Results 111 to 120 of about 61,381 (342)

Advances in Metal‐Free Transamidation: A Sustainable Approach to Amide Bond Formation

open access: yesChemistry – An Asian Journal, EarlyView.
This review highlights the recent developments of transamidation reactions under metal‐free reaction conditions. Various amines including weak nucleophilic amines such as aromatic amines have been used to achieve the transamidation reactions under mild and relatively green reaction conditions. Abstract The amide functionalities are a crucial functional
Niharan Sivaraj   +2 more
wiley   +1 more source

Total Synthesis of Arylnaphthalene Lignans through a Photochemical Key Step

open access: yesEuropean Journal of Organic Chemistry, Volume 26, Issue 1, January 2, 2023., 2023
The total syntheses of arylnaphthalene lignans (ANL) Vitrofolal E (1), Noralashinol C (2), and Ternifoliuslignan E (3) are described. These natural products have in common a missing substituent in 2‐position of the naphthalene skeleton (2H‐ANL). The key step of the syntheses is the Photo‐Dehydro‐Diels‐Alder (PDDA) reaction between arylalkyne moieties ...
Pablo Wessig   +4 more
wiley   +1 more source

GC-EI-MS identification data of neutral sugars of polysaccharides extracted from Zizyphus lotus fruit

open access: yesData in Brief, 2018
Gas chromatography coupled to mass spectrometer (GC–MS) was used to identify and to quantify neutral sugars that constitute the water soluble polysaccharides from Zizyphus lotus fruit.
Khaoula Mkadmini Hammi   +5 more
doaj  

Development of Multipurpose Supported Asymmetric Salen Catalysts by Cu(0)‐Mediated Reversible Deactivation Radical Copolymerization

open access: yesChemCatChem, EarlyView.
The challenge of recycling heterogeneous catalysts and reusing them in different reactions was addressed. To this end, salen complexes were anchored on methacrylate insoluble polymers obtained using the Cu(0)‐mediated RDRP method. Their reactivity and recyclability were analyzed in asymmetric ring opening and dynamic kinetic resolution of epoxides ...
Rafaela Bechara   +8 more
wiley   +1 more source

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