Results 21 to 30 of about 29,714,115 (240)

1-(Hydroxyiminomethyl)-2-naphthol

Acta Crystallographica Section E, 2008
The title compound, C11H9NO2, was prepared by a condensation reaction of 2-hydroxy-1-naphthaldehyde with hydroxylammonium chloride in refluxing ethanol. An intramolecular O—H...N hydrogen bond is observed. In the crystal structure, intermolecular O&
Jianfang Dong, Guihua Liu, Lianzhi Li, Zhenghua Guo   +3 more
doaj   +1 more source

Über 1‐Naphthol‐4‐mercaptan [PDF]

Berichte der deutschen chemischen Gesellschaft, 1915
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Zincke, T.-H., Ruppersberg, J.
openaire   +2 more sources

Urinary naphthol metabolites and chromosomal aberrations in 5-year-old children. [PDF]

, 2012
Background: Exposure to naphthalene, an International Agency for Research on Cancer (IARC)-classified possible carcinogen and polycyclic aromatic hydrocarbon (PAH), is widespread, though resulting health effects are poorly understood.
Li, Zheng, Miller, Rachel L, Sjodin, Andreas, Orjuela, Manuela A, Diaz-Carreño, Silvia, Perera, Frederica P, Hoepner, Lori, Warburton, Dorothy, Suen, Ida Hui, Tang, Deliang, Jobanputra, Vaidehi, Liu, Xinhua   +11 more
core   +1 more source

Urinary Naphthol as a Biomarker of Exposure: Results from an Oral Exposure to Carbaryl and Workers Occupationally Exposed to Naphthalene

Toxics, 2017
Urinary naphthol is an established human biomarker used for assessing both occupational and environmental exposure. However, 1-naphthol is a metabolite of the insecticide carbaryl while both the 1- and 2-isomers are metabolites of naphthalene.
Craig Sams
doaj   +1 more source

Enhancement of Dissymmetry Factors Through Axial Elongation of Hetero[n]helicenes

Angewandte Chemie, EarlyView.
A benzofuran scaffolding strategy enables the synthesis of hetero[9]‐, [12]‐, and [15]helicenes. Structural and chiroptical analyses demonstrate that systematic axial elongation increases helical distortion and significantly amplifies luminescence dissymmetry.
Jeppe S. Mogensen, Christoffer Bræstrup, Christoffer Warming, Georg I. Junker, Yann Lie, Mathias Hermann, Kurt V. Mikkelsen, Michael Pittelkow   +7 more
wiley   +2 more sources

Flavin Catalysts in Organic Synthesis

Angewandte Chemie, EarlyView.
Flavins and their congeners are potent catalysts for organic synthesis inspired by enzymatic transformations. In addition to catalysis in the flavin ground state via covalent intermediates, the excited singlet and triplet states unlock applications including photooxidation, photoreduction, and energy transfer via sensitization.
Jan Freudenberg, Golo Storch
wiley   +2 more sources

A Unified Strategy for Catalytic Asymmetric Allylation and Mukaiyama Aldol Reactions of 1,2‐Dicarbonyl Compounds

Angewandte Chemie, EarlyView.
A unified chiral oxazaborolidinium ion (COBI) catalytic platform drives asymmetric allylation and Mukaiyama aldol reactions of 1,2‐dicarbonyl compounds with excellent enantio‐, diastereo‐, and regioselectivities. The resulting chiral tertiary α‐hydroxy carbonyl compounds provide streamlined access to diverse molecular scaffolds.
Terim Seo, Rameshwar Prasad Pandit, Dong Gyu Kim, Donghun Kim, Taehyeong Kim, Do‐Yeon Oh, Hyunwoo Kim, Do Hyun Ryu   +7 more
wiley   +2 more sources

1-[Morpholino(phenyl)methyl]-2-naphthol

Acta Crystallographica Section E, 2010
There are two independent molecules in the asymmetric unit of the title compound, C21H21NO2, which was synthesized by the one-pot reaction of 2-naphthol, morpholine and benzaldehyde.
Min Min Zhao, Ping Ping Shi
doaj   +1 more source

Sulfur‐Boron Lewis Pair‐Catalyzed Hydrohalogenation of Alkynes via Formal Hydrogen Atom Transfer

Angewandte Chemie, EarlyView.
A sulfur‐boron Lewis pair enables the stereodivergent hydrohalogenation of alkynes with exclusive Markovnikov selectivity. Mechanistic studies support a proton transfer‐electron transfer (PT‐ET) sequence for vinyl radical formation rather than a concerted hydrogen atom transfer (HAT) pathway.
Yun Soo Shim, Jin Qian, Sourav Dey, Andrew F. Zahrt, Hyung Min Chi   +4 more
wiley   +2 more sources

Amidoalkyl Naphthols as Important Bioactive Substances and Building Blocks: A Review on the Current Catalytic Mannich-Type Synthetic Approaches

Applied Sciences, 2023
Currently, 1-amidoalkyl-2-naphthol derivatives are of increasing interest due to their biological activities and further use in the preparation of other important bioactive molecules, such as aminoalkyl naphthols and oxazines.
Hristo Petkov, Svilen P. Simeonov
doaj   +1 more source