@article{37984,
  abstract     = {{<jats:p>The Wittig reaction is a fundamental transformation for the preparation of alkenes from carbonyl compounds and phosphonium ylides. The ylides are prepared prior to the olefination step from the respective phosphonium salts by deprotonation utilizing strong bases. A first free-base catalytic Wittig reaction for the preparation of highly functionalized alkenes was based on tributylphosphane as the catalyst. Subsequently we developed a system employing a phospholene oxide as a pre-catalyst and trimethoxysilane as reducing agent which operates under milder conditions. The title compounds, (<jats:italic>E</jats:italic>)-3-benzylidenepyrrolidine-2,5-dione, C<jats:sub>11</jats:sub>H<jats:sub>9</jats:sub>NO<jats:sub>2</jats:sub>, (I), the methylpyrrolidine derivative, C<jats:sub>12</jats:sub>H<jats:sub>11</jats:sub>NO<jats:sub>2</jats:sub>, (II), and the<jats:italic>tert-</jats:italic>butylpyrrolidine derivative, C<jats:sub>15</jats:sub>H<jats:sub>17</jats:sub>NO<jats:sub>2</jats:sub>, (III), have been synthesized by base-free catalytic Wittig reactions. In the crystal of (I), molecules are linked into centrosymmetric dimers<jats:italic>via</jats:italic>pairs of N—H...O hydrogen bonds. Furthermore, in the crystal structure of (III), there are two molecules in the asymmetric unit, whereas in (I) and (II), only one molecule is present.</jats:p>}},
  author       = {{Schirmer, Marie-Luis and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{2053-2296}},
  journal      = {{Acta Crystallographica Section C Structural Chemistry}},
  keywords     = {{T2}},
  number       = {{6}},
  pages        = {{504--508}},
  publisher    = {{International Union of Crystallography (IUCr)}},
  title        = {{{Highly functionalized alkenes produced from base-free organocatalytic Wittig reactions: (<i>E</i>)-3-benzylidenepyrrolidine-2,5-dione, (<i>E</i>)-3-benzylidene-1-methylpyrrolidine-2,5-dione and (<i>E</i>)-3-benzylidene-1-<i>tert</i>-butylpyrrolidine-2,5-dione}}},
  doi          = {{10.1107/s2053229616008159}},
  volume       = {{72}},
  year         = {{2016}},
}

@article{37981,
  abstract     = {{<p>The lithium <italic>tert</italic>-butoxide catalyzed addition of CS<sub>2</sub> to epoxides and thiiranes under mild conditions is reported. A mechanism has been proposed taking into account the regio- and stereochemical outcome of the reaction.</p>}},
  author       = {{Diebler, J. and Spannenberg, A. and Werner, Thomas}},
  issn         = {{1477-0520}},
  journal      = {{Organic and Biomolecular Chemistry}},
  keywords     = {{CSSD}},
  number       = {{31}},
  pages        = {{7480--7489}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Atom economical synthesis of di- and trithiocarbonates by the lithium tert-butoxide catalyzed addition of carbon disulfide to epoxides and thiiranes}}},
  doi          = {{10.1039/c6ob01081d}},
  volume       = {{14}},
  year         = {{2016}},
}

@article{37987,
  abstract     = {{<p>A novel zinc based binary catalytic system for the synthesis of cyclic carbonates under mild and solvent-free conditions utilizing CO<sub>2</sub>as a C1 building block is reported.</p>}},
  author       = {{Desens, Willi and Kohrt, Christina and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{2052-4129}},
  journal      = {{Organic Chemistry Frontiers}},
  keywords     = {{T1, T3, CSSD}},
  number       = {{2}},
  pages        = {{156--164}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{A novel zinc based binary catalytic system for CO<sub>2</sub>utilization under mild conditions}}},
  doi          = {{10.1039/c5qo00356c}},
  volume       = {{3}},
  year         = {{2016}},
}

@article{37982,
  author       = {{Diebler, Johannes and Komber, Hartmut and Häußler, Liane and Lederer, Albena and Werner, Thomas}},
  issn         = {{0024-9297}},
  journal      = {{Macromolecules}},
  keywords     = {{CSSD}},
  number       = {{13}},
  pages        = {{4723--4731}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Alkoxide-Initiated Regioselective Coupling of Carbon Disulfide and Terminal Epoxides for the Synthesis of Strongly Alternating Copolymers}}},
  doi          = {{10.1021/acs.macromol.6b00728}},
  volume       = {{49}},
  year         = {{2016}},
}

@article{37980,
  author       = {{Büttner, Hendrik and Grimmer, Christoph and Steinbauer, Johannes and Werner, Thomas}},
  issn         = {{2168-0485}},
  journal      = {{ACS Sustainable Chemistry &amp; Engineering}},
  keywords     = {{T1, T3, CSSD}},
  number       = {{9}},
  pages        = {{4805--4814}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Iron-Based Binary Catalytic System for the Valorization of CO<sub>2</sub> into Biobased Cyclic Carbonates}}},
  doi          = {{10.1021/acssuschemeng.6b01092}},
  volume       = {{4}},
  year         = {{2016}},
}

