Results 51 to 60 of about 22,717 (244)
, 2016 An efficient and convenient synthesis of 2-amino-6-aryl-4-methylsulfanylnicotinonitriles (2), 2-amino-6-aryl-4-substituted-aminonicotinonitriles (4), and 2-amino-6-aryl-4-substituted-aminopyridines (6) has been delineated and illustrated through base ...
Farhanullah (3208797) +3 more
core +1 more source
Red-Light Triggered Photouncaging from Dicyanomethylene-4H-pyran Phototrigger in Aqueous Solution: Applied as a Single Component Nano-Drug Delivery System for Cancer Therapy [PDF]
, 2021 The development of Photoremovable protecting groups (PRPGs), which can be activated in the ʽphototherapeutic windowʼ for biological applications, is highly challenging.
Mahitosh, Mondal +6 more
core +2 more sources
Acta Crystallographica Section E: Crystallographic Communications, 2019 The title compound, C11H8O5·(CH3)2SO, is a new coumarin derivative. The asymmetric unit contains two coumarin molecules (A and B) and two dimethylsulfoxide solvent molecules (A and B).
S. Syed Abuthahir +4 more
doaj +1 more source
, 2021 The diastereoselective domino-Knoevenagel-IMHDA reactions of 5,6-dihydro-2H-pyran derivatives containing an o-formylaryl amine or ether moiety were performed with active methylene reagents. In the spiro heterocyclic products representing a novel skeleton,
Sándor Balázs Király +11 more
core +1 more source
, 2019 An efficient stereoselective three-component reaction for the synthesis of functionalized spiro[4H-pyran-3,3′-oxindole] derivatives was realized through an organocatalyzed domino Knoevenagel/Michael/cyclization reaction using a cinchonidine-derived ...
Hadi D. Arman (1348743) +3 more
core +1 more source
Theoretical study on the Diels-Alder reaction of bromo-substituted 2H-pyrane-2-ones and some substituent vinyls [PDF]
Journal of the Serbian Chemical Society, 2015 A DFT study of the reactivity, regio- and stereoselectivity of Diels-Alder reaction between 3-bromo, 5-bromo, and 3,5-dibromo-2(H)-pyran-2-ones and some weakly activated and unactivated alkenes has been carried out using density functional ...
Haghdadi Mina, Amani Hamed, Nab Nasim
doaj +1 more source
Crystals, 2012 Bis-fused donors composed of (thio)pyran-4-ylidene-1,3-dithiole and tetraselenafulvalene (1a, 2a) and their bis(methylthio) derivatives (1b, 2b) were synthesized.
Yohji Misaki +4 more
doaj +1 more source
Animal Research and One Health, EarlyView.Dietary A. truncatum leaf extract is absorbed and improves laying performance in aged hens by enhancing systemic antioxidant capacity and modulating the gut microbiota. ABSTRACT The demand for natural feed additives is considerably increasing in the antibiotic‐free feed era.
Kailong Qin +6 more
wiley +1 more source
Accelerating green heterocyclic synthesis: Convergence of AI, automation, and sustainable chemistry
Bulletin of the Korean Chemical Society, EarlyView.Green heterocyclic synthesis and data‐driven tools such as AI, high‐throughput experimentation, continuous flow, and self‐driving laboratories have developed largely in parallel. This review connects them and asks how green metrics such as E‐factor and PMI might serve as explicit optimization targets rather than post‐hoc measures, toward sustainable ...
Noor Aisyah Ahmad Shah +8 more
wiley +1 more source
Bulletin of the Korean Chemical Society, EarlyView.Abstract DNA‐encoded libraries (DELs) enable large‐scale screening for hit identification, but accessing sp3‐rich, three‐dimensional chemotypes beyond flat, aromatic scaffolds remains challenging. Multicomponent reactions (MCRs) assemble such complexity from simple building blocks in a single step, and reaction‐engineering strategies have extended on ...
Jimin Moon +3 more
wiley +1 more source