Subtopic Deep Dive
Organometallic Ate Complexes
Research Guide
What is Organometallic Ate Complexes?
Organometallic ate complexes are hypervalent anionic organometallic species formed by addition of organometallic reagents to metal centers, enabling enhanced stability and selectivity in deprotonation and cross-coupling reactions.
These complexes feature multi-metal synergy, such as in Al-Li or B-based ate species, stabilizing reactive intermediates. Key studies include structural characterization via X-ray and NMR, with over 5,000 citations across foundational works like Mulvey et al. (2007, 546 citations). Applications span Suzuki-Miyaura couplings and directed ortho-metalations.
Why It Matters
Ate complexes facilitate milder deprotonation conditions for functionalized aromatics, as shown by Mulvey et al. (2007) using synergistic metalation. In cross-coupling, Lennox and Lloyd-Jones (2013, 1455 citations) highlight boron ate reagents improving Suzuki-Miyaura yields under functional group tolerant conditions. Naka et al. (2007, 192 citations) demonstrate aluminum ate bases enabling regio- and chemoselective alumination followed by C-C bond formation via Cu/Pd catalysis. These advances impact pharmaceutical synthesis by accessing sterically hindered motifs, exemplified by Aggarwal et al. (2014, 419 citations) enantiospecific sp2-sp3 couplings.
Key Research Challenges
Structural Characterization
Determining solid-state vs. solution structures of ate complexes remains challenging due to fluxional behavior. Mulvey et al. (2007) note X-ray crystallography reveals multi-metal cores, but NMR dynamics require advanced techniques. Naka et al. (2007) structurally defined an Al ate base via X-ray.
Reaction Selectivity Control
Achieving regioselectivity in deprotonative metalation avoids over-metalation. Mulvey et al. (2007) emphasize ate synergy for directed ortho-metalations. Lennox and Lloyd-Jones (2013) address base-assisted transmetalation selectivity in Suzuki couplings.
Synthetic Scalability
Scaling ate complex generation for cross-coupling precursors faces stability issues. Aggarwal et al. (2014) report enantiospecific couplings with boronic ester ates but note handling challenges. Miyaura (2002, 301 citations) details transmetalation mechanisms limiting large-scale applications.
Essential Papers
Selection of boron reagents for Suzuki–Miyaura coupling
Alastair J. J. Lennox, Guy C. Lloyd‐Jones · 2013 · Chemical Society Reviews · 1.5K citations
Suzuki-Miyaura (SM) cross-coupling is arguably the most widely-applied transition metal catalysed carbon-carbon bond forming reaction to date. Its success originates from a combination of exception...
Cyclometalation Using d-Block Transition Metals: Fundamental Aspects and Recent Trends
Martin Albrecht · 2009 · Chemical Reviews · 735 citations
European Research Council
Deprotonative Metalation Using Ate Compounds: Synergy, Synthesis, and Structure Building
Robert E. Mulvey, Florence Mongin, Masanobu Uchiyama et al. · 2007 · Angewandte Chemie International Edition · 546 citations
Abstract Historically, single‐metal organometallic species such as organolithium compounds have been the reagents of choice in synthetic organic chemistry for performing deprotonation reactions. Ov...
The Road Travelled: After Main‐Group Elements as Transition Metals
Catherine Weetman, Shigeyoshi Inoue · 2018 · ChemCatChem · 534 citations
Abstract Since the latter quarter of the twentieth century, main group chemistry has undergone significant advances. Power's timely review in 2010 highlighted the inherent differences between the l...
Enantiospecific sp2–sp3 coupling of secondary and tertiary boronic esters
Amadeu Bonet, Marcin Odachowski, Daniele Leonori et al. · 2014 · Nature Chemistry · 419 citations
Cross-coupling reaction of organoboron compounds via base-assisted transmetalation to palladium(II) complexes
Norio Miyaura · 2002 · Journal of Organometallic Chemistry · 301 citations
An Aluminum Ate Base: Its Design, Structure, Function, and Reaction Mechanism
Hiroshi Naka, Masanobu Uchiyama, Yotaro Matsumoto et al. · 2007 · Journal of the American Chemical Society · 192 citations
An aluminum ate base, i-Bu(3)Al(TMP)Li, has been designed and developed for regio- and chemoselective direct generation of functionalized aromatic aluminum compounds. Direct alumination followed by...
