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Dissertations / Theses on the topic 'Asymmetric catalysis'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Soni, Rina. "Studies in asymmetric catalysis." Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/45868/.

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Derivatives of enantiomerically pure 1,2-cyclohexanediamine and 1,2- diphenylethanediamine have been synthesised and used as organocatalysts for asymmetric reactions. The derivatives of 1,2-diphenylethanediamine have been employed for C-C, C-N bond formation reactions to determine their efficacy and selectivity. Compound 278 has shown high efficiency and selectivity for addition of aldehydes to DEAD. Novel Ru-metal complexes containing enantiomerically pure N,N-dialkylated-1,2- diamine ligands have been synthesised. Complexes 299 and 302 were used to study asymmetric transfer hydrogenation of

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2

Laing, John Christopher Pettigrew. "Monophosphines in asymmetric catalysis." Thesis, University of Oxford, 1995. http://ora.ox.ac.uk/objects/uuid:c24d74bf-d5f9-4997-9c14-5aa419dfe8ba.

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This thesis described investigations into the synthesis and reactions of chiral monophosphines, in five chapters. Chapter 1 introduces asymmetric catalysis, Chapter 2 and 3 describe the synthesis of enantiomerically pure monophosphine via an oxide and borane route respectively. Chapter 4 describes the organometallic reactions of these monophosphines and Chapter 5 contains experimental details of the reactions. <strong>Chapter 1</strong> describes the importance of chirality and significant asymmetric processes. The literature methods of producing homochiral monophosphines are detailed. <strong

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3

Carter, Christabel Anne. "Asymmetric phase transfer catalysis : towards catalysts with a chiral anion." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399654.

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4

Monti, Chiara. "Development of new catalysts for asymmetric catalysis via combinatorial chemistry." Thesis, University of Sheffield, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398589.

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5

Konrad, Tina Maria. "Chiral phanephos derived catalysts and their application in asymmetric catalysis." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/4499.

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The research presented in this thesis is a project funded by the EU-network of the Marie Curie project NANO-HOST in collaboration with partner institutes. The aims of this network are to develop innovative methods for the preparation, recovery and reuse of single-site, nanostructured catalytic materials, and further on apply them in combination with specifically engineered reactors for a sustainable production process for making high value fine chemicals. One part of this project was to prepare chiral diphosphine ligands and their complexes for currently challenging reactions, such as asymmetr

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6

Maciver, Eleanor E. "Asymmetric electrocyclic reactions." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:17ba3cb0-0c62-406a-bed4-14c410a45918.

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Pericyclic reactions are a class of transformations that comprise sigmatropic rearrangements, group transfer reactions, cycloadditions and electrocyclic reactions. Since Woodward and Hoffmann rationalized the mechanism and stereochemistry of pericyclic reactions they have become powerful synthetic tools. Whilst sigmatropic rearrangements and cycloadditions are cornerstones of contemporary synthetic methodology, many electrocyclic reactions are not fully exploited currently; there are no general methods for the asymmetric catalysis of electrocyclic reactions and as a consequence, opportunities

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7

Allen, Joanne Victoria. "Recent advances in asymmetric catalysis." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/27574.

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CHAPTER ONE reviews the literature, discussing aspects of transition metal mediated asymmetric catalysis in the presence of enantiomerically pure ligands. CHAPTER TWO discusses the asymmetric addition of dialkyl-zinc reagents to aromatic aldehydes. The work presented is particularly concerned with the design and construction of enantiomerically pure oxazoline ligands tethered to alcohols These ligands have proved effective in the acceleration of the alkylation reaction and are able to influence good levels of asymmetric induction in the resultant secondary alcohol products CHAPTER THREE examin

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8

Eaves, Richard. "Recoverable reagents for asymmetric catalysis." Thesis, University of Warwick, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409789.

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9

Harding, Michael. "New concepts in asymmetric catalysis." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284768.

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10

Durrani, Jamie T. "Palladium catalysed asymmetric hydroxy- and alkoxycarbonylation of alkenes." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/6276.

