@article{37960,
  author       = {{Stadler, Bernhard M. and Wulf, Christoph and Werner, Thomas and Tin, Sergey and de Vries, Johannes G.}},
  issn         = {{2155-5435}},
  journal      = {{ACS Catalysis}},
  keywords     = {{T4, CSSD}},
  number       = {{9}},
  pages        = {{8012--8067}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Catalytic Approaches to Monomers for Polymers Based on Renewables}}},
  doi          = {{10.1021/acscatal.9b01665}},
  volume       = {{9}},
  year         = {{2019}},
}

@article{37966,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>Numerous organic transformations are based on the use of stoichiometric amounts of phosphorus reagents. The formation of phosphane oxides from phosphanes is usually the thermodynamic driving force for these reactions. The stoichiometric amounts of phosphane oxide which are formed as by-products often significantly hamper the product purification. Organophosphorus catalysis based on P(III)/P(V) redox cycling aims to address these problems. Herein we present our recent advances in developing catalytic Wittig-type reactions. More specifically, we reported our results on catalytic Wittig reactions based on readily available Bu<jats:sub>3</jats:sub>P=O as pre-catalyst as well as the first microwave-assisted version of this reaction and the first enantioselective catalytic Wittig reaction utilizing chiral phosphane catalysts. Further developments led to the implementation of catalytic base-free Wittig reactions yielding highly functionalized alkylidene and arylidene succinates.</jats:p>}},
  author       = {{Longwitz, Lars and Werner, Thomas}},
  issn         = {{1365-3075}},
  journal      = {{Pure and Applied Chemistry}},
  keywords     = {{T2, CSSD}},
  number       = {{1}},
  pages        = {{95--102}},
  publisher    = {{Walter de Gruyter GmbH}},
  title        = {{{Recent advances in catalytic Wittig-type reactions based on P(III)/P(V) redox cycling}}},
  doi          = {{10.1515/pac-2018-0920}},
  volume       = {{91}},
  year         = {{2019}},
}

@article{37965,
  author       = {{Grandane, Aiga and Longwitz, Lars and Roolf, Catrin and Spannenberg, Anke and Murua Escobar, Hugo and Junghanss, Christian and Suna, Edgars and Werner, Thomas}},
  issn         = {{0022-3263}},
  journal      = {{The Journal of Organic Chemistry}},
  keywords     = {{T2, T4, CSSD}},
  number       = {{3}},
  pages        = {{1320--1329}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Intramolecular Base-Free Catalytic Wittig Reaction: Synthesis of Benzoxepinones}}},
  doi          = {{10.1021/acs.joc.8b02789}},
  volume       = {{84}},
  year         = {{2019}},
}

@article{37971,
  author       = {{Straub, Bernd and Andexer, Jennifer N. and Arenz, Christoph and Beifuss, Uwe and Beuerle, Florian and Brasholz, Malte and Breinbauer, Rolf and Ditrich, Klaus and Ernst, Martin and Gulder, Tobias A. M. and Kordes, Markus and Krueger, Anke and Lehmann, Matthias and Lindel, Thomas and Lüdeke, Steffen and Luy, Burkhard and Meier, Michael A. R. and Mück-Lichtenfeld, Christian and Muhle-Goll, Claudia and Narine, Arun and Paradies, Jan and Pfau, Roland and Pietruszka, Jörg and Schaschke, Norbert and Senge, Mathias O. and Werner, Thomas and Werz, Daniel B. and Winter, Christian and Worgull, Dennis}},
  issn         = {{1439-9598}},
  journal      = {{Nachrichten aus der Chemie}},
  keywords     = {{General Chemical Engineering, General Chemistry}},
  number       = {{3}},
  pages        = {{249--280}},
  publisher    = {{Wiley}},
  title        = {{{Trendbericht Organische Chemie 2017}}},
  doi          = {{10.1002/nadc.20184072148}},
  volume       = {{66}},
  year         = {{2018}},
}

@article{37968,
  author       = {{Hu, Yuya and Yin, Zhiping and Werner, Thomas and Spannenberg, Anke and Wu, Xiao-Feng}},
  issn         = {{1434-193X}},
  journal      = {{European Journal of Organic Chemistry}},
  keywords     = {{Organic Chemistry, Physical and Theoretical Chemistry}},
  number       = {{10}},
  pages        = {{1274--1276}},
  publisher    = {{Wiley}},
  title        = {{{1,8-Diazabicyclo[5.4.0]undec-7-ene-Catalyzed Carbonylative Cyclization of Propargylic Alcohols with Elemental Sulfur}}},
  doi          = {{10.1002/ejoc.201701813}},
  volume       = {{2018}},
  year         = {{2018}},
}

