Výsledky vyhledávání - "Ivan A. Portnyagin"

In search for a pentacoordinated monoorgano stannyl cation

Autor: Victor N. Khrustalev, Rinat R. Aysin, Mikhail S. Nechaev, Ivan A. Portnyagin, Oleg V. Chernov, Valery V. Lunin

Publikováno v: Journal of Organometallic Chemistry. 695:365-369

Alkylation of Sn(OCH2CH2NMe2)2 (1) by MeI or MeOTf leads to a mixture of quaternary ammonium salts by alkylation of the NMe2 moiety. Reaction of Sn(acac)2 (2) with MeOTf gives unexpected redistribution product Sn(acac)OTf (3), which is a rare example

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3d8499c9a9044a5f6dacadf30305d29
https://doi.org/10.1016/j.jorganchem.2009.10.039

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Germylene and stannylene (Me2NCH2CH2O)2E as strong σ-donor ligands for transition metal complexes [ML(CO)n] (E=Ge, Sn; M=Cr, Mo, W, n=4 or 5; M=Fe, n=4). Synthesis, spectroscopic and theoretical study

Autor: Ivan A. Portnyagin, Mikhail S. Nechaev

Publikováno v: Journal of Organometallic Chemistry. 694:3149-3153

A series of germylene and stannylene (Me 2 NCH 2 CH 2 O) 2 E (E = Ge, 1 ; E = Sn, 2 ) complexes of group 6 metals and iron carbonyls L·M(CO) n (M = Cr, Mo, W, n = 5 ( 3–8) , n = 4 ( 9 , 10 ); M = Fe, n = 4 ( 11 , 12 )) were prepared. These complex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9511a0bd52e7ba472936c77a7cd2a108
https://doi.org/10.1016/j.jorganchem.2009.05.017

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Heteroleptic tin (II) dialkoxides stabilized by intramolecular coordination Sn(OCH2CH2NMe2)(OR) (R=Me, Et, iPr, tBu, Ph). Synthesis, structure and catalytic activity in polyurethane synthesis

Autor: Ivan A. Portnyagin, Victor N. Khrustalev, Mikhail S. Nechaev, Oleg V. Chernov, Aleksandr Yu. Smirnov

Publikováno v: Journal of Organometallic Chemistry. 694:3184-3189

A straightforward method of synthesis of heteroleptic tin (II) alkoxides stabilized by one intramolecular coordination bond was developed. Addition of one equivalent of dimethylamino ethanol to diamide Sn(N(SiMe 3 ) 2 ) 2 ( 5 ) yields alkoxy-amido de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9eaebeb1cc141bb7a1c9252f7397b4f0
https://doi.org/10.1016/j.jorganchem.2009.05.014

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Six- and seven-membered ring carbenes: Rational synthesis of amidinium salts, generation of carbenes, synthesis of Ag(I) and Cu(I) complexes

Autor: Mikhail S. Nechaev, Ivan A. Portnyagin, Viacheslav V. Shuntikov, Eugene L. Kolychev, Victor N. Khrustalev

Publikováno v: Journal of Organometallic Chemistry. 694:2454-2462

Reactions of neat 1,3- and 1,4-dibromides with N,N′-diarylformamidines in the presence of diisopropylethylamine (DIPEA) afford corresponding amidinium salts in high yields (>80%). Six- and seven-membered ring amidinium salts bearing bulky Mes (2,4,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76ccd4836e5443356b1156f3021b4ca0
https://doi.org/10.1016/j.jorganchem.2009.03.014

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Reverse Kocheshkov reaction – Redistribution reactions between RSn(OCH2CH2NMe2)2Cl (R=Alk, Ar) and PhSnCl3: Experimental and DFT study