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Palladium catalysed asymmetric hydroxy- and alkoxycarbonylation reactions of alkenes have the potential to deliver valuable chiral carboxylic acid and ester building blocks from cheap feedstocks: alkenes, carbon monoxide and water (alcohols in the case of alkoxycarbonylation). Despite the attractive nature of these reactions, extensive research has so far been unable to produce effective catalysts which are capable of controlling both regio- and enantioselectivity. Building on exciting recent results involving the use of highly enantioselective palladium catalysts derived from Phanephos-type l

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11

Fjellander, Ester. "Self-adaptable catalysts : Importance of flexibility and applications in asymmetric catalysis." Doctoral thesis, KTH, Organisk kemi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12852.

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The topic of this thesis is the design and synthesis of biaryl-based self adaptableligands for asymmetric metal catalysis. The results discussed in papers I-III are covered, together with some unpublished results concerning substrate-adaptable catalysts. A general survey of self-adaptable catalysts is presented first. The second chapter of this thesis starts with a survey of inversion barriers in biphenyl-based ligands and catalysts. Thereafter, the determination of barriers to conformational adaptation in dibenzoazepines and dibenzophosphepines is described. Palladium complexes with a diphosp

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12

Henry, Christopher Edwin. "Phosphine-catalysis of allenoates mechanism, heterocycle synthesis, and asymmetric catalysis /." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1779690221&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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13

Belda, de Lama Oscar. "Bispyridylamides as ligands in asymmetric catalysis." Doctoral thesis, KTH, Chemistry, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3764.

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<p>This thesis deals with the preparation and use of chiralbispyridylamides as ligands in metal-catalyzed asymmetricreactions.</p><p>The compounds were prepared by amide formation usingdifferent coupling reagents. Bispyridylamides havingsubstituents in the 4- or 6- positions of the pyridine ringswere prepared by functional group interconversion of the 4- or6- halopyridine derivatives. These synthetic approaches provedto be useful for various types of chiral backbones. Pseudo C<sub>2</sub>-symmetric bispyridylamides were also synthesizedby means of stepwise amide formation.</p><p>The compounds

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14

Emmerson, Daniel P. G. "Carbohydrate-derived ligands for asymmetric catalysis." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427869.

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15

Lund, Andrew. "Sulphoxides as ligands for asymmetric catalysis." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.484294.

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16

Carey, Joseph Vincent. "New bisphosphine ligands for asymmetric catalysis." Thesis, University of Oxford, 1991. http://ora.ox.ac.uk/objects/uuid:c1261e8d-baf4-476a-8954-f943588e1579.

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The success of homogeneous asymmetric catalysis has been attributed to the structure and stereochemistry of the coordinated ligand(s). The most effective ligands are C<sub>2</sub>-symmetrical bisphosphines containing either a rigid chiral backbone linking two PPh<sub>2</sub> units or a bisphosphine, DIPAMP containing two chiral phosphine units linked by an achiral backbone. The synthesis of P-chiral ligands of this type has been severely hindered by the lack of a general synthetic route allowing the incorporation of phosphorus chirality without the need for separation of diastereomeric precurs

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17

Pernazza, Daniele. "New chiral ligands for asymmetric catalysis." Thesis, University of Glasgow, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269501.

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18

Lockhart, Stephen Crawford. "Carbenes and binaphthyls in asymmetric catalysis." Thesis, University of Glasgow, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440333.

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19

Gould, Eoin. "Pyrazolidinones as templates in asymmetric catalysis." Thesis, University of St Andrews, 2012. http://hdl.handle.net/10023/3646.

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This thesis principally focuses on the development of a novel series of asymmetric iminium ion organocatalysts, based on the pyrazolidin-3-one template. Also described is the development of a novel asymmetric Steglich rearrangement with pyrazolyl carbonates. The pyrazolidin-3-one framework has been identified as a potentially effective new scaffold for iminium ion organocatalysis. The development of a synthetic route to racemic pyrazolidinone catalysts is outlined which allows for systematic variation of key substituents. The influence of these groups on reactivity and diastereoselectivity in

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20

Resouly, Sarah. "New tripodal ligands for asymmetric catalysis." Thesis, University of Edinburgh, 2003. http://hdl.handle.net/1842/11300.