@article{37967,
  author       = {{Steinbauer, Johannes and Kubis, Christoph and Ludwig, Ralf and Werner, Thomas}},
  issn         = {{2168-0485}},
  journal      = {{ACS Sustainable Chemistry and Engineering}},
  keywords     = {{T1, T2, CSSD}},
  number       = {{8}},
  pages        = {{10778--10788}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Mechanistic Study on the Addition of CO<sub>2</sub> to Epoxides Catalyzed by Ammonium and Phosphonium Salts: A Combined Spectroscopic and Kinetic Approach}}},
  doi          = {{10.1021/acssuschemeng.8b02093}},
  volume       = {{6}},
  year         = {{2018}},
}

@article{37969,
  abstract     = {{<p>Simple zinc organyls (R<sub>2</sub>Zn) efficiently catalyze the copolymerization of CO<sub>2</sub> and cyclohexene oxide. The effect of various reaction parameters has been studied. The reaction proceeds under halogen-free conditions and no co-catalyst is required.</p>}},
  author       = {{Wulf, Christoph and Doering, Ulrike and Werner, Thomas}},
  issn         = {{2046-2069}},
  journal      = {{RSC Advances}},
  keywords     = {{T1, T3, CSSD}},
  number       = {{7}},
  pages        = {{3673--3679}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Copolymerization of CO<sub>2</sub> and epoxides mediated by zinc organyls}}},
  doi          = {{10.1039/c7ra12535f}},
  volume       = {{8}},
  year         = {{2018}},
}

@article{62105,
  author       = {{Longwitz, Lars and Steinbauer, Johannes and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{2155-5435}},
  journal      = {{ACS Catalysis}},
  keywords     = {{T1, T3, T4, CSSD}},
  number       = {{1}},
  pages        = {{665--672}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Calcium-Based Catalytic System for the Synthesis of Bio-Derived Cyclic Carbonates under Mild Conditions}}},
  doi          = {{10.1021/acscatal.7b03367}},
  volume       = {{8}},
  year         = {{2018}},
}

@article{37970,
  author       = {{Longwitz, Lars and Steinbauer, Johannes and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{2155-5435}},
  journal      = {{ACS Catalysis}},
  keywords     = {{T1, T3, T4}},
  number       = {{1}},
  pages        = {{665--672}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Calcium-Based Catalytic System for the Synthesis of Bio-Derived Cyclic Carbonates under Mild Conditions}}},
  doi          = {{10.1021/acscatal.7b03367}},
  volume       = {{8}},
  year         = {{2017}},
}

@article{37979,
  author       = {{Straub, Bernd F. and Andexer, Jennifer and Arenz, Christoph and Beifuss, Uwe and Beuerle, Florian and Brasholz, Malte and Breinbauer, Rolf and Ditrich, Klaus and Gulder, Tobias A. M. and Hüttel, Wolfgang and Kordes, Markus and Krueger, Anke and Lehmann, Matthias and Lindel, Thomas and Luy, Burkhard and Meier, Michael A. R. and Mück-Lichtenfeld, Christian and Muhle-Goll, Claudia and Müller, Thomas J. J. and Narine, Arun and Paradies, Jan and Pfau, Roland and Pietruszka, Jörg and Schaschke, Norbert and Senge, Mathias O. and Werner, Thomas and Werz, Daniel B. and Winter, Christian A. and Worgull, Dennis}},
  issn         = {{1439-9598}},
  journal      = {{Nachrichten aus der Chemie}},
  keywords     = {{General Chemical Engineering, General Chemistry}},
  number       = {{3}},
  pages        = {{266--304}},
  publisher    = {{Wiley}},
  title        = {{{Organische Chemie 2016}}},
  doi          = {{10.1002/nadc.20174059831}},
  volume       = {{65}},
  year         = {{2017}},
}

@article{37976,
  author       = {{Li, Wu and Werner, Thomas}},
  issn         = {{1523-7060}},
  journal      = {{Organic Letters}},
  keywords     = {{CSSD}},
  number       = {{10}},
  pages        = {{2568--2571}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{B(C6F5)3-Catalyzed Michael Reactions: Aromatic C–H as Nucleophiles}}},
  doi          = {{10.1021/acs.orglett.7b00720}},
  volume       = {{19}},
  year         = {{2017}},
}

@article{37973,
  abstract     = {{<p>An immobilized bifunctional phosphonium salt catalyst efficiently catalyzed the synthesis of cyclic carbonates under mild conditions, and was reused up to 15 times.</p>}},
  author       = {{Steinbauer, J. and Longwitz, L. and Frank, M. and Epping, J. and Kragl, U. and Werner, Thomas}},
  issn         = {{1463-9262}},
  journal      = {{Green Chemistry}},
  keywords     = {{T1, T2, CSSD}},
  number       = {{18}},
  pages        = {{4435--4445}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Immobilized bifunctional phosphonium salts as recyclable organocatalysts in the cycloaddition of CO<sub>2</sub> and epoxides}}},
  doi          = {{10.1039/c7gc01782k}},
  volume       = {{19}},
  year         = {{2017}},
}