@article{37986,
  author       = {{Schirmer, Marie-Luis and Adomeit, Sven and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{0947-6539}},
  journal      = {{Chemistry - A European Journal}},
  keywords     = {{T2, CSSD}},
  number       = {{7}},
  pages        = {{2458--2465}},
  publisher    = {{Wiley}},
  title        = {{{Novel Base-Free Catalytic Wittig Reaction for the Synthesis of Highly Functionalized Alkenes}}},
  doi          = {{10.1002/chem.201503744}},
  volume       = {{22}},
  year         = {{2016}},
}

@article{37985,
  author       = {{Diebler, Johannes and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{1867-3880}},
  journal      = {{ChemCatChem}},
  keywords     = {{CSSD}},
  number       = {{12}},
  pages        = {{2027--2030}},
  publisher    = {{Wiley}},
  title        = {{{Regio- and Stereoselective Synthesis of Dithiocarbonates under Ambient and Solvent-Free Conditions}}},
  doi          = {{10.1002/cctc.201600242}},
  volume       = {{8}},
  year         = {{2016}},
}

@article{37988,
  author       = {{Desens, Willi and Werner, Thomas}},
  issn         = {{1615-4150}},
  journal      = {{Advanced Synthesis and Catalysis}},
  keywords     = {{T1, CSSD}},
  number       = {{4}},
  pages        = {{622--630}},
  publisher    = {{Wiley}},
  title        = {{{Convergent Activation Concept for CO<sub>2</sub>Fixation in Carbonates}}},
  doi          = {{10.1002/adsc.201500941}},
  volume       = {{358}},
  year         = {{2016}},
}

@article{37996,
  author       = {{Werner, Thomas and Hoffmann, Marcel and Deshmukh, Sunetra}},
  issn         = {{1434-193X}},
  journal      = {{European Journal of Organic Chemistry}},
  keywords     = {{T2, CSSD}},
  number       = {{15}},
  pages        = {{3286--3295}},
  publisher    = {{Wiley}},
  title        = {{{Phospholane-Catalyzed Wittig Reaction}}},
  doi          = {{10.1002/ejoc.201500243}},
  volume       = {{2015}},
  year         = {{2015}},
}

@article{37991,
  abstract     = {{<jats:p>The title compound, C<jats:sub>17</jats:sub>H<jats:sub>18</jats:sub>O<jats:sub>5</jats:sub>, was synthesized by a base-free catalytic Wittig reaction. The molecule consists of a diethyl itaconate unit, which is connected<jats:italic>via</jats:italic>the C=C double bond to a benzofuran moiety. The benzofuran ring system (r.m.s. deviation = 0.007 Å) forms dihedral angles of 79.58 (4) and 12.12 (10)° with the mean planes through the<jats:italic>cis</jats:italic>and<jats:italic>trans</jats:italic>ethoxycarbonyl groups, respectively. An intramolecular C—H...O hydrogen bond involving the O atom of the benzofuran moiety is observed. In the crystal, molecules are linked into ribbons running parallel to the<jats:italic>b</jats:italic>axis by C—H...O hydrogen bonds.</jats:p>}},
  author       = {{Schirmer, Marie-Luis and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{2056-9890}},
  journal      = {{Acta Crystallographica Section E Crystallographic Communications}},
  keywords     = {{T2}},
  number       = {{11}},
  pages        = {{o872--o872}},
  publisher    = {{International Union of Crystallography (IUCr)}},
  title        = {{{Crystal structure of diethyl (<i>E</i>)-2-[(benzofuran-2-yl)methylidene]succinate}}},
  doi          = {{10.1107/s2056989015019313}},
  volume       = {{71}},
  year         = {{2015}},
}

@article{37994,
  author       = {{Hoffmann, Marcel and Deshmukh, Sunetra and Werner, Thomas}},
  issn         = {{1434-193X}},
  journal      = {{European Journal of Organic Chemistry}},
  keywords     = {{T2, CSSD}},
  number       = {{20}},
  pages        = {{4532--4543}},
  publisher    = {{Wiley}},
  title        = {{{Scope and Limitation of the Microwave-Assisted Catalytic Wittig Reaction}}},
  doi          = {{10.1002/ejoc.201500310}},
  volume       = {{2015}},
  year         = {{2015}},
}

@article{37992,
  author       = {{Großeheilmann, Julia and Büttner, Hendrik and Kohrt, Christina and Kragl, Udo and Werner, Thomas}},
  issn         = {{2168-0485}},
  journal      = {{ACS Sustainable Chemistry and Engineering}},
  keywords     = {{T1, T2, CSSD}},
  number       = {{11}},
  pages        = {{2817--2822}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Recycling of Phosphorus-Based Organocatalysts by Organic Solvent Nanofiltration}}},
  doi          = {{10.1021/acssuschemeng.5b00734}},
  volume       = {{3}},
  year         = {{2015}},
}

