Results 111 to 120 of about 66,905 (286)

Morphological Control of Aurophilic Chains of Gold(I) Dithiolate Dimers With Alkali and Alkali Earth Cations

Chemistry – A European Journal, EarlyView.
Luminescent coordination polymers of Group 1 (Li, K, Cs) and 2 (Mg─Ba) cations with gold(I) iso‐maleonitriledithiolate ({Au2[S2C = C(CN)2]}2−) units were prepared; 1‐D aurophilic chains are present in all cases. The structures strongly depend on cation charge and size, with N‐cyano coordination observed in the Gp 1 and larger Gp 2 cations. Increasingly
Jefferson A. Pells, William W. L. Ho, Daniel B. Leznoff   +2 more
wiley   +1 more source

Allylation of Orthoquinones Towards Annulated Polycyclic Aromatic Systems

Molecules, 2018
Promising results of an efficient and convenient strategy for the annulation of polycyclic aromatic compounds (PACs), employing orthoquinones as starting material and comprising allylation, pinacol rearrangement, ring-closing metathesis (RCM), and one ...
Mariusz Kędziorek, Liliana Dobrzańska
doaj   +1 more source

Designing organometallic compounds for catalysis and therapy [PDF]

, 2012
Bioorganometallic chemistry is a rapidly developing area of research. In recent years organometallic compounds have provided a rich platform for the design of effective catalysts, e.g. for olefin metathesis and transfer hydrogenation.
Abraha Habtemariam, Aird, Alama, Alama, Alberto, Allardyce, Allen, Allen, Ana M. Pizarro, Anand, Ang, Ang, Anna Louisa Noffke, Arancibia, Barragan, Barry, Barry, Barry, Barry, Bergamo, Bergamo, Betanzos-Lara, Betanzos-Lara, Betanzos-Lara, Brewster, Bugarcic, Bugarcic, Canivet, Carrión, Caruso, Casini, Casini, Casini, Chaplin, Chen, Chen, del Pozo, Desmard, Dorcier, Dorcier, Dougan, Dougan, Dyson, Erxleben, Feng, Fernandez, Filak, Fu, Fu, Fujii, Giannini, Gormen, Gossens, Grau, Grguric-Sipka, Grubbs, Gröger, Guichard, Guo, Guo, Habtemariam, Hambley, Hamels, Hanif, Hanif, Harris, Hartinger, Hashiguchi, Hayes, Hayward, Herman, Hindi, Hogan, Hollmann, Hu, Hull, Ito, Jafarpour, Jennerwein, Jira, Jungwirth, Kandioller, Kisova, Kljun, Kopf, Kopf-Maier, Kopf-Maier, Kopf-Maier, Kopf-Maier, Kröger, Kuninobu, Lee, Leiva, Li, Liu, Liu, Liu, Liu, Liu, Lo, Lo, Lummen, Lutz, Maenaka, Meggers, Meggers, Meggers, Melchart, Melchart, Melchart, Melendez, Mendes, Motterlini, Mross, Novakova, Novakova, Novakova, Noyori, Noyori, Oehninger, Ogo, Ogo, Olliaro, Page, Patiño, Peacock, Peacock, Peacock, Peacock, Pelletier, Peter J. Sadler, Petzold, Petzold, Pitto-Barry, Pitto-Barry, Pizarro, Plazuk, Rocamora-Reverte, Ruiz, Ruppert, Sandoval, Sanford, Sarsam, Schatzschneider, Schmid, Schäfer, Scolaro, Selander, Skinner, Sriskandakumar, Steckhan, Strohfeldt, Suss-Fink, Sweeney, Takebayashi, Tan, Therrien, Therrien, Toney, Top, Top, Top, Trnka, Turel, van der Donk, van Rijt, van Rijt, van Rijt, Vessières, Vougioukalakis, Vougioukalakis, Wang, Wang, Wang, Ward, Williams, Williams, Wong, Wu, Wu, Yabluchanskiy, Yamakawa, Yan, Yano, Yuasa, Zava, Zekri, Zhao, Zoeller   +188 more
core   +1 more source

Ladder‐Like Structural Architecture of Layered Magnetic A2.4 Cr8Te14 (A = Rb, Cs) Compounds by Self‐Flux Synthesis

