Platinum complexes containing or derived from olefinic phosphines P(X)((CH2)6CH CH2)2 (X = OH, Ph, (CH2)6CH CH2); ring closing metatheses, structures, and trans/cis isomerizations
Platinum complexes containing or derived from olefinic phosphines P(X)((CH2)6CH CH2)2 (X = OH, Ph, (CH2)6CH CH2); ring closing metatheses, structures, and trans/cis isomerizations
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含有或衍生自烯属膦 P(X)((CH2)6CH CH2)2 (X–=–OH, Ph, (CH2)6CH CH2) 的铂络合物;
DOI:
10.1016/j.poly.2018.09.025
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发表时间:
2019
期刊:
影响因子:
2.6
通讯作者:
Gladysz, John A.
中科院分区:
文献类型:
--
作者:
Stollenz, Michael;Joshi, Hemant;Ehnbom, Andreas;Fiedler, Tobias;Kharel, Sugam;Reibenspies, Joseph H.;Bhuvanesh, Nattamai;Hall, Michael B.;Gladysz, John A.
The reaction of (Odouble bond)PH((CH2)6CHdouble bondCH2)2(2.0 equiv) and PtCl2in toluene givestrans-PtCl2(P(OH)((CH2)6CHdouble bondCH2)2)2in 68% yield as a 82:18 mixture of Pt–Cl⋯H–OP hydrogen bond isomers. Addition of Grubbs’ first generation catalyst followed by hydrogenation (5 bar, cat. RhCl(PPh3)3or PtO2) affords the doublytransspanning macrocyclic diphosphine adducttrans- (31–9% crude yields). A crystal structure shows that the two OH groups areanti, and hydrogen bond to opposite Cl–Pt–Cl chlorine atoms. The reaction of P(Ph)((CH2)6CHdouble bondCH2)2(2.0 equiv) and PtCl2in toluene givescis-PtCl2(P(Ph)((CH2)6CHdouble bondCH2)2)2(cis-5, 40%) andtrans-5(8%). The crystal structure of the former is determined. Thetrans/cisequilibrium ratios of these and related complexes are probed by DFT. Attempts to crystallizetrans- (trans-7′), which is a minor product from a published metathesis/hydrogenation sequence involvingtrans-PtCl2(P((CH2)6CHdouble bondCH2)3)2, give onlycis-7′, as established by31P NMR and crystallography.
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影响因子:
--
作者:
Leyong Wang;F. Hampel;J. Gladysz
通讯作者:
J. Gladysz
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
Natascha Lewanzik;T. Oeser;J. Blümel;J. Gladysz
通讯作者:
J. Gladysz
DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
B. Walther
通讯作者:
B. Walther
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
Zoran Kokan;B. Perić;G. Kovačević;A. Brozovic;N. Metzler‐Nolte;S. Kirin
通讯作者:
S. Kirin
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
D. Lichtenberger;J. Gladysz
通讯作者:
J. Gladysz