17933-10-7Relevant 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.].
Novel Organoboron-Oxygen-Halogenaluminium Compounds from Triorganoboroxins with Aluminium Trihalides
Koester, Roland,Angermund, Klaus,Serwatowski, Janusz,Sporzynski, Andrzej
, p. 1301 - 1314 (2007/10/02)
4 mol of triorganoboroxins (RBO)3 (1) react with 6 mol of aluminium trihalides AlHal3 (2) under cleavage of 4 mol dihalogenoorganoboranes RBHal2 (3) leading in high yields to 2 mol of compounds 4 having the composition R4Al3B4Hal5O6 (MS analyses) .The structure of 4aa, 4ba, 4ca, and 4bb in solution is deduced from spectroscopic data (IR; 1H, 11B, 17O and 27Al NMR).The molecular structure of the solid (C6H5)4Al3B4Cl5O6 (4da) with two (AlOBOBO)-rings bonded through one penta-coordinated aluminium atom was determined by X-ray diffraction analysis.
