Subtopic Deep Dive
Metal-Catalyzed Organophosphorus Reactions
Research Guide
What is Metal-Catalyzed Organophosphorus Reactions?
Metal-Catalyzed Organophosphorus Reactions encompass transition metal-catalyzed processes for C-P bond formation, cross-couplings, and phosphine ligand synthesis involving organophosphorus compounds.
These reactions enable efficient phosphorus incorporation into organic frameworks via catalysts like palladium or nickel. Key methods include C-H activation and multicomponent couplings. Over 10 papers from 2012-2024, including Haji (2016, 162 citations) on multicomponent routes to phosphonates, highlight advancements.
Why It Matters
Metal-catalyzed reactions provide selective C-P bond formation for synthesizing phosphonates used as enzyme inhibitors, herbicides, and catalysts (Rádai and Keglevich, 2018, 85 citations). They support agrochemicals, drug design, and materials by enabling complex phosphorus-containing heterocycles (Mayorquín-Torres et al., 2024, 36 citations). Applications extend to flame retardants and extractants via C(sp³)-H phosphorylation (Huang and Chen, 2021, 25 citations).
Key Research Challenges
Catalyst Selectivity
Achieving high regioselectivity in C-H phosphonylation remains difficult due to competing pathways. Huang and Chen (2021) note challenges in directing C(sp³)-H bonds with secondary phosphine oxides. New ligands are needed for broader substrate scope.
Scalable Synthesis
Transitioning lab-scale multicomponent reactions to industrial processes faces yield and purity issues. Haji (2016) reviews MCRs for phosphonates but highlights scalability limits. Purification of polyphosphonates adds complexity (Romanenko and Kukhar, 2012).
Ligand Development
Designing phosphine ligands stable under catalytic conditions is challenging for iterative synthesis. Romanenko and Kukhar (2013) discuss methylidynetrisphosphonates as building blocks needing better metal compatibility. Heterocyclic constraints limit options (Ordóñez et al., 2016).
Essential Papers
Multicomponent reactions: A simple and efficient route to heterocyclic phosphonates
Mohammad Haji · 2016 · Beilstein Journal of Organic Chemistry · 162 citations
Multicomponent reactions (MCRs) are one of the most important processes for the preparation of highly functionalized organic compounds in modern synthetic chemistry. As shown in this review, they p...
Synthesis and Reactions of α-Hydroxyphosphonates
Zita Rádai, György Keglevich · 2018 · Molecules · 85 citations
This review summarizes the main synthetic routes towards α-hydroxyphosphonates that are known as enzyme inhibitors, herbicides and antioxidants, moreover, a number of representatives express antiba...
Electrochemical Phosphorylation of Organic Molecules
Najoua Sbei, Guilherme M. Martins, Bahareh Shirinfar et al. · 2020 · The Chemical Record · 59 citations
Abstract Organophosphorus chemistry is a broad field with multi‐dimensional applications in research area of organic, biology, drug design and agrochemicals. Conventional methods have been adopted ...
Advances in radical phosphorylation from 2016 to 2021
Jie Liu, Han-Zhi Xiao, Qiang Fu et al. · 2021 · Chemical Synthesis · 45 citations
Chemical Synthesis is an open access peer-reviewed journal publishing original research involving all areas of the chemical sciences. The journal aims to be the premier resource of seminal and insi...
1-Amino-1,1-bisphosphonates. Fundamental syntheses and new developments
V. D. ROMANENKO, Valery P. Kukhar · 2012 · ARKIVOC · 41 citations
1-Amino-1,1-bisphosphonates have become increasingly important in different fields of chemistry, medicine and agriculture.The combination of the unique physical, chemical and biological properties ...
Synthetic Procedures Leading towards Aminobisphosphonates
Ewa Chmielewska, Paweł Kafarski · 2016 · Molecules · 37 citations
Growing interest in the biological activity of aminobisphosphonates has stimulated the development of methods for their synthesis. Although several general procedures were previously elaborated to ...
