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First pre-functionalised polymeric aromatic framework from mononitrotetrakis(iodophenyl)methane and its applications.

Chemistry (Weinheim an der Bergstrasse, Germany)

Verde-Sesto E, Pintado-Sierra M, Corma A, Maya EM, de la Campa JG, Iglesias M, Sánchez F.
PMID: 24623578
Chemistry. 2014 Apr 22;20(17):5111-20. doi: 10.1002/chem.201304163. Epub 2014 Mar 12.

Starting from mononitrotetrakis(iodophenyl)methane as monomer, we report the preparation of the first pre-functionalised porous aromatic frameworks (PAFs) and their application as supports for organometallic catalysts. Neutral coordinate imino-pyridine Schiff base (PAF-NPy) or chiral bis-amino (PAF-NPro) ligands were obtained by...

Ordered mesoporous materials as solid supports for rhodium-diphosphine catalysts with remarkable hydroformylation activity.

Chemical communications (Cambridge, England)

Marras F, Wang J, Coppens MO, Reek JN.
PMID: 20697633
Chem Commun (Camb). 2010 Sep 21;46(35):6587-9. doi: 10.1039/c0cc00924e. Epub 2010 Aug 09.

A rhodium-diphosphine complex based on Xantphos-type ligands was anchored on mesoporous silica SBA-15, and the material showed remarkably high catalytic activity in the hydroformylation of 1-octene, even exceeding its homogeneous analogue under certain conditions.

Polymeric adducts of rhodium(II) tetraacetate with aliphatic diamines: natural abundance 13C and 15N CPMAS NMR investigations.

Magnetic resonance in chemistry : MRC

Jaźwiński J, Kamieński B, Sadlej A.
PMID: 24123364
Magn Reson Chem. 2013 Dec;51(12):788-94. doi: 10.1002/mrc.4017. Epub 2013 Oct 04.

Complexation properties of dimeric rhodium(II) tetracarboxylates have been utilised in chemistry, spectroscopy and organic synthesis. Particularly, the combination of these rhodium salts with multifunctional ligands results in the formation of coordination polymers, and these are of interest because of...

Synthesis of dibenzo[c,e]oxepin-5(7H)-ones from benzyl thioethers and carboxylic acids: rhodium-catalyzed double C-H activation controlled by different directing groups.

Angewandte Chemie (International ed. in English)

Zhang XS, Zhang YF, Li ZW, Luo FX, Shi ZJ.
PMID: 25757707
Angew Chem Int Ed Engl. 2015 Apr 27;54(18):5478-82. doi: 10.1002/anie.201500486. Epub 2015 Mar 10.

A rhodium(III)-catalyzed cross-coupling of benzyl thioethers and aryl carboxylic acids through the two directing groups is reported. Useful structures with diverse substituents were efficiently synthesized in one step with the cleavage of four bonds (CH, CS, OH) and the...

Correction to Synthesis of Fluorenes via Tandem Copper-Catalyzed [3 + 2] Cycloaddition and Rhodium-Catalyzed Denitrogenative Cyclization in a 5-Exo Mode from 2-Ethynylbiaryls and N-Sulfonyl Azides in One-Pot.

The Journal of organic chemistry

Seo B, Jeon WH, Kim J, Kim S, Lee PH.
PMID: 26360317
J Org Chem. 2015 Oct 02;80(19):9805. doi: 10.1021/acs.joc.5b02070. Epub 2015 Sep 11.

No abstract available.

Synthesis of Quinolines via a Metal-Catalyzed Dehydrogenative N-Heterocyclization.

Chemical record (New York, N.Y.)

Chelucci G, Porcheddu A.
PMID: 27524555
Chem Rec. 2017 Feb;17(2):200-216. doi: 10.1002/tcr.201600083. Epub 2016 Aug 15.

Efficient ruthenium-, rhodium-, palladium-, copper- and iridium-catalysed methodologies have been recently developed for the synthesis of quinolines by the reaction of 2-aminobenzyl alcohols with carbonyl compounds (aldehydes and ketones) or the related alcohols. The reaction is assumed to proceed...

Toward new organometallic architectures: synthesis of carbene-centered rhodium and palladium bisphosphine complexes. stability and reactivity of [PC(BIm)PRh(L)][PF6] pincers.

