Organometallics, 2016, 35 (6),
Publication Date (Web): March 28, 2016 (Article)
DOI: 10.1021/omv035i006_809460
Organometallics, 2016, 35 (6),
Publication Date (Web): March 28, 2016 (Article)
DOI: 10.1021/omv035i006_809459
Susanne Bähr, Antoine Simonneau, Elisabeth Irran, and Martin Oestreich
Organometallics, 2016, 35 (7), pp 925–928
Publication Date (Web): March 24, 2016 (Communication)
DOI: 10.1021/acs.organomet.6b00110
The preparation of a coordinatively unsaturated NHC ruthenium complex with a tethered 2,6-dimesitylphenyl thiolate is described. Unlike related mononuclear phosphine complexes, the NHC complex forms an air-stable dimer with bridging sulfur ligands in both ...
Yang Liu, Yudong Yang, Yang Shi, Xiaojie Wang, Luoqiang Zhang, Yangyang Cheng, and Jingsong You
Organometallics, Articles ASAP (As Soon As Publishable)
Publication Date (Web): March 24, 2016 (Communication)
DOI: 10.1021/acs.organomet.6b00107
Herein we disclose the first example of transition-metal-catalyzed oxidative coupling/annulation of simple benzoic acids with terminal alkynes via C–H activation. A range of aromatic carboxylic acids and terminal alkynes have been found to be viable ...
Van Hung Mai, Ilia Korobkov, and Georgii I. Nikonov
Organometallics, 2016, 35 (7), pp 936–942
Publication Date (Web): March 23, 2016 (Article)
DOI: 10.1021/acs.organomet.5b00958
Reactions of carbene complex [Cp(IPr)Ru(pyr)2][BF4] (6, IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) with excess acetonitrile and LiCl in THF afford complexes [Cp(IPr)Ru(NCCH3)2][PF6] (7) and Cp(IPr)RuCl (8), respectively. Complex 8 was ...
Hiroshi Kanno, Kyosuke Nakamura, Keiichi Noguchi, Yu Shibata, and Ken Tanaka
Org. Lett., 2016, 18 (7), pp 1654–1657
Publication Date (Web): March 22, 2016 (Letter)
DOI: 10.1021/acs.orglett.6b00529
It has been established that a cationic rhodium(I)/BINAP complex catalyzes the cycloisomerization of 2-silylethynylphenols, leading to 3-silylbenzofurans, via 1,2-silicon migration. Similarly, the cycloisomerization of 2-silylethynylanilines, leading to 3-...
Yong-gang Shi, Deng-Tao Yang, Soren K. Mellerup, Nan Wang, Tai Peng, and Suning Wang
Org. Lett., 2016, 18 (7), pp 1626–1629
Publication Date (Web): March 22, 2016 (Letter)
DOI: 10.1021/acs.orglett.6b00485
Three isoelectronic analogues of pyrido[2,1-a]isoindole have been found to undergo a facile 1,1-hydroboration with HBMes2 borane, which provides a new and convenient method for the synthesis of B,N-heterocycles 1a–3a in high yields. Compounds 1a–3a can ...
Anton Škríba, Juraj Jašík, Erik Andris, and Jana Roithová
Organometallics, 2016, 35 (7), pp 990–994
Publication Date (Web): March 22, 2016 (Article)
DOI: 10.1021/acs.organomet.6b00021
Helium tagging infrared photodissociation (IRPD) spectroscopy for the characterization of organometallic complexes is presented. The IRPD spectrum of the [RuCp(PPh3)(PhCCH)]+ complex reveals that more than 80% of the detected ions correspond to a ...
Takamichi Wakamatsu, Kazunori Nagao, Hirohisa Ohmiya, and Masaya Sawamura
Organometallics, Articles ASAP (As Soon As Publishable)
Publication Date (Web): March 21, 2016 (Communication)
DOI: 10.1021/acs.organomet.6b00126
A copper-catalyzed system using a commercially available simple N-heterocyclic carbene ligand under atmospheric pressure of H2 (1 atm, balloon) enables the semihydrogenation of internal alkynes, which proceeds with high Z selectivity. Thus, this copper ...
