Reactions of acetylenes with noble-metal carbonyl halides. 12. Synthesis, reactivity, and solution structures by multinuclear NMR studies of .sigma.-alkenylplatinum(II) complexes. X-ray structure analysis of [cyclic][Pt{C(C6H5):C(H)C(:O)Me}(CO)Cl] and [Pt{C(C6H5):C(H)C(:NC6H5)Me}(PPh3)2Cl]

Allevi, Claudio; Garlaschelli, Luigi; Malatesta, Maria Carlotta

doi:10.1021/om00119a005

Cited by 18 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Malatesta, Ganazzoli, and co-workers found that [H 3 O] 2 [Pt(CO) 2 ] 3n reacts with PhCCCOMe in the presence of HCl to generate platinafuran 237 (Scheme 78). 276 CH activation of α,β-unsaturated ketones, esters, or aldehydes is another convenient means for the construction of metallafurans. 277−286 This method utilizes the coordination ability of the CO group, which facilitates the activation of an sp 2 β-CH bond to construct a relatively stable fivemembered ring.…”

Section: Synthesis Of Heterometallaaromaticsmentioning

confidence: 99%

“…Platinafuran 237 reacted with aromatic primary amines to afford platinapyrroles 676 and 677 in high yields. 276 Normally, an acidic catalyst is needed for the reaction of a ketone with aromatic amines, and in this case, the platinum plays a similar role as an acid. This provides another route for the preparation of metallapyrroles.…”

Section: Reactivities Of Metallabenzynesmentioning

confidence: 99%

See 1 more Smart Citation

Metallaaromatic Chemistry: History and Development

2020

View full text Add to dashboard Cite

Since the prediction of the existence of metallabenzenes in 1979, metallaaromatic chemistry has developed rapidly, due to its importance in both experimental and theoretical fields. Now six major types of metallaromatic compounds, metallabenzenes, metallabenzynes, heterometallaaromatics, dianion metalloles, metallapentalenes and metallapentalynes (also termed carbolongs), and spiro metalloles, have been reported and extensively studied. Their parent organic analogues may be aromatic, non-aromatic, or even anti-aromatic. These unique systems not only enrich the large family of aromatics, but they also broaden our understanding and extend the concept of aromaticity. This review provides a comprehensive overview of metallaaromatic chemistry. We have focused on not only the six major classes of metallaaromatics, including the main-group-metal-based metallaaromatics, but also other types, such as metallacyclobutadienes and metallacyclopropenes. The structures, synthetic methods, and reactivities are described, their applications are covered, and the challenges and future prospects of the area are discussed. The criteria commonly used to judge the aromaticity of metallaaromatics are presented.

show abstract

Section: Synthesis Of Heterometallaaromaticsmentioning

confidence: 99%

Section: Reactivities Of Metallabenzynesmentioning

confidence: 99%

Metallaaromatic Chemistry: History and Development

2020

View full text Add to dashboard Cite

show abstract

“…The CCCO moieties are alkynyl ketones (RCCCOR′), alkynyl esters (RCCCOOR′), alkynyl diesters (ROOCCCCOOR′), etc. The metal atoms of the metal compounds such as Mn, Re, Fe, Ru, Os, Rh, Ir, Ni, Pd and Pt are used for these cyclization reactions 84–113. In the CCCO moiety, the metal is coordinated at two coordination sites: the alkynyl π‐electron bond and the carbonyl oxygen atom.…”

Section: Synthesis Of Carbonyl Group‐containing Organometallic Intrammentioning

confidence: 99%

“…The example of the reaction of the alkynyl ketones with platinium carbonyl chloride also forms a similar metallacycle compound, as shown in equation (19) 112 …”

Section: Synthesis Of Carbonyl Group‐containing Organometallic Intrammentioning

confidence: 99%

Carbonyl group‐containing organometallic intramolecular‐coordination five‐membered ring compounds

Omae¹

2010

Applied Organom Chemis

View full text Add to dashboard Cite

Carbonyl group-containing organometallic intramolecular-coordination five-membered ring compounds are easily synthesized by the following five reaction methods: (1) cyclometalation, especially, orthometalation reactions; (2) the reactions of the moieties of an unsaturated carbon-carbon bond attached to a carbonyl group (C C-CO, C C-CO); (3) the reactions of an unsaturated carbon-carbon bond with carbon monoxide (C C and CO, C C and CO); (4) carbonylative ring expansion reactions; and (5) others. These compounds are very easily and regio-specifically synthesized with many kinds of metal compounds, including both transition metals and main group metals. Many of such the reactions are easily applied to organic syntheses.

show abstract

“…Treatment of complex 55 (generated in situ by the hydrolysis of cis-Pt(CO) 2 Cl 2 ) with PhC:CCOMe could give a coordinated alkynone compound. Then it was attacked by HCl to obtain a-metallafuran 56 as an orange solid in 32 % yield (Scheme 13) [32]. The distances of Pt-C and Pt-O for 56 were 2.017(11) and 2.048(7) Å respectively.…”

Section: Reactions Of Alkyne With Metal Acyl Complexesmentioning

confidence: 99%