Charge-transfer spectra of organometallic complexes—I. Formation constants for complexes of trialkyltiniodides with iodine in carbon tetrachloride solutions
DIMETHYLTRIFLUOROACETYLARSINE AND RELATED COMPOUNDS
作者:W. R. Cullen、G. E. Styan
DOI:10.1139/v66-180
日期:1966.5.15
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Substitution at saturated carbon. Part XIII. Steric effects in the substitution of tetra-alkyltin compounds by mercury(II) chloride in t-butyl alcohol and in acetonitrile
作者:M. H. Abraham、F. Behbahany、M. J. Hogarth
DOI:10.1039/j19710002566
日期:——
previously for the substitution of tetra-alkyltins by mercury(II) chloride in methanol and methanol–water mixtures. It is concluded that the above substitutions in solvents t-butyl alcohol and acetonitrile proceed by essentially the same mechanism as do the corresponding substitutions in solvents methanol and methanol–water, that is by the SE2(open) mechanism of substitution at saturated carbon.
已确定了在溶剂叔丁醇和乙腈中用氯化汞(II)取代四甲基,四乙基,四正丙基,四异丙基,四正丁基和四异丁基锡的速率常数。。对于这两种溶剂,速率常数沿R 4 Sn = Me 4 Sn Et 4 Sn> Pr n 4 Sn Bu n 4 Sn> Bu i 4 Sn Pr i 4 Sn序列显着降低,因此产生相同的空间顺序以前发现的被汞取代四烷基锡的反应性(II)在甲醇和甲醇-水混合物中的氯化物。结论是,上述在叔丁醇和乙腈溶剂中的取代基本上是通过与在溶剂甲醇和甲醇-水中的相应取代相同的机理进行的,即通过在饱和碳原子上的S E 2(open)取代机理进行的。 。
Some aspects of neighbouring group participation in organotin chemistry
作者:R.M.G. Roberts
DOI:10.1016/s0022-328x(00)82642-x
日期:1971.11
The kinetics and mechanism of reaction of the iododestannylation and mercuridestannylation of a number of novel trimethyltin derivatives have been studied in a variety of solvents. Both reaction types followed a similar pattern: where EI, or HgI. Step (3) was much slower than step (1).
Synthesis and Characterization of Group 14−Platinum(IV) Complexes
作者:Christopher J. Levy、Jagadese J. Vittal、Richard J. Puddephatt
DOI:10.1021/om950493u
日期:1996.4.16
[PtMe2(diimine)] complexes give facile trans oxidativeaddition of the E−X bond (E = Si, X = Br, I; E = Ge, Sn, X = Cl, Br, I). The oxidativeadditions occur more readily for MenEX4-n in the sequences X = I > Br > Cl and E = Sn > Ge > Si. The first stable silylplatinum(IV) complexes have been prepared in this way, and the X-ray crystalstructure of [PtIMe2(Me3Si)(bpy)] shows an exceptionally long Pt−I bond length
第14组化合物Me n EX 4- n(E = Si,Ge,Sn; X = Cl,Br,I)与富电子的[PtMe 2(diimine )]配合物的反应可轻松实现E-的反氧化加成X键(E = Si,X = Br,I; E = Ge,Sn,X = Cl,Br,I)。对于Me n EX 4- n而言,以X = I> Br> Cl和E = Sn> Ge> Si的顺序更容易发生氧化加成。以这种方式制备了第一个稳定的甲硅烷基铂(IV)配合物,[PtIMe 2(Me 3 Si)(bpy)]的X射线晶体结构显示了异常长的Pt-I键长(2.963(1)Å )与高反三甲基甲硅烷基的影响。1 H NMR研究表明,涉及锗和锡试剂的氧化加成反应易于逆转。几种铂(IV)-锡配合物具有掺入晶格中的第二分子锡试剂。[PtIMe 2(Me 3 Sn)(bpy- t bu 2)] 2 ·Me 3 SnI·CH 2 Cl 2的
A utility for organoleads: selective alkyl and aryl group transfer to tin
作者:Renzo N. Arias-Ugarte、Keith H. Pannell
DOI:10.1039/c7dt04520d
日期:——
and Ph4Pb readily transfer methyl or phenyl groups to an equivalent molar ratio of tin(IV) chlorides in the order SnCl4 > MeSnCl3 > Me2SnCl2 > Me3SnCl, often in a selective manner. Me3PbCl and Ph3PbCl specifically transfer a single methyl/phenyl group under the same reaction conditions to produce recovered yields in >75%. Specific transfer of 2 methyl groups from PbMe4 can be achieved at elevated temperatures
Me 4 Pb和Ph 4 Pb经常以选择性方式容易地将甲基或苯基基团转移到氯化锡(IV)的当量摩尔比,依次为SnCl 4 > MeSnCl 3 > Me 2 SnCl 2 > Me 3 SnCl。Me 3 PbCl和Ph 3 PbCl在相同反应条件下特异性转移单个甲基/苯基,回收率> 75%。来自PbMe 4的2个甲基的特定转移可以在升高的温度和/或Pb:Sn的摩尔比为2:1的情况下实现。