Hendrik Leopold, Alexander Tronnier, Gerhard Wagenblast, Ingo Münster, and Thomas Strassner
Organometallics, 2016, 35 (7), pp 959–971
Publication Date (Web): March 21, 2016 (Article)
DOI: 10.1021/acs.organomet.5b00991
A new class of platinum(II) compounds, the 4,5-dimethyl-3-aryl-thiazole-2-ylidene platinum(II) acetylacetonato complexes, are described. Their efficient phosphorescent emission at room temperature makes them suitable for potential applications in organic ...
Xiaoyuan Zhou, Bryan E. Barton, Geoffrey M. Chambers, and Thomas B. Rauchfuss , Federica Arrigoni and Giuseppe Zampella
Inorg. Chem., 2016, 55 (7), pp 3401–3412
Publication Date (Web): March 21, 2016 (Article)
DOI: 10.1021/acs.inorgchem.5b02789
The complexes Fe2(pdt)(CNR)6 (pdt2– = CH2(CH2S–)2) were prepared by thermal substitution of the hexacarbonyl complex with the isocyanides RNC for R = C6H4-4-OMe (1), C6H4-4-Cl (2), Me (3). These complexes represent electron-rich analogues of the parent Fe...
Complexes Fe2(pdt)(CNR)6 are the first persubstituted derivatives of Fe2(pdt)(CO)6. The estimated [Fe2(pdt)(CNMe)6]+/0 couple is 2 V more reducing than [Fe2(pdt)(CO)6]+/0. DFT calculations indicate that the rotated isomer is only 2.2. kcal higher in energy than the crystallographically observed unrotated isomer. Although protonation of the arylisocyanide complexes proceeds normally to give μ-hydrides, even weak acids convert Fe2(pdt)(CNMe)6 to the unsymmetrical aminocarbyne [Fe2(pdt)(CNMe)5(μ-CN(H)Me)]+, which rearranges to the hydride. The structure of the previously described [Fe2(SMe)2(CO)3(PMe3)2(CCF3)]+ is reassigned.
Van Hung Mai and Georgii I. Nikonov
Organometallics, 2016, 35 (7), pp 943–949
Publication Date (Web): March 18, 2016 (Article)
DOI: 10.1021/acs.organomet.5b00967
In the presence of KOBut, N-heterocyclic carbene-supported half-sandwich complex [Cp(IPr)Ru(pyr)2][PF6] (3) (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) catalyzes transfer hydrogenation (TH) of nitriles, activated N-heterocycles, olefins, and ...
Hong Yi, Dali Yang, Yi Luo, Chih-Wen Pao, Jyh-Fu Lee, and Aiwen Lei
Organometallics, Articles ASAP (As Soon As Publishable)
Publication Date (Web): March 18, 2016 (Article)
DOI: 10.1021/acs.organomet.6b00034
Recently, transition-metal-catalyzed radical phosphorylations have provided a direct and useful way to P-substituted compounds. Although a variety of methodologies involving phosphinoyl radicals have been developed, the mechanism of the P–H compounds in ...
Feriel Rekhroukh, Laura Estevez, Christian Bijani, Karinne Miqueu, Abderrahmane Amgoune, and Didier Bourissou
Organometallics, 2016, 35 (7), pp 995–1001
Publication Date (Web): March 18, 2016 (Article)
DOI: 10.1021/acs.organomet.6b00040
A detailed experimental/theoretical study of the migratory insertion of norbornene into gold(III)–carbon bonds of discrete (P,C)-cyclometalated gold(III) alkyl complexes is reported. The generation of cationic gold(III) methyl complex 2 by methide ...
