Results 151 to 160 of about 17,768 (339)
ChemCatChem, EarlyView.This study explores the impact of silane‐type electron donors on Ziegler–Natta (ZN) catalysts in ethylene polymerization and ethylene/α‐olefin copolymerization. Whereas electron donors reduce catalyst activity and comonomer incorporation, they enhance polymer molecular weight and uniformity. These insights advance the understanding of ZN catalysis with
Satayu Borsap +3 more
wiley +1 more source
A domino reaction for the synthesis of pyrrolo[2,1-a]isoquinolines from 2-aryl-pyrrolidines and alkynes promoted by a four-component catalytic system under aerobic conditions. [PDF]
RSC Adv, 2023 Luo Z, Hu H, Wang C, Yang Z, Wang Y.
europepmc +1 more source
Visible‐Light Photocatalysis for Sustainable Chromene Synthesis and Functionalization
Chemistry – A European Journal, EarlyView.Visible‐light photocatalysis provides sustainable and versatile methods for the synthesis and functionalization of chromene derivatives. This review compiles cutting‐edge methodologies, highlighting transformations such as multicomponent reactions, cross‐dehydrogenative coupling reactions, diverse cascade processes, and Giese‐type additions.
Paula Pérez‐Ramos +4 more
wiley +1 more source
The Glow-discharge Reactions of Pyrrole, Pyrrolidine, and Butylamine [PDF]
, 1977 S. KIKKAWA +2 more
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Chemistry – A European Journal, EarlyView.A synthetic route is established to high silica zeolite ERS‐7 templated by a dimethylpyrrolidinium organic structure directing agent (OSDA) in the presence of a cationic polymer, both formed in situ from organic precursors. The polymer enables the cyclization that gives the OSDA and inhibits the crystallization of the competing zeolite mordenite ...
Magdalena M. Lozinska +8 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Fused nitrogen‐bridgehead N,O‐acetals receive specific emphasis as pivotal scaffolds due to their significant role in the bioactivity of medicinally relevant molecules. Significant approaches have been reported on their role as key synthetic building blocks/motifs in the construction of complex organic molecules and their utility as chiral auxiliaries ...
Alexis D. Kouvelas +2 more
wiley +1 more source
Shihunine : A New Phthalide-Pyrrolidine Alkaloid
, 1964 Yasuo Inubushi +3 more
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Chemistry – A European Journal, EarlyView.2‐(Trifluoromethyl)‐1‐azabicyclo[1.1.0]butanes, available by diastereoselective cyclopropanation of 2‐(trifluoromethyl)‐2H‐azirines, can be successfully involved in strain‐release ring‐opening processes, as illustrated by their reaction with benzyl chloroformate, trifluoroacetic anhydride or palladium‐catalyzed hydrogenolysis.
Anaïs Scuiller +7 more
wiley +1 more source
Synthesis of Pyrrolidine Ring of Nicotine from Several C14-labeled Metabolites by Nicotiana rustica
, 1962 Pei-Hsing Lin Wu +2 more
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