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26
Schwarz M, Vollmann M, Wartchow R, Butenschön H. Synthesis and cyclic voltammetry of some new metal carbene substituted cyclopentadienyliron half sandwich complexes. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.02.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
27
Wartchow R, Roeper JS, Hoffmann ΗMR. Crystal structures of ethanol hemisolvates of (1S,3R,4S,8S,9R)-1N-boranyl-6' - methoxy-cinchonan-9-ol, C20H27BN2O2 · ½C2H5OH, and (1S,3S,4S,8S,9R)-1N-boranyl- 10,11 -didehydro-6' -methoxy-cinchonan-9-ol, C20H25BN2O2 · ½C2H5OH. Z KRIST-NEW CRYST ST 2005. [DOI: 10.1524/ncrs.2005.220.14.89] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
28
Hotje U, Wartchow R, Binnewies M. Chemischer Transport fester L�sungen. 15 [1]. Der Chemische Transport von Mischphasen in Systemen TiS2/TiSe2, TiS2/TaS2, TiSe2/TaSe2 und TaS2/TaSe2. Z Anorg Allg Chem 2005. [DOI: 10.1002/zaac.200400398] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
29
Strotmann M, Wartchow R, Butenschön H. High yield synthesis and structures of some achiral and chiral (diphosphine)tetracarbonylchromium(0) chelate complexes with tetracarbonyl(norbornadiene)chromium(0) as complexation reagent. ARKIVOC 2004. [DOI: 10.3998/ark.5550190.0005.d07] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]  Open
30
Franz MH, Röper S, Wartchow R, Hoffmann HMR. The first and second cinchona rearrangement. Two fundamental transformations of alkaloid chemistry. J Org Chem 2004;69:2983-91. [PMID: 15104435 DOI: 10.1021/jo030363s] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
31
Albrecht U, Wartchow R, Hoffmann HMR. Stereocontrolled Construction of 6 · 5 · 6 and 5 · 5 · 6 Ring Systems by Radical Tandem Cyclization. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/anie.199209101] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
32
Wartchow R, Müller L, Binnewies M. Crystal structure of manganese gallium germanium silicon oxide (garnet type), Mn3(Ga2-ζ,Mn,)(Ge3-zSiz)O12 (y = 0.6, ζ = 0.14; j=0.44, z=0), and of manganese gallium germanium silicon oxide (braunite type), Mn(Mn6-yGay)(Si1-zGez)O12 (y = 0.7, z = 0.4). Z KRIST-NEW CRYST ST 2003. [DOI: 10.1524/ncrs.2003.218.jg.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
33
Wartchow R, Müller L, Binnewies M. Crystal structure of manganese gallium germanium silicon oxide (garnet type), Mn3(Ga2–yMny)(Ge3–zSiz)O12 (y = 0.6, z = 0.14; y = 0.44, z = 0), and of manganese gallium germanium silicon oxide (braunite type), Mn(Mn6–yGay)(Si1–zGez)O12 (y = 0.7, z = 0.4). Z KRIST-NEW CRYST ST 2003. [DOI: 10.1524/ncrs.2003.218.4.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
34
Yong L, Hofer E, Wartchow R, Butenschön H. Oxidative Addition of Hydrosilanes, Hydrogermane, and Hydrostannane to Cyclopentadienylcobalt(I) Bearing a Pendant Phosphane Ligand:  Cyclopentadienylhydridocobalt(III) Chelate Complexes with Silyl, Germyl, and Stannyl Ligands. Organometallics 2003. [DOI: 10.1021/om030581b] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
35
Schnebel M, Weidner I, Wartchow R, Butenschön H. Reactions between Benzocyclobutenone Tricarbonylchromium Complexes and Lithium Dialkylphosphides: A New Route to Isochromanones. European J Org Chem 2003. [DOI: 10.1002/ejoc.200300390] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
36
Schütte M, Wartchow R, Binnewies M. Shape Controlling Synthesis— Formation of Fe3Si by the Reaction of Iron with Silicon Tetrachloride and Crystal Structure Refinement. Z Anorg Allg Chem 2003. [DOI: 10.1002/zaac.200300125] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
37
Knappwost-Gieseke C, Nerenz F, Wartchow R, Winterfeldt E. High-pressure selectivity studies--a simple route to a homochiral wistarin precursor. Chemistry 2003;9:3849-58. [PMID: 12916109 DOI: 10.1002/chem.200204524] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
38