Christopher H. Schuster, Tianning Diao, Iraklis Pappas, and Paul J. Chirik
ACS Catal., 2016, 6 (4), pp 2632–2636
Publication Date (Web): March 18, 2016 (Letter)
DOI: 10.1021/acscatal.6b00304
High-spin pyridine diimine cobalt(II) bis(carboxylate) complexes have been synthesized and exhibit high activity for the hydrosilylation of a range of commercially relevant alkenes and tertiary silanes. Previously observed dehydrogenative silylation is ...
Matthieu Jouffroy, Geraint H. M. Davies, and Gary A. Molander
Org. Lett., 2016, 18 (7), pp 1606–1609
Publication Date (Web): March 17, 2016 (Letter)
DOI: 10.1021/acs.orglett.6b00466
A highly effective method for derivatizing 2,1-borazaronaphthalene cores using ammonium alkylbis(catecholato)silicates via photoredox/nickel dual catalysis is reported. By forging Csp3–Csp2 bonds via this approach, alkyl fragments with various functional ...
Haruka Nishiyama, Keishi Yamamoto, Andreas Sauer, Hideaki Ikeda, Thomas P. Spaniol, Hayato Tsurugi, Kazushi Mashima, and Jun Okuda
Organometallics, 2016, 35 (7), pp 932–935
Publication Date (Web): March 17, 2016 (Article)
DOI: 10.1021/acs.organomet.5b00855
A tungsten alkylidyne complex [{(OC6H2tBu2-4,6)2(SCH2CH2S)}W(≡CEt)X] (X = OtBu, 1a) with a bridged bis(phenolate) ligand was prepared from the alkoxy precursor (tBuO)3W≡CEt and the corresponding bis(phenol). The tert-butoxy ligand in 1a was substituted ...
Subhayan Dey, Wei Sun, and Jens Müller
Inorg. Chem., 2016, 55 (7), pp 3630–3639
Publication Date (Web): March 17, 2016 (Article)
DOI: 10.1021/acs.inorgchem.6b00170
The in situ prepared dilithio derivative of the known species 1-bromo-1′-(trimethylsilylamino)ferrocene (1) reacted with tBuPCl2 to form the first example of a [2]ferrocenophane ([2]FCP) bridged by nitrogen and phosphorus (2). Sulfurization of 2 followed ...
In the course of developing a new class of strained sandwich species for ring-opening polymerization, we discovered that the outcome of the common salt-metathesis approach strongly depends on the substituent on nitrogen. While the first azaphospha[2]ferrocenophanes could be prepared for R = SiMe3, other cases unexpectedly gave unstrained structural isomers. Experimental results, complemented by DFT calculations, are discussed.
Kevin W. Magnuson, Shelly M. Oshiro, Joshua R. Gurr, Wesley Y. Yoshida, Milan Gembicky, Arnold L. Rheingold, Russell P. Hughes, and Matthew F. Cain
Organometallics, 2016, 35 (6), pp 855–859
Publication Date (Web): March 16, 2016 (Communication)
DOI: 10.1021/acs.organomet.6b00101
A rationally designed and selective synthesis of hybrid phosphine–phosphaalkene ligands E-1a (Cy2PCH2CH═PMes*, Mes* = 2,4,6-tri-tert-butylphenyl) and E-1b (Ph2PCH2CH═PMes*) was developed using phospha-Wittig methodology. The new hybrid ligands E-1a and E-...
Xiaohui Kang, Guangli Zhou, Xingbao Wang, Jingping Qu, Zhaomin Hou, and Yi Luo
Organometallics, 2016, 35 (6), pp 913–920
Publication Date (Web): March 16, 2016 (Article)
DOI: 10.1021/acs.organomet.6b00081
The effect of alkyls on the chain initiation efficiency of ethylene, propene, 1-hexene, styrene, butadiene, and isoprene polymerizations catalyzed by the half-sandwich cationic rare-earth-metal alkyl complexes [(η5-C5Me5)ScR]+ (R = CH2SiMe3, 1; R = o-CH2C...