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21

Frost, Christopher Gregory. "Novel enantiopure ligands for asymmetric catalysis." Thesis, Loughborough University, 1994. https://dspace.lboro.ac.uk/2134/33263.

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The scope of the palladium catalysed allylic substitution reaction is reviewed with particular reference to stereocontrol. The use of enantiopure oxazolines and acetals in asymmetric synthesis is briefly outlined. The work presented is concerned with the design and construction of enantiopure ligands which are able to impart very high levels of enantioselectivity in the aforementioned palladium-catalysed allylic substitution reaction. The ligands exploit the stereochemistry-controlling properties of the oxazoline moiety, whilst incorporating a secondary donor atom. The ligands rely upon an ele

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22

Mitsui, Kazuhiko. "Dendritic Effects in Homogeneous Asymmetric Catalysis." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1245200227.

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23

Sesay, Simon J. "Asymmetric catalysis using titanium and palladium." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/11076.

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This thesis describes, in detail, the synthesis of novel heterobidentate ligands. These ligands were subsequently used in palladium catalysed allylic substitution reactions to synthesise enantiomerically enriched alkylated products. The thesis also describes novel approaches to asymmetric catalysis, in particular asymmetric epoxidation derived from Katsuki-Sharpless methodology. Chapter 1 - This chapter reviews the literature, discussing the significant synthetic advancements in asymmetric catalysis in the past 10-15 years. Chapter 2 - This chapter describes in detail the synthesis of new hete

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24

Clarke, Matthew Lee. "Asymmetric catalysis using novel platinum complexes." Thesis, University of Bath, 1999. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299846.

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25

Moreau, Christelle. "Chiral nitrogen ligands in asymmetric catalysis." Thesis, University of Bath, 2000. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341159.

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26

Wu, Huafeng. "Design and synthesis of novel chiral arsines for asymmetric wittig reactions and Pd-catalyzed asymmetric allylic alkylation and asymmetric heck reactions /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202004%20WU.

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27

Alza, Barrios Esther. "Approaches to asymmetric catalysis with polymer-supported pyrrolidines." Doctoral thesis, Universitat Rovira i Virgili, 2011. http://hdl.handle.net/10803/37362.

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El presente proyecto de investigación se centra en la inmovilización de sistemas catalíticos derivados de pirrolidinas sobre polímeros entrecruzados de PS que permiten realizar enantioselectivamente la formación de enlaces carbono-carbono y carbono-heteroátomo a través de procedimientos con las características de mejora de la sostenibilidad en procesos organocatalíticos altamente eficientes vía mecanismos tipo enamina e ión iminio así como reacciones en cascada así como su aplicación en condiciones de flujo continuo. También se describen ligandos quirales para la reducción asimétrica d

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28

Chen, Gang. "Synthesis of fluorinated BINOL ligands and asymmetric catalysis with its derived catalysts." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ58758.pdf.

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29

Latham, Christopher Michael. "Synthesis of novel asymmetric imidazolinium libraries and applications in asymmetric catalysis." Thesis, University of Nottingham, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713702.

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This thesis is comprised of six chapters describing imidazolinium and imidazolium salts and their conversion into nitrogen heterocyclic carbenes (NHCs) for use in asymmetric catalysis. It is structured thus: Chapter one provides an introduction to imidazolium and imidazolinium salts, their discovery and uses; an introduction to carbenes and NHCs, discovery and utilisation with an emphasis on those NHCs derived from imidazolinium salts. Additionally, retro synthetic approaches to NHCs, imidazolium and imidazolinium salts are overviewed. Chapter two describes the synthesis of imidazolinium salts

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30

Bremberg, Ulf. "Asymmetric catalysis : ligand design and microwave acceleration." Doctoral thesis, KTH, Chemistry, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2962.