Röper S, Franz MH, Wartchow R, Hoffmann HMR. Fused triazoles via tandem reactions of activated Cinchona alkaloids with azide ion. Second Cinchona rearrangement exemplified. Org Lett 2003;5:2773-6. [PMID: 12889871 DOI: 10.1021/ol034719y] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
39
Röper S, Franz MH, Wartchow R, Hoffmann HMR. Preparation of enantiopure 1-azabicyclo[3.2.2]nonanes functionalized at carbon C3, from cinchonine and cinchonidine. stereoselective solvolysis and an easily enolizable ketone. J Org Chem 2003;68:4944-6. [PMID: 12790606 DOI: 10.1021/jo026890d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
40
Kirschning A, Kunst E, Ries M, Rose L, Schönberger A, Wartchow R. Polymer-bound haloate(I) anions by iodine(III)-mediated oxidation of polymer-bound iodide: Synthetic utility in natural product transformations. ARKIVOC 2003. [DOI: 10.3998/ark.5550190.0004.617] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]  Open
41
Röper S, Wartchow R, Hoffmann HMR. S(N)1-like reactions of bicyclic alpha-amino ethers with sulfur, nitrogen, and carbon nucleophiles. Synthesis of 1-azabicyclo[3.2.2]nonanes functionalized at carbon C2 and C6 with complete stereocontrol. Org Lett 2002;4:3179-82. [PMID: 12227743 DOI: 10.1021/ol026342m] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
42
Leinweber D, Schnebel M, Wartchow R, Wey H, Butenschön H. Ninhydrin as a Source of Naphthoquinone Acetals and Benzocycloheptenetrione Derivatives, and the Trapping of an Oxacarbene Derived from a Cyclopentanone. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200207)2002:14<2385::aid-ejoc2385>3.0.co;2-s] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
43
Proemmel S, Wartchow R, Hoffmann H. Synthesis and studies of marine natural products: the dictyoxetane core from 8-oxabicyclo[3.2.1]oct-6-en-3-ones. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00622-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
44
Dongol K, Wartchow R, Butenschön H. Tricarbonyl(3-methoxybenzocyclobutenedione)chromium: Regioselective Nucleophilic Addition Reactions, Dianionic Oxy-Cope Rearrangements, Regioselective Intramolecular Aldol Additions, and a Rare Case of an Anionic 1-Vinylcyclobutenol−Cyclohexadienol Rearrangement. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200206)2002:12<1972::aid-ejoc1972>3.0.co;2-h] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
45
Hoffmann HMR, Eggert U, Walenta A, Weineck E, Schomburg D, Wartchow R, Allen FH. Trispiro[2.1.2.1.2.1]dodecane-4,8,12-trione and other oligomers of carbonylcyclopropane. The organozinc route. J Org Chem 2002. [DOI: 10.1021/jo00287a022] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
46
Wolter M, Borm C, Merten E, Wartchow R, Winterfeldt E. Enantiopure Polycycles by Sequential Cycloadditions. European J Org Chem 2001. [DOI: 10.1002/1099-0690(200111)2001:21<4051::aid-ejoc4051>3.0.co;2-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
47
Kieć-Kononowicz K, Drabczyńska A, Pękala E, Michalak B, Müller CE, Schumacher B, Karolak-Wojciechowska J, Duddeck H, Rockitt S, Wartchow R. New developments in A1 and A2 adenosine receptor antagonists. PURE APPL CHEM 2001. [DOI: 10.1351/pac200173091411] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
48
Voigt B, Wartchow R, Butenschön H. Lithiated Heterocycles as Substrates for Dianionic Oxy-Cope Rearrangements − Chelation Accounts for Regioselective Enolate Hydrolysis. European J Org Chem 2001. [DOI: 10.1002/1099-0690(200107)2001:13<2519::aid-ejoc2519>3.0.co;2-b] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
49
Trân-Huu-Dâu ME, Wartchow R, Winterfeldt E, Wong YS. New cyclohexadienone derivatives: preparation and chiral discrimination in high-pressure Diels-Alder cycloadditions. Chemistry 2001;7:2349-69. [PMID: 11446638 DOI: 10.1002/1521-3765(20010601)7:11<2349::aid-chem23490>3.0.co;2-c] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
50
Pfeifer A, Wartchow R, Binnewies M. Crystal structure of diindium digermanate, In2(Ge2O7). Z KRIST-NEW CRYST ST 2001. [DOI: 10.1524/ncrs.2001.216.14.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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