Bimolecular displacements of iodine in reactions of dimethyl[tris(trimethylsilyl)methyl]silyl iodide with salts
作者:Saman A.I. Al-Shali、Colin Eaborn
DOI:10.1016/0022-328x(83)80204-6
日期:1983.4
Direct nucleophilic displacement of iodine to give (Me3Si)3 CSiMe2 Y, where Y = F, NCO, NCS, CN or N3, takes place when (Me3Si)3 CSiMe2I is treated with solutions of CsF, KOCN, KSCN, KCN, or NaN3 in MeOH or CH3 CN. The order of effectiveness of the nucleophiles appears to be N3 > F > CN > NCS > NCO in MeOH and NCS > NCO > CN, F in CH3 CN.
Reactions of the highly sterically hindered compounds (Me3Si)3CSiMe2X (X Cl, Br, I, or ONO2) with NaN3, CsF, KSCN, and KOCN in MeOH
作者:Yousef Y. El-Kaddar、Colin Eaborn、Paul D. Lickiss
DOI:10.1016/0022-328x(93)80351-b
日期:1993.11
these side-products increases in the sequence (X ) I < Br < Cl, in line with the decreasing reactivity of the substrate towards the salts. With KOCN, the least reactive of the salts used, substantial amounts of the side-products are formed even from the reactions of the nitrate. The rough relative reactivities of 3, 2, 1, and 9 at 60°C are: 0.1/1.0/4.5/83 towards NaN3; 0.5/1.0/2.6/115 towards CsF; and
硝酸盐TSiSiMe的反应2 ONO 2,9,(TSI(ME 3 Si)的3 C)与盐MY,的0.25M的溶液即。NaN 3,CsF和KSCN在MeOH中分别在45°C和60°C时给出相应的取代产物TSiSiMe 2 Y,但对于卤化物TSiSiMe 2 X,则X X I(1)为Br(2)或Cl(3)形成一些副产物,主要是碎片产物(Me 3 Si)2 CHSiMe 2-OMe; 这些副产物的比例按(X)I
EABORN, COLIN;FATTAH, FARAEDAN A., J. ORGANOMET. CHEM., 396,(1990) N, C. 1-8
作者:EABORN, COLIN、FATTAH, FARAEDAN A.
DOI:——
日期:——
AL-SHALI, S. A. I.;EABORN, C., J. ORGANOMET. CHEM., 1983, 246, N 2, C34-C36