Titanium Imido Complexes via Displacement of -SiMe3 and C-H Bond Activation in a Ti(III) Amido Complex, Promoted by a Cyclic (Alkyl)(Amino) Carbene (cAAC).
Sign Up to like & getrecommendations! Published in 2017 at "European journal of inorganic chemistry"
DOI: 10.1002/ejic.201700295
Abstract: A strong σ-donating cyclic (alkyl)(amino) carbene (cAAC) triggers rearrangement of the silyl(aryl) amido ligand -N(SiMe3)Dipp (Dipp = 2,6-diisopropylphenyl) in the coordination sphere of titanium(III) to afford a novel zwitterionic titanium imido complex with a TiCH2SiMe2[cAAC]… read more here.
Keywords: imido; amino carbene; alkyl amino; titanium ... See more keywords
Synthesis and thermal reactivity of a Me 3 N-stabilized cyclic (alkyl)(amino)oxophosphonium ion
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DOI: 10.1016/j.ica.2016.07.046
Abstract: Abstract Reaction of cyclic (alkyl)(amino)phosphorous chloride 3 with GaCl3 followed by the treatment with Me3NO afforded trimethylamine-stabilized oxophosphonium ion 5, which was fully characterized by NMR spectroscopy and X-ray diffraction analysis. Computational study using DFT… read more here.
Keywords: oxophosphonium ion; cyclic alkyl; oxophosphonium; alkyl amino ... See more keywords
Synthesis, structures and photoluminescence properties of silver complexes of cyclic (alkyl)(amino)carbenes ☆
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2017.02.045
Abstract: Abstract Silver complexes of cyclic (alkyl)(amino)carbenes (CAACs), (RL)nAgX (n = 1, X = Cl, Br, I; n = 2, X = OTf; R = Me2, Et2, or adamantyl) are accessible in high yields by reacting free carbenes with silver salts. The smaller carbene ligand Me2L… read more here.
Keywords: complexes cyclic; silver complexes; amino carbenes; alkyl amino ... See more keywords
Cyclic (Alkyl)- and (Aryl)-(amino)carbene Coinage Metal Complexes and Their Applications.
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DOI: 10.1021/acs.chemrev.0c00043
Abstract: Cyclic (alkyl)- and (aryl)-(amino)carbenes (CAACs and CAArCs) are stronger σ-donors and π-acceptors than imidazol-2-ylidenes and imidazolidin-2-ylidenes, the well-known N-heterocyclic carbenes (NHCs). Consequently, they form strong bonds with coinage metals and stabilize both low and high… read more here.
Keywords: aryl amino; coinage metal; coinage; alkyl aryl ... See more keywords
Hafnium(II) Complexes with Cyclic (Alkyl)(amino)carbene Ligation
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DOI: 10.1021/acs.organomet.8b00688
Abstract: The formal hafnium(II) complexes with cyclic (alkyl)(amino)carbene (cAAC) ligation [(Me2-cAAC)2HfCl2] and [(Me2-cAAC)2Hf(CH2Ph)2] (Me2-cAAC = 1-(2,6-diisopropylphenyl)-3,3,5,5-tetramethylpyrrolidine-2-ylidene) have been synthesized and structurally characterized. read more here.
Keywords: amino carbene; complexes cyclic; hafnium complexes; alkyl amino ... See more keywords
Reactivity of a Two-Coordinate Cobalt(0) Cyclic (Alkyl)(amino)carbene Complex
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DOI: 10.1021/acs.organomet.9b00875
Abstract: Cyclic (alkyl)(amino)carbenes (cAACs) are the merely known ligand set being capable of stabilizing two-coordinate cobalt(0) complexes. While two complexes of the type [(R2-cAAC)2Co] [R2-cAAC = 5,5-... read more here.
Keywords: coordinate cobalt; two coordinate; reactivity two; alkyl amino ... See more keywords
A Donor-Acceptor Cyclopropane by Intramolecular C(sp3)-H Activation at a Cyclic(alkyl)(amino)carbene Center and Its Fascinating Ring-Opening Chemistry.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c01072
Abstract: Virtually irreversible intramolecular C-H activations are deleterious for aza-carbenes. A picolyl-tethered cyclic(alkyl)(amino)carbene (CAAC) isomerizes into a donor-acceptor cyclopropane in this manner but restores the CAAC status by retro-C-H activation in the presence of trapping agents… read more here.
Keywords: alkyl amino; amino carbene; chemistry; cyclic alkyl ... See more keywords
Cyclic (Alkyl)(amino)carbenes (CAACs) in Ruthenium Olefin Metathesis
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DOI: 10.1021/acscatal.0c05508
Abstract: Discovered in 2005, cyclic (alkyl)(amino)carbenes (CAACs) have led to numerous discoveries in the field of ruthenium olefin metathesis, until then largely dominated by the well-known N-heterocyclic... read more here.
Keywords: amino carbenes; carbenes caacs; olefin metathesis; ruthenium olefin ... See more keywords
Mesomeric Acceleration Counters Slow Initiation of Ruthenium–CAAC Catalysts for Olefin Metathesis (CAAC = Cyclic (Alkyl)(Amino) Carbene)
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DOI: 10.1021/acscatal.2c03828
Abstract: Ruthenium catalysts bearing cyclic (alkyl)(amino)carbene (CAAC) ligands can attain very high productivities in olefin metathesis, owing to their resistance to unimolecular decomposition. Because the propagating methylidene species RuCl2(CAAC)(=CH2) is extremely susceptible to bimolecular decomposition, however,… read more here.
Keywords: alkyl amino; acceleration; caac; cyclic alkyl ... See more keywords
Synthesis and Catalytic Properties of Sulfur-Chelated Ruthenium Benzylidenes Bearing a Cyclic (Alkyl)(amino)carbene Ligand
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DOI: 10.1021/acscatal.8b02122
Abstract: Sulfur-chelated ruthenium olefin metathesis precatalysts that possess cyclic (alkyl)(amino)carbenes (CAAC) can benefit from the synergetic effect of both ligands. Changing the steric bulk of the CAAC ligand by using different substitution patterns was shown to… read more here.
Keywords: metathesis; chelated ruthenium; alkyl amino; sulfur chelated ... See more keywords
Cyclic (Alkyl)(amino)carbene Ligand-Promoted Nitro Deoxygenative Hydroboration with Chromium Catalysis: Scope, Mechanism, and Applications.
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DOI: 10.1021/jacs.0c12318
Abstract: Transition metal catalysis that utilizes N-heterocyclic carbenes as noninnocent ligands in promoting transformations has not been well studied. We report here a cyclic (alkyl)(amino)carbene (CAAC) ligand-promoted nitro deoxygenative hydroboration with cost-effective chromium catalysis. Using 1… read more here.
Keywords: amino carbene; hydroboration; catalysis; deoxygenative hydroboration ... See more keywords