Preparation, ligand-exchange reactions, and alkylation reactions of some carbon disulphide derivatives of iron
作者:Paul Conway、Seamus M. Grant、A. R. Manning
DOI:10.1039/dt9790001920
日期:——
which may be polynuclear. When L = CNMe or CNBut further reaction occurs to give [Fe(CO)L3(CS2)] and then a carbonyl-free complex. Ligand-exchange reactions of the complexes where L = PPh3 or P(OPh)3 with the phosphorus(III) ligands L′ gives [Fe(CO)2L(L′)(CS2)] rapidly and then [Fe(CO)2L′2(CS2)] much more slowly. The extent of this reaction depends on ligand size and is more complete for the less bulky
Synthesis of dialkyl and diaryl benzylphosphonates through a ZnI2-mediated reaction
作者:Rebekah M. Richardson、Rocky J. Barney、David F. Wiemer
DOI:10.1016/j.tetlet.2012.09.114
日期:2012.12
Several trialkyl and two triaryl phosphites have been tested for their reactivity in the zinc iodide mediated conversion of benzyl alcohol to the corresponding phosphonates. Most react smoothly to afford the desired phosphonate diesters, including hindered and nonracemic phosphites. The implications of this reactivity on the reactions involved in the transformation are discussed.
Trinuclear complexes from the reactions of [Fe3(Co)12] with group VA ligands
作者:Seamus M. Grant、A.R. Manning
DOI:10.1016/s0020-1693(00)94978-8
日期:1978.1
AsIII and SbIII ligands, L1 with [Fe3(CO)12] under mild conditions give [Fe3CO11(L)], [Fe3CO10(L)2], and [Fe3(CO)9P(OR)3}3] derivatives as well as the mono- nuclear [Fe(CO)4(L)] and [Fe(CO)32] complexes. Cluster breakdown is greatest with phosphines and least with phosphites. Of the compounds thus obtained, only [Fe3(CO)9P(OR)33}3] (R = iPr, cyclo-C6H11 and, perhaps, Et, o-MeC64 and p-MeC6H4) exist solely
各种p III,As III和Sb III配体L 1与[Fe 3(CO)12 ]在温和条件下的反应得到[Fe 3 CO 11(L)],[Fe 3 CO 10(L)2 ],和[Fe 3(CO)9 P(OR)3 } 3 ]衍生物以及单核[Fe(CO)4(L)]和[Fe(CO)3 2 ]配合物。膦类的团簇分解最大,而亚磷酸盐的团簇分解最少。在如此获得的化合物中,只有[Fe 3(CO)9 P(OR)3 3 } 3 ](R = i Pr,环-C 6 H 11,也许还有Et,o -MeC 6 4和p -MeC 6 H 4)仅作为非桥联异构体存在于固态以及溶液中。其余为固态的CO桥连物种,其结构可能基于[Fe 3(CO)12]的CO桥连形式。]。在溶液中,它们异构化为CO桥联异构体与其他不具有桥联配体的混合物。后者占主导地位。非桥接互变异构体的红外光谱不能得出关于其结构的任何结论。
Preparation and characterisation of a series of cationic monometallated, and neutral and cationic tridentate dimetallated, tri-o-tolyl phosphite iridium(III) complexes
作者:Eric Singleton、Erwin van der Stok
DOI:10.1039/dt9780000926
日期:——
to [IrCl(cod)}2](cod = cyclo-octa-1,5-diene) in various solvents have given the internally metallated complexes [Ir(P–C)(cod)P(OC6H4Me-o)3}][P–C = P(OC6H3Me-o)-(OC6H4Me-o)2], [IrCl(P–C)2P(OC6H4Me-o)3}], and a complex analysing for [Ir2Cl2P(OC6H4Me-o)3}3]. Chemical attempts to fully characterise the last product afforded the dimers [lr2Cl2(P–C2)2L(L′)][P–C2= P(OC6H3Me-o)2(OC6H4Me-o); L = P(OC6H4Me-o)3
在各种溶剂中对[IrCl(cod)} 2 ](cod =环辛基-1,5-二烯)进行化学计量的P(OC 6 H 4 Me- o)3加成反应,得到内部金属化的配合物[Ir(P –C)(鳕鱼)P(OC 6 H 4 Me- o)3 }] [P–C = P(OC 6 H 3 Me- o)-(OC 6 H 4 Me- o)2 ],[IrCl (P–C)2 P(OC 6 H 4 Me- o)3 }],以及[Ir 2Cl 2 P(OC 6 H 4 Me- o)3 } 3 ]。化学企图完全表征,得到二聚体[LR的最后一个产品2氯2(P-C 2)2 L(L')] [P-C 2 = P(OC 6 H ^ 3 ME- Ô)2(OC 6 ħ 4 ME- Ò); L = P(OC 6 H 4 Me- o)3,L′= MeCN;m = 1。L = L'= MeCN,EtOH,Pr n OH,CO或SbPh 3]。的桥裂变的[Ir
Synthese von [(η5-C5H5)2Ti(Cl)(CCSiMe3)]Ni(CO) und dessen Reaktionsverhalten gegenüber Phosphiten: die Festkörperstruktur von (CO)2Ni[P(OC6H4CH3-2)3]2
作者:E Meichel、Th Stein、J Kralik、G Rheinwald、H Lang
DOI:10.1016/s0022-328x(02)01117-8
日期:2002.4
Treatment of [Ti](Cl)(CCSiMe3) (1) [Ti]=(η5-C5H5)2Ti} with Ni(CO)4 (2) in a 1:1 molar ratio produces the heterobimetallic early–late transition metal complex [Ti](Cl)(CCSiMe3)}Ni(CO) (3), which features a low-valent Ni(CO) entity stabilized by a datively bonded Cl and a η2-coordinated Me3SiCC ligand. As side-products [Ti]Cl2 (8) and [Ti](CCSiMe3)2}Ni(CO) (5) are formed. The latter complex can
钛[Ti](CL)(CCSiMe的处理3)(1)[钛] =(η 5 -C 5 H ^ 5)2的Ti}用Ni(CO)4(2在1):1的摩尔比产生的异早迟过渡金属络合物钛[Ti](CL)(CCSiMe 3)}的Ni(CO)(3),其设有由datively接合Cl和稳定的低原子价的Ni(CO)实体η 2配位的我3 SiCC配体。作为副产物钛[Ti]氯2(8)和[钛](CCSiMe 3)2 }的Ni(CO)(5) 形成。后者复杂也可以通过钛[Ti](CCSiMe反应合成3)2(4)与等摩尔量的2。如果3与化学计算量的P(OR)3(6a,R = C 6 H 5 ; 6b,R = C 6 H 4 CH 3 -2; 6c,R = C 6 H 4 t Bu-2)反应,则双(炔基)钛茂4,(CO)2 Ni [P(OR)3 ] 2(7a,R = C6 H 5;7b,R = C 6 H 4 CH