Synthetic Methods for Azaheterocyclic Phosphonates and Their Biological Activity: An Update 2004–2024
Martha C. Mayorquín‐Torres, Andreas Simoens, Eli Bonneure et al. · 2024 · Chemical Reviews · 36 citations
The increasing importance of azaheterocyclic phosphonates in the agrochemical, synthetic, and medicinal field has provoked an intense search in the development of synthetic routes for obtaining nov...
Reading Guide
Foundational Papers
Start with Romanenko and Kukhar (2012, 41 citations) for bisphosphonate syntheses and (2013, 20 citations) for methylidynetrisphosphonates as they establish core C-P architectures and metal compatibility.
Recent Advances
Study Huang and Chen (2021, 25 citations) for C(sp³)-H advances and Mayorquín-Torres et al. (2024, 36 citations) for azaheterocyclic phosphonates to capture method evolution.
Core Methods
Palladium/Ni-catalyzed cross-couplings, directed C-H phosphonylation with phosphine oxides, multicomponent Kabachnik-Fields reactions adapted for catalysis (Haji, 2016).
How PapersFlow Helps You Research Metal-Catalyzed Organophosphorus Reactions
Discover & Search
Research Agent uses searchPapers and exaSearch to find metal-catalyzed C-P papers, then citationGraph on Haji (2016) reveals 162-cited multicomponent works and downstream phosphonate syntheses.
Analyze & Verify
Analysis Agent applies readPaperContent to extract catalyst conditions from Huang and Chen (2021), verifies yields with runPythonAnalysis on reaction data tables, and uses GRADE grading for evidence strength in C(sp³)-H methods alongside CoVe for claim validation.
Synthesize & Write
Synthesis Agent detects gaps in scalable C-P catalysis, flags contradictions between radical vs. metal paths, while Writing Agent employs latexEditText, latexSyncCitations for Romanenko papers, and latexCompile for reaction scheme manuscripts.
Use Cases
"Analyze yield distributions in C(sp3)-H phosphorylation reactions from recent papers"
Research Agent → searchPapers('C(sp3)-H phosphorylation metal catalyzed') → Analysis Agent → readPaperContent(Huang 2021) → runPythonAnalysis(pandas plot of yields vs substrates) → matplotlib yield histogram output.
"Draft LaTeX review section on aminobisphosphonate catalysis with schemes"
Synthesis Agent → gap detection in aminophosphonates → Writing Agent → latexEditText('catalyst mechanisms') → latexSyncCitations(Romanenko 2012, Kafarski 2016) → latexCompile → PDF with embedded reaction diagrams.
"Find GitHub repos with code for metal-catalyzed phosphination simulations"
Research Agent → searchPapers('metal catalyzed C-P DFT') → Code Discovery → paperExtractUrls → paperFindGithubRepo → githubRepoInspect → verified DFT optimization scripts for Pd-catalyzed phosphonylation.
Automated Workflows
Deep Research workflow scans 50+ papers via searchPapers on 'metal-catalyzed phosphonates', structures reports with citationGraph clustering by catalyst type, and exports Mermaid reaction flowcharts. DeepScan applies 7-step CoVe to verify Huang (2021) C-H claims against experimental data. Theorizer generates hypotheses on Ni vs. Pd selectivity from Romanenko (2012-2013) bisphosphonate syntheses.
Frequently Asked Questions
What defines metal-catalyzed organophosphorus reactions?
Transition metal-catalyzed formation of C-P bonds, including cross-couplings and C-H activation for phosphonates and phosphines.
What are common methods?
Palladium-catalyzed couplings, nickel-mediated C-H phosphonylation, and multicomponent reactions (Haji, 2016); radical pathways complement but differ (Liu et al., 2021).
What are key papers?
Haji (2016, 162 citations) on MCR phosphonates; Rádai and Keglevich (2018, 85 citations) on α-hydroxyphosphonates; Romanenko and Kukhar (2012, 41 citations) on bisphosphonates.
What open problems exist?
Improving catalyst turnover for unactivated C-H bonds (Huang and Chen, 2021); scalable synthesis of heterocyclic phosphonates (Mayorquín-Torres et al., 2024); ligand stability in polyphosphonates.
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