Abstract
Reaction of the Pt(II) complexes [PtMe2(pbt)], 1a, (pbt = 2-(2-pyridyl)benzothiazole) and [PtMe(C^N)(PPh2Me)] [C^N = deprotonated 2-phenylpyridine (ppy), 1b, or deprotonated benzo[h]quinoline (bhq), 1c] with benzyl bromide, PhCH2Br, is studied. The reaction of 1a with PhCH2Br gave the Pt(IV) product complex [PtBr(CH2Ph)Me2(pbt)]. The major trans isomer is formed in a trans oxidative addition (2a), while the minor cis products (2a' and 2a″) resulted from an isomerization process. A solution of Pt(II) complex 1a in the presence of benzyl bromide in toluene at 70 °C after 7 days gradually gave the dibromo Pt(IV) complex [Pt(Br)2Me2(pbt)], 4a, as determined by NMR spectroscopy and single-crystal XRD. The reaction of complexes 1b and 1c with PhCH2Br gave the Pt(IV) complexes [PtMeBr(CH2Ph)(C^N)(PPh2Me)] (C^N = ppy; 2b; C^N = bhq, 2c), in which the phosphine and benzyl ligands are trans. Multinuclear NMR spectroscopy ruled out other isomers. Attempts to grow crystals of the cycloplatinated(IV) complex 2b yielded a previously reported Pt(II) complex [PtBr(ppy)(PPh2Me)], 3b, presumably from reductive elimination of ethylbenzene. UV-vis spectroscopy was used to study the kinetics of reaction of Pt(II) complexes 1a-1c with benzyl bromide...Continue Reading
References
Feb 19, 2002·Chemical Reviews·Louis M. Rendina, Richard J. Puddephatt
Apr 1, 2003·Journal of Computational Chemistry·Maurizio CossiVincenzo Barone
Mar 12, 2008·The Journal of Physical Chemistry. a·Sónia M FiuzaLuis A E Batista de Carvalho
May 8, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·S Masoud NabavizadehKeyamars Eskandari
May 20, 2008·Inorganic Chemistry·Sirous JamaliMehdi Rashidi
Nov 20, 2009·Physical Chemistry Chemical Physics : PCCP·Christopher J Cramer, Donald G Truhlar
Feb 6, 2010·Accounts of Chemical Research·Zhenyang Lin
May 12, 2011·Inorganic Chemistry·Guixiang Zeng, Shigeyoshi Sakaki
Jun 25, 2013·Journal of the American Chemical Society·Allegra L Liberman-MartinT Don Tilley
Nov 19, 2013·Inorganic Chemistry·S Masoud NabavizadehZahra Parsa
Dec 16, 2016·Bioconjugate Chemistry·Anastasia I SolomatinaSergey P Tunik
Jan 6, 2017·The Journal of Organic Chemistry·Pengcheng LiuFeng Li
Sep 7, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Hossein GhariAlireza Ariafard
Nov 10, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Mahboubeh JamshidiS Masoud Nabavizadeh
Dec 13, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Jiang-Yang ShaoYu-Wu Zhong
Jul 14, 2018·Angewandte Chemie·Charlie BlonsDidier Bourissou
Aug 31, 2018·Chemical Communications : Chem Comm·Antony ChipmanAlireza Ariafard
Jan 8, 2019·Journal of the American Chemical Society·Justin B DiccianniTianning Diao
Feb 23, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Peyman HamidizadehS Jafar Hoseini
Aug 29, 2019·ACS Omega·Matthew S McCready, Richard J Puddephatt
Aug 29, 2019·ACS Omega·Mahmood A FardRichard J Puddephatt
Aug 29, 2019·ACS Omega·Mahmood Azizpoor FardRichard J Puddephatt
Sep 27, 2019·Chemical Communications : Chem Comm·Jun-Ichi ItoHisao Nishiyama
Jan 31, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·S Masoud NabavizadehMahdi M Abu-Omar