共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
S. A. Pisareva P. V. Petrovskii K. A. Lyssenko M. Yu. Antipin E. E. Nifant’ev 《Russian Chemical Bulletin》2004,53(9):2008-2012
The reaction of 1,1,1-tris(chloromethyl)propane with diphenylphosphine under phase-transfer conditions afforded 1,1,1-tris(diphenylphosphinomethyl)propane, whose oxidation gave a previously unknown representative of trigonal tris(phosphine oxides), viz., stable 1,1,1-tris(diphenylphosphorylmethyl)propane. Its analogs, viz., bis(diphenylphosphoryl)diphenylphosphinomethane and tris(diphenylphosphoryl)methane, are unstable in air and decompose with the cleavage of the P-C bond.Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1926–1929, September, 2004. 相似文献
3.
4.
B. A. Trofimov N. K. Gusarova S. F. Malysheva E. P. Vyalykh T. N. Rakhmatulina M. G. Voronkov 《Russian Chemical Bulletin》1988,37(6):1284-1284
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, p. 1449, June, 1988. 相似文献
5.
Yuzuru Uchida Kimihiko Matsuoka Ryuji Kajita Yoshikane Kawasaki Shigeru Oae 《Heteroatom Chemistry》1997,8(5):439-449
Treatment of tris(2-pyridyl)phosphine or tris(2-pyridyl)phosphine oxide with electrophiles such as chlorine, bromine, deuterium chloride, or benzenediazonium chloride gave unusual coupling products, i.e., 5-chloro-, 5-bromo-, 5-deuterio-, or 5-phenylazo-2,2′-bipyridyls, respectively, as a major coupling product in each case. This is considered to be the result of electrophilic substitution on a pyridyl ring in a pentacovalent phosphorane intermediate formed in each reaction. © 1997 John Wiley & Sons, Inc. Heteroatom Chem 8: 439–449, 1997 相似文献
6.
S. F. Malysheva N. K. Gusarova T. N. Rakhmatulina T. I. Kazantseva V. I. Dmitriev B. A. Trofimov 《Russian Chemical Bulletin》1989,38(7):1569-1569
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1705–1706, July, 1989. 相似文献
7.
Boris A. Trofimov Alexander V. Artem’ev Svetlana F. Malysheva Nina K. Gusarova Nataliya A. Belogorlova Anastasiya O. Korocheva Yuriy V. Gatilov Victor I. Mamatyuk 《Tetrahedron letters》2012,53(19):2424-2427
2-Bromopyridine reacts with elemental phosphorus (red or white) in a superbasic KOH/DMSO(H2O) suspension at 100 °C (for red phosphorus) and 75 °C (for white phosphorus) over 3 h to afford tris(2-pyridyl)phosphine in a 62% yield (from red phosphorus) and a 50% yield (from white phosphorus). Under microwave assistance, the reaction with red phosphorus takes just 20 min to produce tris(2-pyridyl)phosphine in 53% yield. A hitherto unknown complex, [Pd(PPy3)2Cl2]·CH2Cl2, synthesized from tris(2-pyridyl)phosphine and PdCl2, has the cis-configuration; this is unusual for bis(phosphino)palladium dichloride complexes. 相似文献
8.
V. A. Kuimov S. F. Malysheva A. V. Artem’ev S. O. Kenzhetaeva N. A. Belogorlova T. N. Komarova N. K. Gusarova B. A. Trofimov 《Russian Journal of Organic Chemistry》2014,50(10):1438-1442
Bis[1-(methoxyphenyl)propan-2-yl]phosphines and bis[1-(methoxyphenyl)propan-2-yl]phosphine oxides were synthesized by phosphorylation of allyl(methoxy)benzenes in the system red phosphorus-KOH · 0.5 H2O-DMSO under microwave irradiation. 相似文献
9.
10.
