941-78-6Relevant academic research and scientific papers
The preparation of pentafluorophenyldihaloboranes from pentafluorophenylmercurials C6F5HgR and BX3: the dramatic dependence of the reaction direction on the ligand R
Bardin, Vadim V.,Adonin, Nicolay Yu.
, p. 1523 - 1531 (2019/07/22)
Abstract: In search of convenient preparations of C6F5BX2 (X = Cl, Br), reactions of C6F5HgR (R = C6F5, C6H5, C2H5, Br and Cl) with BX3 were studied. Under the action of BCl3 the order of the C–Hg bond cleavage is C6F5Hg–C6H5 > C6F5–HgC2H5 > C6F5–HgC6F5 >> C6F5–HgCl. With more reactive BBr3 the sequence is C6F5Hg–C6H5 > C6F5–HgC2H5 ~ C6F5Hg–C2H5 > C6F5–HgC6F5 ≥ C6F5–HgBr. During the study we found the simple way to alkyldibromoboranes which is presented by the preparation of C2H5BBr2 from C2H5HgBr and BBr3. It is the second example of synthesis of alkylmercury derivative in an addition to the earlier reported formation of cyclopropylmercurials from di(cyclopropyl)mercury and BX3. Graphic abstract: [Figure not available: see fulltext.].
SYNTHESIS AND PROPERTIES OF COVALENT TRI- AND TETRAVALENT VANADIUM
Razuvaev, G.A.,Latyaeva, V.N.,Vyshinskaya, L.I.,Drobotenko, V.V.
, p. 169 - 182 (2007/10/02)
Reactions of VCl3*3THF with RMgX (R = Ph, CH2SiMe3, C6F5) in various ratios have been studied.The stable compounds R3V*THF (R = CH2SiMe3, C6F5) were obtained.The chemical properties of R3V*THF, R4V*2L (R = CH2Ph, L = Et2O; R = C6F5, L = THF) and (Me3SiCH2)4V were investigated.Cleavage of the vanadium-carbonium ?-bond occurs in reactions with H2O, HCl and HgCl2.The insertion of carbon dioxide into the vanadium-carbon ?-bond was investigated.A scheme for the derivatives of tri- and tetravalent vanadium is proposed.Oxidative addition to (C6F5)3V*THF by Ph3CCl and VCl3*3THF was also studied.
