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Showing 1 to 15 of 15 for “"Thiophenol"”.
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A computational study of the structure, bonding, and thermochemical properties of primary Ozonides derived from substituted Phenol and Thiophenol
… to chlorophenol, dihydroxybenzene and hydroxythiophenol are presented here. Theoretical calculations for the chlorophenol, dihydroxybenzene and hydroxythiophenol ozonolysis yields reaction barriers of 56.8, 11.2 and 10.4 kcal/mol for the formation of the most stable POZs, respectively. The …
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Directed Ortho-Metalations of Benzyl Alcohols, Arenesulfonic Acids, and Thiophenol: New Methodology for Electrophilic Aromatic Substitutions and the Preparation of New Sulfuranes
Dilithio derivative I is used in the preparation of optically active monocyclic dialkoxysulfurane II and the analogous chlorosulfurane and trifluoromethanesulfonate. Examinations of the possible use
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Synthesis and characterisation of small molecule and macromolecular photoredox catalysts for radical thiol-ene reactions
… The isolated yields, from the reaction between thiophenol and styrene, were higher for the [Ru(bpy)3](PF6)2 complex (54%) in comparison to the ligand-modified mononuclear complexes (8–24%). This result was expected since [Ru(bpy)3](PF6)2 exhibited the most positive excited state reduction …
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X-Ray Crystal Structure of Au36(SPh-pCH3)24 Nanomolecules
… ligand such as tert-butylbenzene thiol, thiophenol and cyclopentane thiol have been reported. It has been predicted that aromatic thiol protected Au36(SR)24 NM have same core structures like the other reported Au36(SR)24 NMs. Due to the steric and electronic conjugation effects the …
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Enantioselective synthesis of alkenyl aziridine carboxylates and 4-phenylsulfenyl prolines
… bond configuration. The Michael addition of thiophenol to aminosulfoxonium-substituted gamma,delta-unsaturated alpha-amino acids favours from Re-face. The resulted sulfides were applied to synthesize 4-phenylsulfenyl proline derivatives in overall good yields.
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Remote Lithiations of Carboxamides: The Manifestation of a Post-Complexation Proximity Effect (Homoenolate)
… and (gamma) substituted with vinyl, phenyl and thiophenol groups, are reported. N,N-Diisopropyl-2-methylpent-4-enecarboxamide (59), N,N-diisopropyl-2-methyl-3-phenylpropanecarboxamide (139), N,N-diisopropyl-2-methyl-3-phenylthiopropanecarboxamide (174), …
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Diels -Alder reactions of [60]fullerene with 1,2,4,5-tetrazines and additions to [60]fullerene-tetrazine monoadducts
… products. Nucleophilic attacks by nonanethiol, thiophenol, methanol and dimethylamine have all been studied and are all are proposed to proceed along a similar pathway.</p>
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Design, Synthesis, and Biological Screening of Novel Cucurbitacin/ Estrone Analogs Towards Treatment of Melanoma
… functionalities at C-25 via Aldol reaction, 2) Thiophenol and azide addition reactions on C-24, 3) <em>Trans, pseudo</em>, and <em>cis</em> configuration of B/C ring juncture of the steroidal skeleton. Twelve synthetic steps were carried out resulting in 20 novel intermediate and final steroidal …
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Contributions to benzothiopyran chemistry
… has been prepared by the cyclocondensation of a thiophenol with cz,13-unsaturated carboxylic acids in methanesuiphonic acid and selectively oxidised to their 1-oxides and 1,1-dioxides. Reduction and dehydration of the resulting benzothiopyran-4-ols gave the 2H-[1]benzothiopyrans and their …
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I. Dissociation and aromatization of a semibenzene. Reactions of triphenylmethyl and methyl isobutyryl radicals. II. The chemistry of alpha- and beta- azo radicals
… or, inefficiently, on direct photolysis. Whereas thiophenol or triplet 9-fluorenone aromatize 1, thermolysis in the presence of 1,4-cyclohexadiene allows trapping of 5 and oligomeric radicals. From the measured heat of aromatization, the C-C bond dissociation enthalpy of 1 and its analog lacking …
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Novel reaction discovery with rapid high-throughput experimentation via infrared spectroscopy and enzymatic electrochemical oxidation of alcohols
… studies of uncommon reaction partners such as thiophenol and pyrone. This preliminary success suggests that this platform could be transferable to other multicomponent reactions such as the Suzuki cross-couplings and Buchwald-Hartwig aminations. With deepened understanding of reagent selection …
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Multi-Photon Spectroscopic Studies of Molecule/Metal Interfaces and Graphene
… TPPE measurements on two benzenthiol species, thiophenol and p-fluorothiophenol, on Cu(111) focus on the role of adsorbates in shifting surface polarization and effecting surface electron confinement. As the coverage of each molecule increases, their photoemission-measured work functions …
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Highly-selective Chemiresistive Sensing and Analysis of Vapors Using Functionalized Nanotubes
… [4], polybromide-SWNT [5] , poly(p-thiophenol-co-SWNT [6] and poly(p-benzonitrile-co-SWNT [7]. The ability to manufacture total organic sensors was demonstrated using carbon nanotube based architectures. </p> <p>These derivatized-nanotube-based materials are designed to serve as …
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Synthesis and selective reactivity of 14β-formyl 19-norsteroids
… efficient route entailed conjugate addition of thiophenol to the dihydrocycloadduct to give methyl 17β3-acetoxy-3-methoxy-15a-phenylthio-14, 17α-ethanoestra- l,3,5(10)-triene-16f3-carboxylate. Reductive deoxygenation of the functionality on C(16) gave the 16β3-methyl 15a-phenylthio intermediate, …
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ESIMS targeted synthesis of novel {Pt2S2} derivatives
… 2-mercapto-1-methylimidazole, and 2-amino- thiophenol were reacted with 2 to give [Pt2(μ-S)(μ-S C2H4NHC( O)CH3)(PPh3)4]+ (38), [Pt2(μ-S)(μNS-S C3H2N2CH3)(PPh3)4]+ (17), and [Pt2(μ-S)(μ-S C6H4NH2)- ii (PPh3)4]+ (39) respectively which were isolated as 38[BF4], 17[BETI], and 39[BF4]. 17[BETI] …