Chemistry – A European Journal, EarlyView.
A2.4Cr8Te14$A_{2.4}{\rm Cr}_{8}{\rm Te}_{14}$ (A = Rb, Cs) compounds exhibit a layered, ladder‐like Cr‐Te framework uniting structural motives of hollandite‐like and delafossite‐like phases. Alkali atoms are situated both in the interlayer space and tunnels within the Cr8Te14${\rm Cr}_{8}{\rm Te}_{14}$ framework.
Kai D. Röseler, Felix Eder, Fabian O. von Rohr   +2 more
wiley   +1 more source

Initiation of Olefin Metathesis: Reaction of Deca-2,8-diene with Catalysts formed from Me_4Sn-WC1_6 and Me_3Al_2Cl_3-(Ph_3P)_2(NO)_2Cl_2Mo [PDF]

, 1977
The initial product of the metathesis of deca-2,8-diene with metathesis catalysts formed from either Me_4Sn–WCl_6 or Me_3Al_2Cl_3–(Ph_3P)_2(NO)_2Cl_2Mo is propene; labelling of the terminal groups of the diene and the alkylating agents gives a labelling ...
Grubbs, Robert H., Hoppin, Charles R.
core  

Mild N‑Arylation of Sulfoximines With (Hetero)aryl Chlorides Enabled by α‐Methylnaphthyl‐tBuBrettPhos Palladium Triflate

Chemistry – A European Journal, EarlyView.
A readily accessible, air‐ and moisture‐stable palladium precatalyst, [Pd(1‐MeNAP)(tBuBrettPhos)]OTf, enables the direct N‐arylation of NH‐sulfoximines with (hetero)aryl chlorides under exceptionally mild conditions ideal for late‐stage diversification of drug‐like scaffolds.
Sourav Manna, Mahima Pilania, Kumarjit Sen, Nikolaos V. Tzouras, Angelino Doppiu, Lukas J. Gooßen   +5 more
wiley   +1 more source

Metátese na linguagem infantil: “porfessora” é bom, “professora” é melhor

Saber & Educar, 2013
A leitura e a escrita são ensinadas a crianças cuja linguagem oral contém ainda, muitas vezes, desvios subtis. A metátese é um desses desvios, consistindo na troca da ordem de fonemas na palavra, tal como acontece em “corcodilo”.
Rosa M. Lima
doaj  

Bidirectional cross metathesis and ring-closing metathesis/ring opening of a C2-symmetric building block: a strategy for the synthesis of decanolide natural products

Beilstein Journal of Organic Chemistry, 2013
Starting from the conveniently available ex-chiral pool building block (R,R)-hexa-1,5-diene-3,4-diol, the ten-membered ring lactones stagonolide E and curvulide A were synthesized using a bidirectional olefin-metathesis functionalization of the terminal ...
Bernd Schmidt, Oliver Kunz
doaj   +1 more source

Synthesis and Reactivity of Extremely Electron‐Poor Au(III) Complexes Bearing OTf− or NTf2− Ligands

Chemistry – A European Journal, EarlyView.
A new family of electron‐poor Au(III) cations bearing bistriflimide or triflate ligands is reported. These cations can undergo direct C─H metalation with simple arenes to give mono‐aryl cations. Subsequent addition of simple halide sources allows for reductive elimination of aryl halides, formally from Ar─H and X−. ABSTRACT The synthesis and structural
Lachlan Barwise, Emily Mulhallen‐Graham, Lachlan J. Moon, Lachlan Sharp‐Bucknall, Miracle I. Ekavhiare, Keith F. White, Jason L. Dutton   +6 more
wiley   +1 more source

Nitro-Grela-type complexes containing iodides – robust and selective catalysts for olefin metathesis under challenging conditions

Beilstein Journal of Organic Chemistry, 2015
Iodide-containing nitro-Grela-type catalysts have been synthesized and applied to ring closing metathesis (RCM) and cross metathesis (CM) reactions. These new catalysts have exhibited improved efficiency in the transformation of sterically, non-demanding
Andrzej Tracz, Mateusz Matczak, Katarzyna Urbaniak, Krzysztof Skowerski   +3 more
doaj   +1 more source