Results 131 to 140 of about 83,738 (273)

Enantioselective Synthesis of Homoisoflavanones by Asymmetric Transfer Hydrogenation and Their Biological Evaluation for Antiangiogenic Activity

open access: green, 2019
Myunghoe Heo   +12 more
openalex   +2 more sources

Characterisation of the N‐Methyltransferase SgPsmC: Application in the Kinetic Resolution of Pyrroloindolines

open access: yesAngewandte Chemie International Edition, EarlyView.
The N‐methyltransferase SgPsmC was characterised and applied in the kinetic resolution (KR) of easily obtainable pyrroloindolines. Substitution at 3a‐position proved to be a principal determinant for the enzyme's enantioselectivity. While moving toward laboratory scale, the reaction was coupled with a methionine adenosyl transferase for in situ ...
Benjamin Panagiotis Chapple   +7 more
wiley   +1 more source

Enantioselective Catalysis for Agrochemicals: The Case History of the DUAL MAGNUM® Herbicide

open access: yesCHIMIA, 1997
The use of enantioselective catalytic methods for the technical preparation of chiral agrochemicals is illustrated by the case history of the herbicide (S)-merolachlor (trade name DUAL MAGNUM®).
Hans-Ulrich Blaser, Felix Spindler
doaj   +2 more sources

Asymmetric Synthesis and Applications of Chiral Organoselenium Compounds: A Review

open access: yesMolecules
The synthesis and application of organoselenium compounds have developed rapidly, and chiral organoselenium compounds have become an important intermediate in the field of medicine, materials, organic synthesis. The strategy of developing a green economy
Yanyu Jian   +3 more
doaj   +1 more source

Thiophene Derivatives as Versatile Precursors for (Hetero)Arene and Natural Product Synthesis

open access: yesAngewandte Chemie International Edition, EarlyView.
Hidden but Powerful: Thiophenes and their saturated analogues have been demonstrated to be versatile C4‐building blocks that can be rapidly applied to natural product synthesis and the construction of functionalized (hetero)arenes. This minireview aims to provide a concise overview of the strategies and implementations of these sulfur‐containing ...
Anna Keimer, Franz‐Lucas Haut
wiley   +1 more source

Mechanistic Characterisation of Bacterial Terpene Synthases from Chitinophagaceae Producing Marine‐Type Diterpenes

open access: yesAngewandte Chemie International Edition, EarlyView.
Six bacterial terpene synthases are reported, one of which produces instable chitinosphaerol, which is spontaneously transformed into several known natural products requiring structural revision. A second enzyme yields thermally labile neodolabella‐1(14),2,7‐triene, which upon heating shows sequential conversion into thermocyclenes A–C.
Heng Li   +4 more
wiley   +1 more source

Multiple Atropo Selectivity by κ2‐N,O‐Oxazoline Urea Ligands in Cobaltaelectro‐Catalyzed C─H Activations: Decoding Selectivity with Data Science Integration

open access: yesChemistryEurope
Enantioselective catalysis is one of the most prominent strategies in organic synthesis to access chiral bioactive compounds and advanced organic materials.
Philipp Boos   +8 more
doaj   +1 more source

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