@article{37975,
  abstract     = {{<p>Calcium punched beyond its weight: An <italic>in situ</italic> formed Ca<sup>2+</sup>–crown ether complex showed unprecedented efficiency in cyclic carbonate synthesis.</p>}},
  author       = {{Steinbauer, J. and Spannenberg, A. and Werner, Thomas}},
  issn         = {{1463-9262}},
  journal      = {{Green Chemistry}},
  keywords     = {{T1, T3, CSSD}},
  number       = {{16}},
  pages        = {{3769--3779}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{An in situ formed Ca<sup>2+</sup>–crown ether complex and its use in CO<sub>2</sub>-fixation reactions with terminal and internal epoxides}}},
  doi          = {{10.1039/c7gc01114h}},
  volume       = {{19}},
  year         = {{2017}},
}

@article{37977,
  author       = {{Büttner, Hendrik and Longwitz, Lars and Steinbauer, Johannes and Wulf, Christoph and Werner, Thomas}},
  issn         = {{2365-0869}},
  journal      = {{Topics in Current Chemistry}},
  keywords     = {{T1, CSSD}},
  number       = {{3}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Recent Developments in the Synthesis of Cyclic Carbonates from Epoxides and CO2}}},
  doi          = {{10.1007/s41061-017-0136-5}},
  volume       = {{375}},
  year         = {{2017}},
}

@article{37972,
  author       = {{Li, Wu and Wang, Ming-Ming and Hu, Yuya and Werner, Thomas}},
  issn         = {{1523-7060}},
  journal      = {{Organic Letters}},
  keywords     = {{CSSD}},
  number       = {{21}},
  pages        = {{5768--5771}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>-Catalyzed Regioselective Deuteration of Electron-Rich Aromatic and Heteroaromatic Compounds}}},
  doi          = {{10.1021/acs.orglett.7b02701}},
  volume       = {{19}},
  year         = {{2017}},
}

@article{37978,
  author       = {{Büttner, Hendrik and Steinbauer, Johannes and Wulf, Christoph and Dindaroglu, Mehmet and Schmalz, Hans-Günther and Werner, Thomas}},
  issn         = {{1864-5631}},
  journal      = {{ChemSusChem}},
  keywords     = {{T1, T2, CSSD}},
  number       = {{6}},
  pages        = {{1076--1079}},
  publisher    = {{Wiley}},
  title        = {{{Organocatalyzed Synthesis of Oleochemical Carbonates from CO<sub>2</sub>and Renewables}}},
  doi          = {{10.1002/cssc.201601163}},
  volume       = {{10}},
  year         = {{2017}},
}

@article{37974,
  author       = {{Steinbauer, Johannes and Werner, Thomas}},
  issn         = {{1864-5631}},
  journal      = {{ChemSusChem}},
  keywords     = {{T1, T3, CSSD}},
  number       = {{15}},
  pages        = {{3025--3029}},
  publisher    = {{Wiley}},
  title        = {{{Poly(ethylene glycol)s as Ligands in Calcium-Catalyzed Cyclic Carbonate Synthesis}}},
  doi          = {{10.1002/cssc.201700788}},
  volume       = {{10}},
  year         = {{2017}},
}

@article{37983,
  abstract     = {{<p><bold>Taking Control!</bold>The binary catalyst system composed of MoO<sub>3</sub>and an organic phoshponium salt [Bu<sub>4</sub>P]X proved very efficient to produce oleochemical cyclic carbonates from renewables.</p>}},
  author       = {{Tenhumberg, Nils and Büttner, Hendrik and Schäffner, Benjamin and Kruse, Daniela and Blumenstein, Michael and Werner, Thomas}},
  issn         = {{1463-9262}},
  journal      = {{Green Chemistry}},
  keywords     = {{T1, T3, CSSD}},
  number       = {{13}},
  pages        = {{3775--3788}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Cooperative catalyst system for the synthesis of oleochemical cyclic carbonates from CO<sub>2</sub>and renewables}}},
  doi          = {{10.1039/c6gc00671j}},
  volume       = {{18}},
  year         = {{2016}},
}

@article{37989,
  author       = {{Schirmer, Marie-Luis and Jopp, Stefan and Holz, Jens and Spannenberg, Anke and Werner, Thomas}},
  issn         = {{1615-4150}},
  journal      = {{Advanced Synthesis and Catalysis}},
  keywords     = {{T2, CSSD}},
  number       = {{1}},
  pages        = {{26--29}},
  publisher    = {{Wiley}},
  title        = {{{Organocatalyzed Reduction of Tertiary Phosphine Oxides}}},
  doi          = {{10.1002/adsc.201500762}},
  volume       = {{358}},
  year         = {{2016}},
}

@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}},
}