Results 131 to 140 of about 1,317 (206)

Effects of carob rich-polyphenols on oxidative stress markers and physical performance in taekwondo athletes. [PDF]

Biol Sport
Gaamouri N, Zouhal H, Suzuki K, Hammami M, Ghaith A, El Mouhab EH, Hackney AC, Laher I, Ounis OB.   +8 more
europepmc   +1 more source

I₂/DMSO-mediated oxidative C-C and C-heteroatom bond formation: a sustainable approach to chemical synthesis. [PDF]

RSC Adv
Singhal R, Choudhary SP, Malik B, Pilania M.   +3 more
europepmc   +1 more source

Design and Synthesis of new Inhibitors of Carcinogenic Processes [PDF]

, 2011
ABBATE, Ilenia
core  

2‐Aminoindoles and 2‐Iminoindolines as Viable Precursors of Indole‐fused Nitrogenated Polyheterocycles.

Advanced Synthesis &Catalysis, Volume 367, Issue 6, March 18, 2025.
The synthesis of architecturally complex polyheterocyclic structures embedding the indole ring represents a growing field of interest. Carbolines and their partially dehydro derivatives, pyrazinoindoles, indoloindoles, azepinoindoles and other medium ...
Marino Petrini
semanticscholar   +2 more sources

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Stitching Large Aromatic Polyheterocycles

Synfacts, 2023

semanticscholar   +2 more sources

Visible-Light-Promoted Cyanoalkylation/Cyclization Cascade Reaction to Assemble Polyheterocycles in Continuous Flow.

Journal of Organic Chemistry, 2023
This study describes a visible-light-induced cascade reaction for preparing cyanoalkyl-containing polyheterocycles initiated by the photoinduced radical cascade addition of N-arylacrylamide derivatives using cyclic oxime esters as radical sources ...
Shanhong Zhu, Ji-kang Liu, Long-Zhou Qin, Jian Wang, Xiu Duan, Xin Yuan, Jiang-Kai Qiu, Kai Guo   +7 more
semanticscholar   +1 more source

Photochemical Synthesis of S,N,O-Containing Polyheterocycles via an α-C(sp3)-H Functionalization/Radical Cyclization Cascade.

Organic Letters, 2023
A highly effective approach based on an organophotocatalytic α-C(sp3)-H functionalization/radical cyclization cascade has been developed. This method enables the synthesis of various tricyclic heterocycles containing S, O, and N atoms with excellent site
Shi-Yan Cheng, Jiapeng Liao, Yu-Mei Lin, Lei Gong   +3 more
semanticscholar   +1 more source

Diastereoselective construction of carbo-bridged polyheterocycles by a three-component tandem annulation reaction.

Organic and biomolecular chemistry, 2023
By a hydroamination-induced tandem annulation process, we herein report a new three-component reaction for room temperature construction of carbo-bridged polyheterocycles with exclusive diastereoselectivity, which features readily available feedstocks ...
Mao-Rui Wang, M. Zhang
semanticscholar   +1 more source

Construction of N-Polyheterocycles by N-Heterocyclic Carbene Catalysis via a Regioselective Intramolecular Radical Addition/Cyclization Cascade.

Organic Letters, 2022
N-Polyheterocycles are rapidly accessed by N-heterocyclic carbene (NHC) catalysis through regioselective sequential radical addition/cyclization in the absence of any metals or oxidants.
Qijing Zhang, Hao Lei, Cong Zhou, Chengming Wang   +3 more
semanticscholar   +1 more source

Thermoplastic polyheterocycles. I: Polyalkylene‐benzoxazoles

Polymer Engineering & Science, 1994
AbstractPolyalkylenebenzoxazoles of high molecular weight (inherent viscosity values from 0.76 to 2.95) were prepared from 4,6‐diaminoresorcinol dihydrochloride and aliphatic diacids in polyphosphoric acid by heating at 180 to 200°C for 3–5 h. Melting points of the polymers ranged from 148 to 423°C, depending on the length of the alkylene chain.
J. Preston, Y. Tropsha, J. W. Trexler
openaire   +1 more source