Meijere, Armin de

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[["dc.bibliographiccitation.issue","18"],["dc.bibliographiccitation.journal","ChemInform"],["dc.bibliographiccitation.volume","40"],["dc.contributor.author","Lygin, Alexander V."],["dc.contributor.author","Larionov, Oleg V."],["dc.contributor.author","Korotkov, Vadim S."],["dc.contributor.author","de Meijere, Armin"],["dc.date.accessioned","2021-12-08T12:29:43Z"],["dc.date.available","2021-12-08T12:29:43Z"],["dc.date.issued","2009"],["dc.identifier.doi","10.1002/chin.200918119"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/96186"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-476"],["dc.relation.eissn","1522-2667"],["dc.relation.issn","0931-7597"],["dc.rights.uri","http://doi.wiley.com/10.1002/tdm_license_1.1"],["dc.title","ChemInform Abstract: Oligosubstituted Pyrroles Directly from Substituted Methyl Isocyanides and Acetylenes."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

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[["dc.bibliographiccitation.firstpage","no"],["dc.bibliographiccitation.issue","29"],["dc.bibliographiccitation.journal","ChemInform"],["dc.bibliographiccitation.lastpage","no"],["dc.bibliographiccitation.volume","30"],["dc.contributor.author","de Meijere, Armin"],["dc.contributor.author","Kozhushkov, Sergei I."],["dc.contributor.author","Yufit, Dmitrii S."],["dc.contributor.author","Howard, Judith A. K."],["dc.date.accessioned","2021-12-08T12:28:31Z"],["dc.date.available","2021-12-08T12:28:31Z"],["dc.date.issued","2010"],["dc.identifier.doi","10.1002/chin.199929048"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/95728"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-476"],["dc.relation.eissn","1522-2667"],["dc.relation.issn","0931-7597"],["dc.rights.uri","http://doi.wiley.com/10.1002/tdm_license_1.1"],["dc.title","ChemInform Abstract: Intriguing Modes of Addition of 1,3,4-Triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene to Bicyclopropylidene."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3112"],["dc.bibliographiccitation.issue","16"],["dc.bibliographiccitation.journal","European Journal of Organic Chemistry"],["dc.bibliographiccitation.lastpage","3121"],["dc.contributor.author","Arndt, Marion"],["dc.contributor.author","Hilt, Gerhard"],["dc.contributor.author","Khlebnikov, Alexander F."],["dc.contributor.author","Kozhushkov, Sergei I."],["dc.contributor.author","de Meijere, Armin"],["dc.date.accessioned","2018-11-07T09:10:01Z"],["dc.date.available","2018-11-07T09:10:01Z"],["dc.date.issued","2012"],["dc.description.abstract","The straightforward synthesis of new bicyclopropyl-substituted alkynes and 1,3-dienes and their application in cobalt-catalyzed DielsAlder reactions are described. The cycloaddition processes generated the desired bicyclopropyl-substituted arene derivatives in moderate to good yields, depending on the steric congestion of the reaction partners. The regioselectivity of the cycloaddition was controlled by the ligand coordinated to the cobalt center. The cyclopropyl moiety remained unchanged over the course of the DielsAlder reaction, indicating that no radical type intermediates were formed. Only in a single case did the DDQ oxidation of the primarily formed dihydroaromatic product lead to ring opening of a cyclopropyl subunit. In all of the other cases, cyclopropyl-modified arenes with various functionalities were obtained."],["dc.identifier.doi","10.1002/ejoc.201200105"],["dc.identifier.isi","000304083700010"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26397"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1434-193X"],["dc.title","Diels-Alder Reactions for the Construction of Cyclopropylarenes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5642"],["dc.bibliographiccitation.issue","21"],["dc.bibliographiccitation.journal","Chemistry - A European Journal"],["dc.bibliographiccitation.lastpage","5647"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Kozhushkov, Sergei I."],["dc.contributor.author","Foerstner, Jan"],["dc.contributor.author","Kakoschke, Alf"],["dc.contributor.author","Stellfeldt, Dirk"],["dc.contributor.author","Yong, L. I."],["dc.contributor.author","Wartchow, Rudolf"],["dc.contributor.author","de Meijere, Armin"],["dc.contributor.author","Butenschoen, Holger"],["dc.date.accessioned","2018-11-07T09:31:59Z"],["dc.date.available","2018-11-07T09:31:59Z"],["dc.date.issued","2006"],["dc.description.abstract","Treatment of {eta(5):eta(1)[2-(di-tertbutylphosphanyl-P)ethyl]cyclopentadienyl)cobalt(i) chloride (5) with methylenecyclopropane (3) or bicyclopropylidene (4), as well as with their spirocyclopropanated analogues methylenespiropentane (7), cyclopropylidenespiropentane (10), or 7,7'-bi(dispiro[2.0.2.1]heptylidene) (15) in the presence of sodium amalgam at -50 degrees C, furnished the stable cobalt complexes 6, 9, 8, 11, and 16, respectively, in 72, 83, 84, 86, and 54 % isolated yield, respectively. The complexes 14 and 16 were also obtained by ligand exchange of the ethene complex {eta(5):eta(1)[2-(di-tertbutylphosphanyl -P) ethyl] cyclopentadienyl) (eta(2)-ethene) cobalt (1) (12) with 13 and 15 in 79 and 