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<p>This thesis deals partly with the design and synthesis ofligands for use in asymmetric catalysis, and partly with theapplication of microwave heating on metal-based asymmetriccatalytic reactions.</p><p>Enantiomerically pure pyridyl alcohols and bipyridylalcohols were synthesized from the chiral pool for future usein asymmetric catalysis. Lithiated pyridines were reacted withseveral chiral electrophiles, yielding diastereomeric mixturesthat could be separated without the use of resolutiontechniques.</p><p>New pyridino- and quinolinooxazolines were synthesized andtested in palladium-catalyzed

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31

Hallman, Kristina. "Asymmetric Catalysis : Ligand Design and Conformational Studies." Doctoral thesis, KTH, Chemistry, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3275.

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<p>This thesis deals with the design of ligands for efficientasymmetric catalysis and studies of the conformation of theligands in the catalytically active complexes. All ligandsdeveloped contain chiral oxazoline heterocycles.</p><p>The conformations of hydroxy- and methoxy-substitutedpyridinooxazolines and bis(oxazolines) during Pd-catalysedallylic alkylations were investigated using crystallography,2D-NMR techniques and DFT calculations. A stabilising OH-Pdinteraction was discovered which might explain the differencein reactivity between the hydroxy- and methoxy-containingligands. The confor

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32

Frölander, Anders. "Impact of Secondary Interactions in Asymmetric Catalysis." Doctoral thesis, KTH, Organisk kemi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4380.

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This thesis deals with secondary interactions in asymmetric catalysis and their impact on the outcome of catalytic reactions. The first part revolves around the metal-catalyzed asymmetric allylic alkylation reaction and how interactions within the catalyst affect the stereochemistry. An OH–Pd hydrogen bond in Pd(0)–π-olefin complexes of hydroxy-containing oxazoline ligands was identified by density functional theory computations and helped to rationalize the contrasting results obtained employing hydroxy- and methoxy-containing ligands in the catalytic reaction. This type of hydrogen bond was

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33

Vanitcha, Avassaya. "New ligands for asymmetric catalysis from allenes." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066714/document.

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Ce travail de thèse décrit la synthèse de nouveaux ligands chiraux pour des applications en catalyse asymétrique. Nous avons ainsi synthétisé différents allènes chiraux possédant des groupements phosphines et nous les avons testés sur des métaux de transition comme l'or(I). Les allènes possédant des oxydes de phosphine ont été préparés à partir de précurseurs de l'acétate propargylique correspondant avec des rendements modérés à élevés. Nous avons pu montrer que les allènes possédant un motif pyridine se coordinent efficacement avec de l'or(I), donnant deux nouveaux types de complexes d'or vin

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34

Frölander, Anders. "Impact of secondary interactions in asymmetric catalysis /." Stockholm : Kemi Chemistry, Kungliga Teniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4380.

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35

Ruda, Antonio M. "New approaches to metal free asymmetric catalysis." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/55697/.

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This thesis embraces three main sections: the development of new molecular scaffolds for the organocatalytic Diels-Alder reaction, extension of the studies upon the a-effect and ji-stacking interactions to acyl-ammonium catalysis and development of novel molecular structures for the aminocatalysed Baylis-Hillman reaction. Chapter 1 describes some of the recent advances made in metal-free asymmetric catalysis and sets the work involved within this thesis into context. Chapter 2 describes the investigation of the a-effect and the modulation of face-face ji-jt interactions as a platform for the d

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36

Davis, Amber Verity. "Asymmetric complexes for phospho-aldol (PA) catalysis." Thesis, University of Leeds, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421437.

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37

Cubbon, Rachel Jane. "Novel nitrogen-phosphorus ligands for asymmetric catalysis." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310817.

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38

Norton, Helen Clare. "Functionalised 2-substituted imidazoles in asymmetric catalysis." Thesis, University of Sheffield, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427178.

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39

Maddocks, Suzanne. "Novel polymer supported reagents for asymmetric catalysis." Thesis, Loughborough University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274897.

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40

Ready, Christopher. "New N-donor ligands for asymmetric catalysis." Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.642050.

