Liwei Ma +5 more
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Functionalization of chitosan with 3,4-dihydroxybenzoic acid for the adsorption/collection of uranium in water samples and its determination by inductively coupled plasma-mass spectrometry [PDF]
A chitosan resin derivatized with 3,4-dihydroxybenzoic acid moiety (CCTS-DHBA resin) was newly synthesized for the collection/concentration of trace uranium by using cross-linked chitosan (CCTS) as base material, and the adsorption behavior of uranium as
Gao, Yun Hua +6 more
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(E)-1-(4-Fluorophenyl)ethan-1-one semicarbazone
In the title compound, C9H10FN3O, the semicarbazone group is nearly planar, with the maximum deviation of 0.044 (1) Å for one of the N atoms. The mean plane of semicarbazone group forms a dihedral angle of 30.94 (4)&
Hoong-Kun Fun +4 more
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THE STRUCTURE OF 5-AMINO-4-METHYL-1-ISOQUINOLINECARBALDEHYDE THIOSEMICARBAZONE HYDROCHLORIDE, C12H14N5S+.CL- [PDF]
Mr=295.80 , P21/n , a=8.284(1), b= 13.906 (1), c= 12.040 (2) A, fl= 92.95 (1) °, V= 1385.0 (5) ,/k 3, Z = 4, D m = 1.42, D x = 1.418 Mg m -3, 2(Cu K~t) = 1.54178 A,, g = 3.8134 mm -~, F(000) = 616, R =0.061 for 628 unique significant reflections ...
KURODA, R, NEIDLE, S, WILMAN, D
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DFT (B3LYP) COMPUTATIONAL STUDY ON THE MECHANISMS OF FORMATION OF SOME SEMICARBAZONES [PDF]
Thermodynamic and kinetic mechanisms of forming six semicarbazones have been investigated computationally by DFT B3LYP method. All the reactions proceed via two transitions and include two consecutive steps: bimolecular and unimolecular.
Abdulfatai Siaka +3 more
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[(E)-(1-Phenylethylidene)amino]urea methanol monosolvate
In the title compound, C9H11N3O·CH4O, the semicarbazone moiety is nearly planar [maximum deviation = 0.017 (2) Å] and is twisted by a dihedral angle of 29.40 (13)° with respect to the phenyl ring ...
Guang-Bin Liu +4 more
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Thiosemicarbazone organocatalysis:Tetrahydropyranylation and 2-deoxygalactosylation reactions and kinetics-based mechanistic investigation [PDF]
Thiosemicarbazones are introduced as a new class of highly tunable and efficient organocatalysts. We showcase this by studies of the tetrahydropyranylation reaction, where insights to the mechanism was achieved by a double Hammett analysis of both the ...
Akselsen, Olivia M. +4 more
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Synthesis and Spectral Studies on Thorium (IV) Coordination Compounds of 4-[N-(2-Hydroxybenzalidene)amino] AntipyrineSmeicarbazone and 4-[N-Cinnamalidene) amino] ANtipyrine Semicarbazone [PDF]
The stereochemistry of the actinide elements has recently undergone considerable development and a wide variety of coordination numbers and geometries have been observed.
Ram K. Agrawal +2 more
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(E)-1-(4-Chlorophenyl)ethanone semicarbazone
In the title compound, C9H10ClN3O, the semicarbazone group is approximately planar, with an r.m.s. deviation from the mean plane of 0.054 (1) Å.
Hoong-Kun Fun +4 more
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A preparation of phenylacetone. [PDF]
Thesis (M.A.)--Boston ...
Terry, Lewis Isaac
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