@article{37993,
  author       = {{Büttner, Hendrik and Steinbauer, Johannes and Werner, Thomas}},
  issn         = {{1864-5631}},
  journal      = {{ChemSusChem}},
  keywords     = {{T1, T2, CSSD}},
  number       = {{16}},
  pages        = {{2655--2669}},
  publisher    = {{Wiley}},
  title        = {{{Synthesis of Cyclic Carbonates from Epoxides and Carbon Dioxide by Using Bifunctional One-Component Phosphorus-Based Organocatalysts}}},
  doi          = {{10.1002/cssc.201500612}},
  volume       = {{8}},
  year         = {{2015}},
}

@article{37997,
  author       = {{Kohrt, Christina and Werner, Thomas}},
  issn         = {{1864-5631}},
  journal      = {{ChemSusChem}},
  keywords     = {{T1, T2, CSSD}},
  number       = {{12}},
  pages        = {{2031--2034}},
  publisher    = {{Wiley}},
  title        = {{{Recyclable Bifunctional Polystyrene and Silica Gel-Supported Organocatalyst for the Coupling of CO<sub>2</sub>with Epoxides}}},
  doi          = {{10.1002/cssc.201500128}},
  volume       = {{8}},
  year         = {{2015}},
}

@article{37990,
  author       = {{Desens, Willi and Kohrt, Christina and Frank, Marcus and Werner, Thomas}},
  issn         = {{1864-5631}},
  journal      = {{ChemSusChem}},
  keywords     = {{T1, T2, CSSD}},
  number       = {{22}},
  pages        = {{3815--3822}},
  publisher    = {{Wiley}},
  title        = {{{Highly Efficient Polymer-Supported Catalytic System for the Valorization of Carbon Dioxide}}},
  doi          = {{10.1002/cssc.201501119}},
  volume       = {{8}},
  year         = {{2015}},
}

@article{37995,
  author       = {{Schirmer, Marie-Luis and Adomeit, Sven and Werner, Thomas}},
  issn         = {{1523-7060}},
  journal      = {{Organic Letters}},
  keywords     = {{T2, CSSD}},
  number       = {{12}},
  pages        = {{3078--3081}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{First Base-Free Catalytic Wittig Reaction}}},
  doi          = {{10.1021/acs.orglett.5b01352}},
  volume       = {{17}},
  year         = {{2015}},
}

@article{37998,
  author       = {{Büttner, Hendrik and Lau, Kornelia and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{1867-3880}},
  journal      = {{ChemCatChem}},
  keywords     = {{T1, CSSD}},
  number       = {{3}},
  pages        = {{459--467}},
  publisher    = {{Wiley}},
  title        = {{{Bifunctional One-Component Catalysts for the Addition of Carbon Dioxide to Epoxides}}},
  doi          = {{10.1002/cctc.201402816}},
  volume       = {{7}},
  year         = {{2015}},
}

@article{38004,
  abstract     = {{<jats:p>In the crystal structure of the title salt, C<jats:sub>2</jats:sub>H<jats:sub>8</jats:sub>NO<jats:sup>+</jats:sup>·I<jats:sup>−</jats:sup>, N—H...O, N—H...I and O—H...I hydrogen bonds lead to the formation of layers staggered along the<jats:italic>c</jats:italic>axis.</jats:p>}},
  author       = {{Kohrt, Christina and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{1600-5368}},
  journal      = {{Acta Crystallographica Section E Structure Reports Online}},
  keywords     = {{Condensed Matter Physics, General Materials Science, General Chemistry}},
  number       = {{6}},
  pages        = {{o628--o628}},
  publisher    = {{International Union of Crystallography (IUCr)}},
  title        = {{{2-Hydroxyethylammonium iodide}}},
  doi          = {{10.1107/s1600536814009581}},
  volume       = {{70}},
  year         = {{2014}},
}

@article{38003,
  author       = {{Werner, Thomas and Bauer, Matthias and Riahi, Abdol Majid and Schramm, Heiko}},
  issn         = {{1434-193X}},
  journal      = {{European Journal of Organic Chemistry}},
  keywords     = {{Organic Chemistry, Physical and Theoretical Chemistry}},
  number       = {{22}},
  pages        = {{4876--4883}},
  publisher    = {{Wiley}},
  title        = {{{A Catalytic System for the Activation of Diorganozinc Reagents}}},
  doi          = {{10.1002/ejoc.201402138}},
  volume       = {{2014}},
  year         = {{2014}},
}

@article{38001,
  author       = {{Werner, Thomas and Hoffmann, Marcel and Deshmukh, Sunetra}},
  issn         = {{1434-193X}},
  journal      = {{European Journal of Organic Chemistry}},
  keywords     = {{T2, CSSD}},
  number       = {{31}},
  pages        = {{6873--6876}},
  publisher    = {{Wiley}},
  title        = {{{First Microwave-Assisted Catalytic Wittig Reaction}}},
  doi          = {{10.1002/ejoc.201403113}},
  volume       = {{2014}},
  year         = {{2014}},
}