Results 1 to 10 of about 5,721 (226)

Theoretical Study on the Copper-Catalyzed ortho-Selective C-H Functionalization of Naphthols with α-Phenyl-α-Diazoesters [PDF]

Molecules, 2023
The aromatic C(sp2)-H functionalization of unprotected naphthols with α-phenyl-α-diazoesters under mild conditions catalyzed by CuCl and CuCl2 exhibits high efficiency and unique ortho-selectivity.
Xiaoli Zhu, Xunshen Liu, Fei Xia, Lu Liu
doaj   +2 more sources

Efficient Cleavage of pUC19 DNA by Tetraaminonaphthols [PDF]

ChemistryOpen
In an attempt to create models of phosphodiesterases, we previously investigated bis(guanidinium) naphthols. Such metal‐free anion receptors cleaved aryl phosphates and also plasmid DNA.
Catharina Kost, Ute Scheffer, Elisabeth Kalden, Michael Wilhelm Göbel   +3 more
doaj   +2 more sources

Ortho-ester-substituted diaryliodonium salts enabled regioselective arylocyclization of naphthols toward 3,4-benzocoumarins [PDF]

Beilstein Journal of Organic Chemistry
Cyclic annulation involving diaryliodonium salts is an efficient tool for the construction of two or more chemical bonds in a one-pot process.
Ke Jiang, Cheng Pan, Limin Wang, Hao-Yang Wang, Jianwei Han   +4 more
doaj   +2 more sources

Synthesis and dyeing performance of some amphiphilic naphthalimide azo disperse dyes on polyester fabrics [PDF]

Journal of the Serbian Chemical Society, 2020
A series of monoazo disperse dyes were synthesized by coupling diazotized 4-amino-N-dodecyl-1,8-naphthalimide with N,N-dialkyl anilines and naphthol derivatives.
Ameuru Umar Salami, Yakubu Mohammed Kabir, Bello Kasali Ademola, Nkeonye Peter Obinna, Halimehjani Azim Ziyaei   +4 more
doaj   +1 more source

Aminocatalytic stereoselective synthesis of (E)-α-naphthyl enals via cross-coupling-like reaction of 1-bromo-2-naphthols with enals

Green Synthesis and Catalysis, 2021
A diphenyl prolinol TMS ether-catalyzed stereoselective reaction of 1-bromo-2-naphthols with enals has been developed. The organocatalyzed cross coupling-like reaction servers an efficient approach to sterically congested (E)-α-naphthyl enals. The formal
Xixi Song, Fangchen Song, Xiang Meng, Peng Ji, Wei Wang   +4 more
doaj   +1 more source

Naphtho[1,8-de][1,2]Oxazin-4-ol: Precursor to 1,2,8-Trisubstituted Naphthalenes and 1-Unsubstituted Naphtho[1,2-d]isoxazole 2-Oxide: A Novel Isomerization of the N-Oxide to Nitrile Oxide en Route to Isoxazol(in)es

Molecules, 2023
Naphtho[1,8-de][1,2]oxazin-4-ol and its acyl or benzyl derivatives ring open to various 2,8-dihydroxy-1-naphthonitriles, which, through (de)protection protocols and reduction, afford the target (E)-2-hydroxy-8-methoxy-1-naphthaldehyde. This was converted
Ioannis E. Gerontitis, Petros G. Tsoungas, George Varvounis   +2 more
doaj   +1 more source

Photochemical Reactivity of Naphthol-Naphthalimide Conjugates and Their Biological Activity

Molecules, 2021
Quinone methide precursors 1a–e, with different alkyl linkers between the naphthol and the naphthalimide chromophore, were synthesized. Their photophysical properties and photochemical reactivity were investigated and connected with biological activity ...
Matija Sambol, Patricia Benčić, Antonija Erben, Marija Matković, Branka Mihaljević, Ivo Piantanida, Marijeta Kralj, Nikola Basarić   +7 more
doaj   +1 more source

Electrochemical Organic Synthesis of Electron-Rich Biaryl Scaffolds: An Update

Molecules, 2021
Biaryl scaffolds are widely spread in biologically important natural products, in numerous therapeutic agents, but they are also considered a privileged class of ligands and (organo)catalysts; therefore, the development of efficient alternative ...
Fabrizio Medici, Simonetta Resta, Alessandra Puglisi, Sergio Rossi, Laura Raimondi, Maurizio Benaglia   +5 more
doaj   +1 more source

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

Synthesis of spirocyclic enones by rhodium-catalyzed dearomatizing oxidative annulation of 2-alkenylphenols with alkynes and enynes [PDF]

, 2014
The dearomatizing oxidative annulation of 2-alkenylphenols with alkynes and enynes proceeds with high yields and regioselectivities under Rh(III) catalysis.
Ackermann, Ackermann, Ackermann, Chinnagolla, Colby, Deponti, Ding, Dong, Dong, Dooley, Engle, Engle, Hao, Hu, Huang, Huckins, Huestis, Kuram, Li, Li, Lyons, Muralirajan, Nan, Nemoto, Nemoto, Nemoto, Nemoto, Oguma, Peng, Quiñones, Reddy, Reddy Chidipudi, Roche, Rousseaux, Rudolph, Saito, Satoh, Seoane, Seoane, Srikrishna, Sun, Sun, Wang, Wencel-Delord, Wu, Yeung, Yoshida, Zhang, Zhao, Zhao, Zheng, Zhuo, Zhuo   +52 more
core   +4 more sources