Enantioselective synthesis of tetranuclear quadruple helicates.

Inorg Chem

Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, CH 1211 Geneva 4, Switzerland.

Published: August 2012

Quadruple helical structures are assembled around a tetranuclear cubane structure using four chiral tridentate ligands and two ligands coordinating diagonally across a face. Stereoselectivity in the complex formation is observed.

Download full-text PDF

Source
http://dx.doi.org/10.1021/ic3014943DOI Listing

Publication Analysis

Top Keywords

enantioselective synthesis
4
synthesis tetranuclear
4
tetranuclear quadruple
4
quadruple helicates
4
helicates quadruple
4
quadruple helical
4
helical structures
4
structures assembled
4
assembled tetranuclear
4
tetranuclear cubane
4

Similar Publications

Catalytic Asymmetric Dehydrogenative Si-H/X-H Coupling toward Si-Stereogenic Silanes.

Acc Chem Res

January 2025

Shenzhen Grubbs Institute and Department of Chemistry, Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.

ConspectusChiral organosilicon compounds bearing a Si-stereogenic center have attracted increasing attention in various scientific communities and appear to be a topic of high current relevance in modern organic chemistry, given their versatile utility as chiral building blocks, chiral reagents, chiral auxiliaries, and chiral catalysts. Historically, access to these non-natural Si-stereogenic silanes mainly relies on resolution, whereas their asymmetric synthetic methods dramatically lagged compared to their carbon counterparts. Over the past two decades, transition-metal-catalyzed desymmetrization of prochiral organosilanes has emerged as an effective tool for the synthesis of enantioenriched Si-stereogenic silanes.

View Article and Find Full Text PDF

A novel class of bis-8-aryl-isoquinoline () bis-alkylamine iron complexes, Fe()(OTf) and Fe()(OTf) ( = dipyrrolidinyl or = ,'-dimethylcyclohexyl-diamine), for asymmetric oxidation reactions is reported. The scalable divergent synthesis of 8-aryl-3-formylisoquinolines (), the key intermediates in preparing these ligands, enables precise structural and electronic tuning around the metal center. The enantioselective epoxidation and hydroxy carbonylation of conjugated alkenes, mediated by the Fe() catalyst with HO as the oxidant, demonstrates the potential of these redox Fe[N] catalysts in inducing face selection in oxygen transfer transformations.

View Article and Find Full Text PDF

The remarkable efficiency with which enzymes catalyze small-molecule reactions has driven their widespread application in organic chemistry. Here, we employ automated fast-flow solid-phase synthesis to access catalytically active full-length enzymes without restrictions on the number and structure of noncanonical amino acids incorporated. We demonstrate the total syntheses of iron-dependent myoglobin (BsMb) and sperm whale myoglobin (SwMb).

View Article and Find Full Text PDF

Bioinformatics and Computationally Supported Redesign of Aspartase for β-Alanine Synthesis by Acrylic Acid Hydroamination.

ACS Catal

January 2025

Chemical Biotechnology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, 9747 AG Groningen, the Netherlands.

Aspartate ammonia lyases catalyze the reversible amination of fumarate to l-aspartate. Recent studies demonstrate that the thermostable enzyme from sp. YM55-1 (AspB) can be engineered for the enantioselective production of substituted β-amino acids.

View Article and Find Full Text PDF

Aldolases, especially 2-deoxyribose-5-phosphate aldolase (DERA) enzymes, have been widely employed to access key chiral precursors for various active pharmaceutical ingredients (APIs). This has been enabled by expanding their substrate scope toward non-natural acceptors and donors via protein engineering. In this study, we endeavored to broaden the acceptor substrate scope of DERA from sp.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!