Inorganic chemistry

Plikhta A, Pöthig A, Herdtweck E, Rieger B.
PMID: 26390389
Inorg Chem. 2015 Oct 05;54(19):9517-28. doi: 10.1021/acs.inorgchem.5b01428. Epub 2015 Sep 21.

In this article, we report the synthesis of a tridentate carbene-centered bisphosphine ligand precursor and its complexes. The developed four-step synthetic strategy of a new PC(BIm)P pincer ligand represents the derivatization of benzimidazole in the first and third positions...

Catalytic and Enantioselective Synthesis of Chiral Multisubstituted Tribenzothiepins by Intermolecular Cycloadditions.

Angewandte Chemie (International ed. in English)

Tahara YK, Matsubara R, Mitake A, Sato T, Kanyiva KS, Shibata T.
PMID: 26933763
Angew Chem Int Ed Engl. 2016 Mar 24;55(14):4552-6. doi: 10.1002/anie.201511876. Epub 2016 Mar 02.

The first catalytic and highly enantioselective synthesis of tribenzothiepin derivatives was achieved. Two types of intermolecular cycloadditions using either diphenyl-sulfide-tethered diynes or 2-phenyl sulfanylbenzene-tethered diynes with a monoalkyne successfully gave chiral multisubstituted tribenzothiepins in good to excellent ee values...

Asymmetric Hydrogenation of β-Aryloxy/Alkoxy Cinnamic Nitriles and Esters.

Organic letters

Kong D, Li M, Wang R, Zi G, Hou G.
PMID: 27626807
Org Lett. 2016 Oct 07;18(19):4916-4919. doi: 10.1021/acs.orglett.6b02393. Epub 2016 Sep 14.

A highly efficient and enantioselective hydrogenation of β-aryloxy/alkoxy cinnamic nitriles and esters under mild conditions has been realized by using a rhodium catalyst with a chiral f-spiroPhos ligand. The method provides efficient access to the asymmetric synthesis of a...

Enantioselective Rhodium-Catalyzed Coupling of Arylboronic Acids, 1,3-Enynes, and Imines by Alkenyl-to-Allyl 1,4-Rhodium(I) Migration.

Angewandte Chemie (International ed. in English)

Callingham M, Partridge BM, Lewis W, Lam HW.
PMID: 28980437
Angew Chem Int Ed Engl. 2017 Dec 18;56(51):16352-16356. doi: 10.1002/anie.201709334. Epub 2017 Nov 24.

A chiral rhodium complex catalyzes the highly enantioselective coupling of arylboronic acids, 1,3-enynes, and imines to give homoallylic sulfamates. The key step is the generation of allylrhodium(I) species by alkenyl-to-allyl 1,4-rhodium(I) migration.

Enantioselective Synthesis of gem-Diaryl Benzofuran-3(2H)-ones via One-Pot Asymmetric Rhodium/Palladium Relay Catalysis.

Organic letters

Zhang ZF, Zhu DX, Chen WW, Xu B, Xu MH.
PMID: 28485148
Org Lett. 2017 May 19;19(10):2726-2729. doi: 10.1021/acs.orglett.7b01070. Epub 2017 May 09.

An asymmetric dual-metal relay catalysis strategy that combines Rh/chiral sulfur-olefin-catalyzed enantioselective 1,2-addition with a Pd-catalyzed intramolecular C-O coupling has been developed. The method allows rapid and efficient synthesis of quaternary carbon-containing gem-diaryl benzofuran-3(2H)-ones in good yields in a highly...

Rhodium-catalyzed odorless synthesis of diaryl sulfides from borylarenes and S-aryl thiosulfonates.

Chemical communications (Cambridge, England)

Kanemoto K, Sugimura Y, Shimizu S, Yoshida S, Hosoya T.
PMID: 28920976
Chem Commun (Camb). 2017 Sep 26;53(77):10640-10643. doi: 10.1039/c7cc05868c.

Various diaryl sulfides, including heteroaryl- and nitrogen-containing sulfides, have been efficiently prepared by rhodium-catalyzed odorless deborylative arylthiolation of organoborons with S-aryl thiosulfonates. The ready availability of starting materials and further transformation of sulfides have rendered a diverse range of...

Showing 1 to 12 of 4878 entries