A new synthesis for methyl/trifluoromethyl organometallic compounds by low temperature cocondensation of trifluoromethyl radicals and main group methyl alkyls
The reaction of trifluoromethylradicals produced in a radio frequency discharge of hexafluoroethane with trimethylphosphine, tetramethyltin, dimethylmercury, tri-methylbismuth and tetramethyllead gave complexes with methyl and trifluoromethyl substituents. The compounds dimethyl(trifluoromethyl)phosphine, trimethyl(trifluoromethyl)tin, methyl(trifluoromethyl)mercury, bis(trifluoromethyl)mercury, dim
Borazine‐CF
<sub>3</sub>
<sup>−</sup>
Adducts for Rapid, Room Temperature, and Broad Scope Trifluoromethylation
作者:Jacob B. Geri、Michael M. Wade Wolfe、Nathaniel K. Szymczak
DOI:10.1002/anie.201711316
日期:2018.1.26
A fluoroform‐derived borazine CF3− transfer reagent is used to effect rapid nucleophilic reactions in the absence of additives, within minutes at 25 °C. Inorganic electrophiles spanning seven groups of the periodic table can be trifluoromethylated in high yield, including transition metals used for catalytic trifluoromethylation. Organic electrophiles included (hetero)arenes, enabling C−H and C−X
EUJEN R.; LAGOW R. J., J. CHEM. SOC. DALTON TRANS., 1978, NO 6, 541-544
作者:EUJEN R.、 LAGOW R. J.
DOI:——
日期:——
Trifluormethylsubstituierte plumbane. Synthese, eigenschaften und NMR-Spektren der verbindungen (CF3)nPbR4-n (n = 1–3) und (C
作者:R. Eujen、A. Patorra
DOI:10.1016/0022-328x(92)88006-5
日期:1992.10
Trifluoromethylated derivatives of lead, (CF3)nPbR4-n (n = 1–3; R = CH3, C2H5), have been prepared by a stepwise halide/CF3 exchange from (CF3)nPbR3-nX (n=O–2) and donor-stabilized (CF3)2Cd. Upon treatment of CF3PbR3 and (CF3)2PbR2 with halides under mild conditions, selectivecleavage of the PbC(H) bond and formation of the corresponding alkyl(trifluoromethyl)haloplumbanes were achieved, whereas
Reactions of bis(trifluoromethyl)mercury: the synthesis and properties of methyl(trifluoromethyl)-stannanes and -plumbanes
作者:Reint Eujen、Richard J. Lagow
DOI:10.1039/dt9780000541
日期:——
reactions of Hg(CF3)2 with Group 4 organometalliccompounds MMe4(M = Si,Ge,Sn, or Pb), MMe3(CF3)(M = Sn or Pb), and M2R6(M = Si or Sn, R = Me; M = Ge, Sn, or Pb, R = Ph) have been investigated. Exchange of one CF3, group with a methyl group occurs for SnMe4, SnMe3(CF3), and PbMe4; the lead derivative reacts much more readily than the tincompound. Cleavage of the metal-metal bond with formation of MR3(CF3)
Hg(CF 3)2与4族有机金属化合物MMe 4(M = Si,Ge,Sn或Pb),MMe 3(CF 3)(M = Sn或Pb)和M 2 R 6(M = Si或Sn,R = Me; M = Ge,Sn或Pb,R = Ph)已被研究。SnMe 4,SnMe 3(CF 3)和PbMe 4发生一个CF 3基与甲基的交换。铅衍生物比锡化合物更容易反应。对于Sn 2 Me 6,已经实现了金属-金属键的裂解以及MR 3(CF 3)的形成但是对于Si 2 Me 6和六苯基衍生物却不发生。研究了PbMe 3(CF 3)与溴,氯化氢和水的反应及其热稳定性。讨论了第4组混合三氟甲基-甲基衍生物的光谱性质。