One-Pot Synthesis of Tetrakis(alkylthio)ethylenes and of 1,3-Dithiole Derivatives from Bis(methylthio)methane
作者:Alec Moradpour、Shmuel Bittner
DOI:10.1055/s-1988-27570
日期:——
A new synthesis of tetrakis(alkylthio)ethylenes and of 1,3-dithiole derivatives is reported. The carbanion derived from bis(methylthio)methane is reacted with carbon disulfide, followed by alkylation and/or cyclization steps.
Co-ordination chemistry of electron-rich poly(organosulphur) compounds. Part 2. Comparative data on reactions of di-µ-chloro-bis[chloro(triethylphosphine)platinum(<scp>II</scp>)], and the crystal and molecular structure of cis-µ-2,2-bis(methylthio)ethene-1,1-dithiolato-SS″ : S′S‴-bis[chloro(triethylphosphine)platinum(<scp>II</scp>)]
作者:Bekir C̣etinkaya、Peter B. Hitchcock、Michael F. Lappert、Peter L. Pye、David B. Shaw
DOI:10.1039/dt9790000434
日期:——
The tetrakis(alkylthio)-olefins C2(SR)4(R = Me or Et) react with [PtCl2(PEt3)}2] in hot xylene to yield cis- and trans-[(Et3P)Cl[graphic omitted]tCl(PEt3)]; with C2(SEt)4 there is spectroscopic evidence for intermediates, cis- and trans-[(Et3P)Cl2[graphic omitted](RS)CC(SR)([graphic omitted]tCl2(PEt3)](R = Et). In contrast, the cyclic olefin [:[graphic omitted]]2 forms the SS″-bonded cis-[PtCl(PE
The co-ordination chemistry of electron-rich poly(organosulphur) compounds. Part 1. Chromium(<scp>0</scp>), molybdenum(<scp>0</scp>), and tungsten(<scp>0</scp>) complexes having tetrakis(thioalkyl)olefins as two- or four-electron donors: the crystal and molecular structure of tetracarbonyl[tetrakis(methylthio)ethene-SS″]chromium
作者:Michael F. Lappert、David B. Shaw、George M. McLaughlin
DOI:10.1039/dt9790000427
日期:——
Treatment of [Cr(CO)6] with C2(SR)4(LSR2) under photolysis in tetrahydrofuran affords cis-[M(CO)4(LSR2)](9; M = Cr, R = Me); analogues (9; M = Cr, Mo, or W; R = Et) have been obtained in better yield from the appropriate hexacarbonyl and C2(SEt)4 in EtOH in the presence of Na[BH4]. In contrast, the olefin (:[graphic omitted])2 and [Cr(CO)6] gave [Cr(CO)5[graphic omitted][graphic omitted]}], which
在四氢呋喃中用光解法用C 2(SR)4(L SR 2)处理[Cr(CO)6 ],得到顺式-[M(CO)4(L SR 2)](9; M = Cr,R = Me ); 在Na [BH 4 ]存在下,由适当的六羰基和C 2(SEt)4在EtOH中的较好收率得到类似物(9; M = Cr,Mo或W; R = Et)。相反,烯烃(:[省略图示] [Cr(CO)6)2和[Cr(CO)5提供[Cr省略] [Graphic省略]}的[Cr(CO)5 ]在加热时转变为烯烃和[Cr (CO)6]; 在[OEt 3 ] [BF 4 ]的存在下,可以从[NEt 4 ] [Cr(CO)5 Cl]和烯烃获得相关的络合物[Cr(CO)5 C 2(SEt)4 } ],但是Mo或W的类似物不稳定,产生复杂的化合物(9)。通过用C 2(SEt)4和PPh 3连续处理,由[M(CO)3(NCMe)3 ]制备了复合物fac- [M(CO)3(PPh
Tetrakis(methylthio)ethene as a bidentate chelating and quadridentate bridging thioether
作者:Edward W. Abel、Kenneth Kite、Bruce L. Williams
DOI:10.1039/dt9830001017
日期:——
In the complex [PtClMe(MeS)2CC(SMe)2}] the thioether functions as a bidentatechelate, and in [(PtBrMe3)2(MeS)2CC(SMe)2] as a bridgingquadridentate ligand. In both compounds sulphur inversion is fast at room temperature.
在复合物[PtClMe (MeS)2 C C(SMe)2 }]中,硫醚起二齿螯合物的作用,在[(PtBrMe 3)2(MeS)2 C C(SMe)2 ]中的作用为桥联四配位体。在这两种化合物中,室温下硫的转化速度都很快。
Dithio- und Thionester, 26. Mitt. Methylthio-dithioessigester
作者:Klaus Hartke、Josef Quante
DOI:10.1002/ardp.19803131210
日期:——
Die Methylthio‐dithioessigsäure‐methylester 2 und 3 sind aus den zugehörigen Nitrilen erhältlich. Ihre Chlorierung, Oxidation und Methylierung werden beschrieben.