Reading Guide
Foundational Papers
Start with Mulvey et al. (2007, Angew. Chem.) for ate synergy in metalation; Naka et al. (2007, JACS) for Al ate structure; Lennox (2013, Chem. Soc. Rev.) for boron ates in Suzuki.
Recent Advances
Aggarwal et al. (2014, Nature Chem., 419 citations) on enantiospecific couplings; Inoue (2018, ChemCatChem, 534 citations) on main-group mimics.
Core Methods
Deprotonative metalation (Mulvey 2007), base-assisted transmetalation (Miyaura 2002), X-ray/NMR structure (Naka 2007), Suzuki-Miyaura optimization (Lennox 2013).
How PapersFlow Helps You Research Organometallic Ate Complexes
Discover & Search
PapersFlow's Research Agent uses searchPapers to query 'organometallic ate complexes deprotonation Mulvey' retrieving Mulvey et al. (2007, 546 citations), then citationGraph maps 500+ forward citations to recent trends, and findSimilarPapers uncovers related Al ate works like Naka et al. (2007). exaSearch scans 250M+ OpenAlex papers for 'boron ate Suzuki reagents' linking to Lennox (2013).
Analyze & Verify
Analysis Agent applies readPaperContent to extract mechanisms from Mulvey et al. (2007), verifies transmetalation claims via verifyResponse (CoVe) against Miyaura (2002), and uses runPythonAnalysis to plot JACS citation trends (NumPy/pandas) or GRADE evidence on selectivity data from Aggarwal (2014). Statistical verification confirms 1455 citations for Lennox (2013).
Synthesize & Write
Synthesis Agent detects gaps in ate complex scalability from DeepScan of 50+ papers, flags contradictions between solid/solution structures in Mulvey (2007) and Naka (2007), then Writing Agent uses latexEditText for reaction schemes, latexSyncCitations for 20+ refs, and latexCompile to generate publication-ready reviews with exportMermaid for metalation pathway diagrams.
Use Cases
"Extract reaction rate data from ate complex papers and plot vs. temperature."
Research Agent → searchPapers('aluminum ate base kinetics') → Analysis Agent → readPaperContent(Naka 2007) → runPythonAnalysis(pandas parse rates, matplotlib plot) → researcher gets CSV of kinetic parameters and publication graph.
"Write LaTeX review section on boron ate complexes in Suzuki coupling."
Synthesis Agent → gap detection(Lennox 2013 + Miyaura 2002) → Writing Agent → latexEditText(draft Suzuki mechanism) → latexSyncCitations(10 refs) → latexCompile(PDF) → researcher gets formatted section with diagrams.
"Find GitHub repos implementing ate complex simulations from papers."
Research Agent → searchPapers('organometallic ate DFT') → Code Discovery → paperExtractUrls → paperFindGithubRepo → githubRepoInspect → researcher gets 5 repos with DFT codes for ate structures.
Automated Workflows
Deep Research workflow scans 50+ papers on ate complexes via searchPapers → citationGraph → structured report ranking Mulvey (2007) synergies. DeepScan applies 7-step CoVe analysis to verify Naka (2007) mechanisms with GRADE scoring. Theorizer generates hypotheses on main-group ate catalysis from Inoue (2018) trends.
Frequently Asked Questions
What defines an organometallic ate complex?
Hypervalent anionic species from organometallic addition to metals, like i-Bu3Al(TMP)Li (Naka et al., 2007).
What methods characterize ate complexes?
X-ray crystallography for structures (Naka et al., 2007), NMR for dynamics (Mulvey et al., 2007), base-assisted transmetalation in couplings (Miyaura, 2002).
What are key papers on ate complexes?
Mulvey et al. (2007, 546 citations) on deprotonative metalation; Lennox (2013, 1455 citations) on boron reagents; Naka et al. (2007, 192 citations) on Al ate bases.
What open problems exist in ate complex research?
Scalability for industrial cross-couplings (Aggarwal 2014), predictive models for solution structures beyond X-ray, and extension to heavier main-group metals (Inoue 2018).
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