《Journal of Inorganic and Nuclear Chemistry》1980,42(2):261-264
Organic phosphine oxides (S) were determined from γ-counting of 237U in the 1:1 adduct complex UO2(TTA)2 · S (where TTA is thenoyltrifluoroacetone) extracted by synergic effect. Distribution ratios of S are independent of the aqueous pH (1–3) and the reagent concentrations. Partition constants (Ps) were obtained between thirteen organic solvents and aqueous solutions, and they decrease in the order, tri-n-octyl > tris (2-ethylhexyl) > triphenyl phosphine oxides. The Ps values much depend on the kind of solvent, and their regularity is interpreted in terms of solubility parameters. 相似文献
11.
A study was carried out on the IR spectra of (CH3)2P(O)CH2Cl and (CH2Cl)2PO. The frequencies and forms of the normal modes were calculated. The molecular mechanics method was used to calculate the energy of the various conformations of these molecules. (CH3)2P(O)CH2Cl in the liquid and solution is a mixture of trans and gauche conformations, while (CH2Cl)3PO is a mixture of trans,gauche,gauche, trans,gauche,gauche, and gauche,gauche,gauche conformations.S. M. Kirov Kazan Chemical Engineering Institute and A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Branch, Academy of Sciences of the USSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 30, No. 6, pp. 38–46, November–December, 1989. 相似文献
12.
N. K. Gusarova S. F. Malysheva S. N. Arbuzova B. A. Trofimov 《Russian Chemical Bulletin》1998,47(9):1645-1652
Data on the reactions of elemental phosphorus and phosphine with electrophilic reagents are described systematically and analyzed.
These reactions occur in the presence of strong bases and yield primary, secondary, and tertiary phosphines and phosphine
oxides.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1695–1702, September, 1998. 相似文献
13.
14.
A series of five gold(I) halide complexes with the two isomeric methoxy-substituted triarylphosphines, tris(2-methoxyphenyl)phosphine [P(oanis)3], [AuP(oanis)3X] [for X = Cl, (1); X = Br, (2) and X = I, (3)] and tris(4-methoxyphenyl)phosphine [P(panis)3], [AuP(panis)3X] [for X = Br (4) and X = I (5)] have been synthesized and characterized by single crystal X-ray diffraction and solution 31P{1H} NMR spectroscopy. The structure determinations confirm the expected presence of linear two-coordination about the gold centres in all five complexes with bond distance and angle data typical of this type of compound [Au–P, 2.239(2)–2.259(3) Å; Au–Cl, 2.294(2) Å; Au–Br, 2.385(2)–2.402(2) Å; Au–I, 2.546(1)–2.554(1) Å; P–Au–X; 175.3(1)–180°]. All analogues except the iodo complex 5 crystallize with one complex molecule in the crystallographic asymmetric unit. The bromo and iodo complexes 2 and 3 constitute a trigonal isomorphous set while the bromo complex 4 is also isomorphous with the previously determined chloro complex [AuP(panis)3Cl]. The 2-methoxy analogues are stabilized by significant methoxy-O?Au interactions. 相似文献
15.
16.
17.
Svetlana F. Malysheva Nataliya A. Belogorlova Vladimir A. Kuimov Yurii I. Litvintsev Irina V. Sterkhova Alexander I. Albanov Nina K. Gusarova Boris A. Trofimov 《Tetrahedron letters》2018,59(8):723-726
In the superbase KOH/H2O/toluene/phase-transfer catalyst system, 2-picolyl chloride, generated in situ from 2-(chloromethyl)pyridine hydrochloride, reacts with elemental phosphorus at 65–95?°C for 3?h to afford tris(2-picolyl)phosphine oxide in 50% yield. Single crystal X-ray analysis of the latter revealed one polymorph form of this tertiary phosphine oxide. 相似文献
18.
19.
20.
The new tris(ferrocenylamine) ditertiary phosphine 1,1′-{FcCH2N(CH2PPh2)CH2(η5-C5H4)}2Fe [Fc = (η5-C5H5)Fe(η5-C5H4)] has been prepared along with two coordination complexes. All compounds have been characterised by a combination of spectroscopic and analytical methods. The single crystal X-ray structure of the pentametallic Ru2Fe3 complex 5 has been determined. 相似文献