Autor: Ivan A. Portnyagin, Valery V. Lunin, Mikhail S. Nechaev

Publikováno v: Journal of Organometallic Chemistry. 693:3847-3850

A series of organotin compounds bearing two intramolecular N → Sn coordination bonds RSn(OCH 2 CH 2 NMe 2 ) 2 Cl (R = Me ( 4 ), n-Bu ( 5 ), Mes ( 6 )) were synthesized in good yields. These compounds as well as 2 (R = Ph) react with PhSnCl 3 to giv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c693d4037466e18aed5885f5a365169
https://doi.org/10.1016/j.jorganchem.2008.09.043

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New organogermanium cations [RGe(OCH2CH2NME2)2]+ with intramolecular N→Ge coordination bonds

Autor: Mikhail S. Nechaev, Ivan A. Portnyagin, V. V. Lunin

Publikováno v: Russian Chemical Bulletin. 56:926-934

New organohalogermanes RGe(OCH2CH2NMe2)2X (R = Ph, X = I (5); R = Me, X = Cl (6) or I (7)) with an intramolecular N→Ge coordination bond were synthesized. According to the 1H and 13C NMR spectroscopic data, iodides 5 and 7 exist in solution as ioni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0176f74550f4b85a422cd22cab2061eb
https://doi.org/10.1007/s11172-007-0141-x

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An Unusual Reaction of (β‐Dimethylaminoethoxy)triethyltin with Phenyltin Trichloride. The First X‐ray Structural Evidence of the Existence of Complexes R 2 SnXY·R 2 SnXY (R = Alkyl, Aryl; X, Y = Hal, OR, X ≠ Y) Both as Unsymmetrical Adducts [R 2 SnX 2 ·R 2 SnY 2 ] and Symmetrical Dimers [R 2 SnXY] 2

Autor: Yuri A. Ustynyuk, Ivan A. Portnyagin, Mikhail Yu. Antipin, Nikolay N. Zemlyansky, Irina V. Borisova, Victor N. Khrustalev, Mikhail S. Nechaev, Valery V. Lunin

Publikováno v: European Journal of Inorganic Chemistry. 2006:4271-4277

The substituent exchange reaction of PhSnCl3 with [Et3Sn(OCH2CH2NMe2)] gives rise unexpectedly to the unsymmetrical adduct [Ph2SnCl2·Ph2Sn(OCH2CH2NMe2)2] (2). It has been unambiguously proved for the first time that compounds of the RSnX3 type are a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c3aab5153f31a1fafc20a18ee5e4c18
https://doi.org/10.1002/ejic.200600527

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Donor-Stabilized Germyl Cations. Stable Pentacoordinate Germanium Chloride [PhGe(OCH2CH2NMe2)2][Cl]

Autor: Irina V. Borisova, Yuri A. Ustynyuk, Mikhail Yu. Antipin, Nikolay N. Zemlyansky, Victor N. Khrustalev, Ivan A. Portnyagin, Mikhail S. Nechaev

Publikováno v: Organometallics. 25:2501-2504

Intramolecularly coordinated phenylbis[N-(dimethylamino)ethoxy]germanium chloride (1) has been prepared, and its structure has been investigated by 1H and 13C NMR spectroscopy in solutions and by X...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::862a30ec0cd70f7967cb9a053e6770ac
https://doi.org/10.1021/om0600745

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New stable germylenes, stannylenes, and related compounds

Autor: Nikolay N. Zemlyansky, Victor N. Khrustalev, Valery V Lunin, Irina V. Borisova, Mikhail S. Nechaev, Mikhail Yu. Antipin, Yuri A. Ustynyuk, Ivan A. Portnyagin

Publikováno v: Journal of Organometallic Chemistry. 690:1172-1177

New stable heteroleptic germanium(II) and tin(II) compounds [(SiMe3)2N-E14-OCH2CH2NMe2]n (E14 = Ge, n = 1 (1), Sn, n = 2 (2)) have been synthesized and their crystal structures have been determined by X-ray diffraction analysis. While compound 1 is m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc7c69390fc6b1913fdc44d625a84e80
https://doi.org/10.1016/j.jorganchem.2004.11.024

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