Synthesis, structure and catalytic properties of Pdii-based bimetallic complexes with ferrocenecarboxylic acid

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Synthesis, structure and catalytic properties of Pdii-based bimetallic complexes with ferrocenecarboxylic acid

Mendeleev Communications. 2022. Vol. 32. No. 5. P. 576–578.

Novel highly soluble palladium-based complexes with ferrocenecarboxylic acid of general formula [Pd(lut)2(FcCOO)2] (lut is 2,6-or 3,4-lutidines) were synthesized and structurally characterized by single-crystal X-ray diffraction. The catalytic oxidation of 1,2-diphenyl-acetylene with these complexes gave dibenzo[a,e]pentalene derivative along with other products.

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Singlet oxygen-mediated oxidation of sulfides with palladium(II) porphyrinates: The effect of partly conjugated peripheral substituents

Uskov F., Korobkov S., Birin K. P. et al., Journal of Photochemistry and Photobiology A: Chemistry 2026 Vol. 474 Article 116936

Oxidation of sulfides by singlet oxygen has been extensively studied, yet the structure-photoactivity relationship of these photosensitizers remains underinvestigated. In the present work the photocatalytic performance of a set of functionalized palladium(II) porphyrinates was comprehensively investigated in the photocatalytic oxidation of sulfides to reveal mutual influence of structural peculiarities onto the photosensitizing properties. The photophysical ...

Added: May 27, 2026

Rhodium Catalysts Based on Polyphenyl-Substituted Cp Ligands for Regioselective Annulation of Aryl Hydroxamates with Terminal Alkenes

Kharitonov V., Antonova A., Muratov D. et al., Organometallics 2025 Vol. 44 No. 19 P. 2301–2308

The readily available tetraphenylcyclopentadienyl rhodium complex [CpPh4RhCl2]2 effectively catalyzes the annulation of aryl hydroxamates with terminal alkenes to selectively form 4-substituted dihydroisoquinolones. The ligand volume has a crucial influence on the selectivity and efficiency of the reaction. The use of the overloaded pentaphenylcyclopentadienyl ligand CpPh5 or its less bulky pentabenzyl analog CpBn5 resulted in a dramatic decrease in ...

Added: February 20, 2026

Synthesis of Isoquinoline-Containing 5,6-Dicyano-2,1,3-Benzothiadiazoles: Unusual Heterocyclization into Dibenzo-1,6-Naphthyridine Framework

Gribanov P., Vorobyeva D., Loginov D. A. et al., Asian Journal of Organic Chemistry 2024 Vol. 13 No. 9 Article e202400226

An efficient access to novel families of cyano-containing polyheteroaromatic D- A molecules with extended π-conjugation, including dibenzo[c,h][1,6]naphthyridine derivatives, has been elaborated. The synthetic strategy is based on the sequence of metal-catalyzed annulation and cross-coupling reactions starting from available 4-ethynyl-5,6-difluoro-7-(pmethoxyphenyl)- 2,1,3-benzothiadiazole to get a new series of isoquinoline-linked BTD-based D- A compounds, which further undergo a selective cyanation ...

Added: February 20, 2025

Rhodium Catalysts Based on Phenyl Substituted Cp Ligands for Indole Synthesis via Oxidative Coupling of Acetanilides and Alkynes

Kharitonov V., Muratov D., Rodionov A. et al., Advanced Synthesis and Catalysis 2024 Vol. 366 No. 22 P. 4729–4736

Rhodium-catalyzed oxidative coupling of acetanilides and alkynes via C􀀀 H activation is the most powerful synthetic tool for producing the indole motif from commercially available precursors. However, this reaction usually requires large catalyst loadings (5 mol% of rhodium). In this study, a 1,2-diphenylcyclopentadienyl ligand-based catalyst was developed that works well at 1 mol% loading of ...

Added: February 20, 2025

(2-Fluoroallyl)palladium complexes as intermediates in Pd-catalyzed Tsuji-Trost 2-fluoroallylations: Synthesis and reactivity

Bobrova A., Novikov M., Mezentsev I. et al., Journal of Fluorine Chemistry 2020 Vol. 236 P. 109553

Added: September 24, 2024

Atom-economical synthesis of 1,2-bis(phosphine oxide)ethanes from calcium carbide with straightforward access to deuterium- and 13C-labeled bidentate phosphorus ligands and metal complexes

Lotsman K., Rodygin K., Skvortsova I. et al., Organic Chemistry Frontiers 2023 Vol. 10 No. 4 P. 1022–1033

Stable and easily detectable isotopic labels provide advanced opportunities in a wide range of chemical applications. Highly speciﬁc information can be retrieved upon analysis of isotopic label movement from one position to another. The incorporation of isotopic labels into organic molecules is in high demand; however, it may often be rather challenging. The introduction of ...

Added: February 14, 2024

A synthetic route to artificial chiral α-amino acids featuring a 3,4-dihydroisoquinolone core through a Rh(iii)-catalyzed functionalization of allyl groups in chiral Ni(ii) complexes

Arsenov M., Stoletova N., Smol'yakov A. et al., Organic and Biomolecular Chemistry 2023 Vol. 21 No. 46 P. 9143–9149

Currently, non-proteinogenic α-amino acids (α-AAs) have attracted increasing interest in bio- and medicinal chemistry. In this context, the first protocol for the asymmetric synthesis of artificial α-AAs featuring a 3,4-dihydroisoquinolone core with two stereogenic centers was successfully elaborated. A straightforward Rh(III)-catalysed C–H activation/annulation reaction of various aryl hydroxamates with a set of robust and readily ...

Added: January 18, 2024

Planar Chiral Rhodium Complex Based on the Tetrahydrofluorenyl Core for Enantioselective Catalysis

Kharitonov V., Evgeniya Podyacheva, Chusov D. et al., Organic Letters 2023 Vol. 25 No. 49 P. 8906–8911

A simple four-step route to a chiral tetrahydrofluorenyl rhodium catalyst from naturally occurring (−)-α-pinene was developed. Our approach does not use multistep and time-consuming procedures such as chiral HPLC or diastereomeric resolution. The key to success lies in the face-selective coordination of rhodium to the sterically hindered tetrahydrofluorenyl ligand, giving only one diastereomeric complex. This ...

Added: January 18, 2024

Tandem C–H Annulation Reaction of Benzaldehydes and Aminobenzoic Acids with Two Equivalents of Alkyne toward Isocoumarin-Conjugated Isoquinolinium Salts: A Family of Organic Luminophores

Arsenov M., Muratov D., Nelyubina Y. et al., Journal of Organic Chemistry 2023 Vol. 88 No. 13 P. 9360–9371

A novel rhodium-catalyzed tandem C–H annulation of commercially available benzaldehydes and aminobenzoic acids with 2 equiv of alkyne is reported for the construction of isocoumarin-conjugated isoquinolinium salts that demonstrate diverse outstanding photoactivity. Depending on the substituents in the isoquinolinium moiety, they display either highly efficient fluorescence (up to 99% of quantum yield) or strong fluorescence ...

Added: January 18, 2024

Borrowing hydrogen amination: Whether a catalyst is required?

Kozlov A., Afanasyev O., Journal of Catalysis 2022 Vol. 413 P. 1070–1076

Borrowing hydrogen amination (or borrowing hydrogen N-alkylation) is a powerful method for the formation of C-N bonds, which is widely used in academy and industry. In contrast to a common opinion, this process can be carried out without transition metal catalysts under basic conditions at a rather low temperature. Through the systematic experimental investigation, we ...

Added: September 6, 2022