52 % yield, respectively. The X-ray crystal-structure analyses of complexes 9, 14, and 16, as well as the NMR-spectroscopic data of all complexes, reveal that they can be regarded as linear and branched cobalta[n]triangulanes. The thermal stability of complexes 6, 8, and 9 up to 109, 145, and 160 degrees C was determined by differential thermal analysis-thermogravimetry (DTA-TG) analysis."],["dc.identifier.doi","10.1002/chem.200600118"],["dc.identifier.isi","000239325400026"],["dc.identifier.pmid","16755618"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31646"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","0947-6539"],["dc.title","Syntheses and structures of sterically congested linear and branched cobalta[n]triangulanes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","no"],["dc.bibliographiccitation.issue","32"],["dc.bibliographiccitation.journal","ChemInform"],["dc.bibliographiccitation.lastpage","no"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","ZORN, C."],["dc.contributor.author","GOTI, A."],["dc.contributor.author","BRANDI, A."],["dc.contributor.author","JOHNSEN, K."],["dc.contributor.author","KOZHUSHKOV, S. I."],["dc.contributor.author","DE MEIJERE, A."],["dc.date.accessioned","2021-12-08T12:28:21Z"],["dc.date.available","2021-12-08T12:28:21Z"],["dc.date.issued","2010"],["dc.identifier.doi","10.1002/chin.199832199"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/95659"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-476"],["dc.relation.eissn","1522-2667"],["dc.relation.issn","0931-7597"],["dc.rights.uri","http://doi.wiley.com/10.1002/tdm_license_1.1"],["dc.title","ChemInform Abstract: A New Cascade Ring Enlargement of Isoxazolidines Formed from 2-Chloro-2-cyclopropylideneacetates."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","21"],["dc.bibliographiccitation.journal","ChemInform"],["dc.bibliographiccitation.volume","36"],["dc.contributor.author","Larionov, Oleg V."],["dc.contributor.author","Kozhushkov, Sergei I."],["dc.contributor.author","de Meijere, Armin"],["dc.date.accessioned","2021-12-08T12:29:21Z"],["dc.date.available","2021-12-08T12:29:21Z"],["dc.date.issued","2005"],["dc.identifier.doi","10.1002/chin.200521082"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/96049"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-476"],["dc.relation.eissn","1522-2667"],["dc.relation.issn","0931-7597"],["dc.rights.uri","http://doi.wiley.com/10.1002/tdm_license_1.1"],["dc.title","Facile Preparation of tert-Butyl 1-tert-Butoxycarbonylaminocyclopent-3-enecarboxylate from Inexpensive Starting Materials."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1409"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","European Journal of Organic Chemistry"],["dc.bibliographiccitation.lastpage","1415"],["dc.contributor.author","Kozhushkov, Sergei I."],["dc.contributor.author","Yufit, Dmitry S."],["dc.contributor.author","Boese, R."],["dc.contributor.author","Blaser, D."],["dc.contributor.author","Schreiner, Peter R."],["dc.contributor.author","de Meijere, Armin"],["dc.date.accessioned","2018-11-07T11:15:09Z"],["dc.date.available","2018-11-07T11:15:09Z"],["dc.date.issued","2005"],["dc.description.abstract","1,3-Diisopropyl- (4), 1-tert-butyl-3-isopropyl- (5), 1,3,5-triisopropyl- (6) and 1-tert-butyl-3,5-diisopropyladamantane (7) were prepared from the same synthetic precursor - methyl 3-isopropyladamantane-1-carboxylate (10) - applying a standard set of repetitive procedures in 65, 77, 24, and 34 % overall yield, respectively. 1,3,5,7-Tetraethenyladamantane (17) was obtained in two steps - Swern oxidation and Wittig olefination - from 1,3,5,7-tetrakis(hydroxymethyl)adamantane (15) in 45 % overall yield and converted into 1,3,5,7-tetracy-clopropyladamantane (8) by fourfold cyclopropanation with diazomethane catalyzed by palladium(II) acetate (91 % yield). Hydrogenolysis of 8 over a platinum catalyst furnished 1,3,5,7-tetraisopropyladamantane (9) in quantitative yield. 1-Isopropyladamantane (3) as well as the hydrocarbons 4-7 did not give any crystals suitable for X-ray crystal structure analysis, even when using the Optical Heating and Crystallization Device (OHCD). This method was rather successful when applied to the tetravinyl derivative 17, X-ray crystal structure analysis of which revealed an approximately C-2- symmetric conformation in the solid state at 150 K However, no well-defined orientation was detected for the cyclopropyl groups in 8, and the molecules were severely disordered even at 30(1) K. In contrast to this, X-ray crystal structure analysis of the tetraisopropyl derivative 9 revealed an S-4-symmetric conformation for this hydrocarbon at 203 K. ((c) Wiley-VCH Verlag GmbH 1 Co. KGaA, 69451 Weinheim, Germany, 2005)."],["dc.identifier.doi","10.1002/ejoc.200400731"],["dc.identifier.isi","000228260600022"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54303"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1434-193X"],["dc.title","Conformational studies on oligosubstituted adamantane derivatives - Structural features of tetravinyl-, tetracyclopropyl-, and tetraisopropyladamantane"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]