ChemInform Abstract: 3‐Phosphorylation of 2‐Propylindazole.

Толмачев, А. А.; Semenova, M. G.; Sviridon, A. I.; Yurchenko, A. A.; Feshchenko, N. G.

doi:10.1002/chin.199437181

Cited by 2 publications

(3 citation statements)

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“…dpim, PPh 2 py, [RuCl 2 (η 6 -arene)(κ 1 P -dpim)] (arene = p -cymene ( 1b ), benzene ( 1c )), and [RuCl 2 (η 6 - p -cymene)(κ 1 P -PPh 2 py)] ( 1d ) were prepared according to previous procedures. [RuH 2 (η 6 - p -cymene)(κ 1 - P -PPh 3 )] ( 2a ) was prepared by a procedure similar to that described for 2b – d .…”

Section: Methodsmentioning

confidence: 99%

Experimental and Computational Evidence for the Participation of Nonclassical Dihydrogen Species in Proton Transfer Processes on Ru–Arene Complexes with Uncoordinated N Centers. Efficient Catalytic Deuterium Labeling of H₂ with CD₃OD

et al. 2012

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The protonation with Brønsted acids HB (HBF 4 and CF 3 CO 2 H) of [RuH 2 (arene)(PPh 2 Het)] derivatives (PPh 2 Het = dpim, Het = 2-N-methylimidazolyl; PPh 2 Het = PPh 2 py, Het = 2-pyridyl) that contain uncoordinated N atoms has been analyzed experimentally by NMR spectroscopy and through computational studies. Initially, at low temperature, the uncoordinated N atoms of the phosphine are protonated and a proton−hydride exchange is observed by 1 H NMR spectroscopy. The proton transfer leads to the corresponding cationic trihydride intermediates, which exhibit a dual character of classical and nonclassical hydrides, with the nonclassical species being more stable, especially when Het = 2-pyridyl. In fact, the release of H 2 and the formation of the respective monohydride complexes [RuH(arene)(κ 2 -N,P-PPh 2 Het)]B was observed at room temperature. The participation of the uncoordinated N center in the proton transfer process in the stabilization of RuH(H 2 ) + with respect to RuH 3 + species and in the hydride−dihydrogen exchange (cis effect) are discussed. Calculations on the complex [RuH 3 (p-cymene)(PPh 3 )] + have also been carried out for the sake of comparison. A dual character was also found, but in this case the classical species is more stable. H/D exchange of the hydride ligands of the dihydride complexes, using CD 3 OD as the deuterium source, has been studied. The very rapid deuterium labeling of H 2 , catalyzed by the aforementioned dihydrides, has been observed. The known compound [RuH 2 (p-cymene)(PPh 3 )] is also active in this labeling process, and the possible mechanism for both the H/D exchange and the deuterium labeling of H 2 is discussed in light of theoretical studies.

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Section: Methodsmentioning

confidence: 99%

Experimental and Computational Evidence for the Participation of Nonclassical Dihydrogen Species in Proton Transfer Processes on Ru–Arene Complexes with Uncoordinated N Centers. Efficient Catalytic Deuterium Labeling of H₂ with CD₃OD

et al. 2012

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“…Many examples of phosphanylation with chlorodiphenylphosphane are described in the literature [9][10][11][12]. In this case, the reaction is also proceeding via N-phosphanyl azolium salts and carbenes, but in most cases they are not observed.…”

Section: Introductionmentioning

confidence: 97%

“…The second method includes the interaction of phosphanylhalides with heterocycles containing a pyridine‐type nitrogen atom in the presence of organic bases, such as triethylamine (Scheme ). Many examples of phosphanylation with chlorodiphenylphosphane are described in the literature . In this case, the reaction is also proceeding via N‐phosphanyl azolium salts and carbenes, but in most cases they are not observed.…”

Section: Introductionmentioning

confidence: 99%

Investigation of N‐ and C‐Phosphanylation of [1,2,4]Triazolo[4,3‐a]pyridines

Marchenko

Koidan

Kyrylchuk

et al. 2015

Heteroatom Chemistry

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ChemInform Abstract: 3‐Phosphorylation of 2‐Propylindazole.

Cited by 2 publications

References 0 publications

Experimental and Computational Evidence for the Participation of Nonclassical Dihydrogen Species in Proton Transfer Processes on Ru–Arene Complexes with Uncoordinated N Centers. Efficient Catalytic Deuterium Labeling of H₂ with CD₃OD

Experimental and Computational Evidence for the Participation of Nonclassical Dihydrogen Species in Proton Transfer Processes on Ru–Arene Complexes with Uncoordinated N Centers. Efficient Catalytic Deuterium Labeling of H₂ with CD₃OD

Investigation of N‐ and C‐Phosphanylation of [1,2,4]Triazolo[4,3‐a]pyridines

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ChemInform Abstract: 3‐Phosphorylation of 2‐Propylindazole.

Cited by 2 publications

References 0 publications

Experimental and Computational Evidence for the Participation of Nonclassical Dihydrogen Species in Proton Transfer Processes on Ru–Arene Complexes with Uncoordinated N Centers. Efficient Catalytic Deuterium Labeling of H2 with CD3OD

Experimental and Computational Evidence for the Participation of Nonclassical Dihydrogen Species in Proton Transfer Processes on Ru–Arene Complexes with Uncoordinated N Centers. Efficient Catalytic Deuterium Labeling of H2 with CD3OD

Investigation of N‐ and C‐Phosphanylation of [1,2,4]Triazolo[4,3‐a]pyridines

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Experimental and Computational Evidence for the Participation of Nonclassical Dihydrogen Species in Proton Transfer Processes on Ru–Arene Complexes with Uncoordinated N Centers. Efficient Catalytic Deuterium Labeling of H₂ with CD₃OD

Experimental and Computational Evidence for the Participation of Nonclassical Dihydrogen Species in Proton Transfer Processes on Ru–Arene Complexes with Uncoordinated N Centers. Efficient Catalytic Deuterium Labeling of H₂ with CD₃OD