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Faster, cleaner, cheaper, better processes for industrially relevant chemicals is at the forefront of many areas of chemical research. The development of selective catalysts is important in many fields, classically; pharmaceutical chemistry and drug development, agricultural chemistry and biological activity, cosmetic chemistry and specific fragrances. But, selective catalysis is also important in many other areas including polymerisation and the fine tuning of a polystyrene, and of growing environmental importance; biodegradable and biocompatible plastics from sustainable sources. The former

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41

Sian, Sudipinder K. "Nickel catalysis of asymmetric conjugate addition reactions." Thesis, University of Manchester, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682190.

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The potential for inducing chirality upon 1,4-conjugate addition to alpha/beta unsaturated carbonyls has captivated the interest of many chemists for over 20 years. Metals such as copper, cobalt and nickel have been used as the catalytically active metal centres in these enantioselective reactions. The work presented in this thesis describes the development of a new nickel catalysed system, the attempts at employing it on a range of substrates and ultimately making the chemistry stereoselective. The Introduction reviews metal-mediated syntheses popularly used in organic reactions. Emphasis is

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42

Hacihasanoglu, Antoine. "Biomimetic asymmetric catalysis with bioinspired helical foldamers." Thesis, Bordeaux, 2022. http://www.theses.fr/2022BORD0166.

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L’organocatalyse est une méthodologie qui connait un développement rapide, permettant de réaliser des transformations chimiques complexes dans le contexte général de la chimie durable (procédés sans métaux, recyclage des catalyseurs…). Les applications potentielles incluent l'élaboration rapide d'éléments de base avancés et utiles pour le développement pharmaceutique. Malgré de grandes réalisations, les organocatalyseurs souffrent généralement de certaines limitations comme une faible accélération de la réaction, d'un taux de rotation catalytique faible et de la nécessité de quantités importan

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43

Tong, Ka Pui. "Design of new ligands for asymmetric catalysis /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202003%20TONG.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003.<br>Includes bibliographical references (leaves 107-111). Also available in electronic version. Access restricted to campus users.

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44

Ros, Ñíguez Diego. "Deep Eutectic Solvents: platform for asymmetric catalysis." Doctoral thesis, Universidad de Alicante, 2019. http://hdl.handle.net/10045/99567.

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Capítulo 1. Adiciones Michael asimétricas organocatalizadas en líquidos eutécticos. Siguiendo los principios de la “Química Verde” se desarrolló un sistema catalítico basado en disolventes eutécticos y organocatalizadores quirales derivados de 2-amino benzimidazol. Este nuevo sistema fue empleado para catalizar la adición enantioselectiva de compuestos de 1,3-dicarbonílicos a β-nitroestirenos. El procedimiento evita el uso de disolventes orgánicos volátiles tóxicos como medio reacción, proporcionando acceso a moléculas quirales altamente funcionalizadas de forma selectiva y eficiente. Además,

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45

Spalluto, P. "novel chiral chelating diphosphines for asymmetric catalysis." Doctoral thesis, Università degli Studi di Milano, 2008. http://hdl.handle.net/2434/61060.

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46

Pandey, P. S. "Studies in asymmetric catalysis for hydroformylation reactions." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2012. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2403.

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47

Hu, Liangjian. "Asymmetric electrocatalysis." Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPASF009.

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Cette thèse porte sur la conception et l'étude de réactions d'électroréduction asymétrique pour le couplage croisé de réactifs électrophiles. L'objectif est d'élargir le paradigme des transformations asymétriques efficaces et hautement sélectives dans le domaine de l'électrocatalyse. Les recherches s'articulent autour de trois axes principaux :Premièrement, nous avons exploré la réaction de carboxylation des halogénures de benzyle avec le dioxyde de carbone par électrocatalyse asymétrique. Dans ce cadre, des catalyseurs chiraux ont été choisis, certains d'entre eux synthétisés, et le mécanisme

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48

Payne, Daniel Tony. "Synthesis of asymmetric DMAP derivatives and their applications in asymmetric catalysis and sensing." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7459/.

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A library of novel chiral DMAP derivatives were synthesised from 4-chloropyridine and 3,5-dibromo-4-chloropyridine to give a diverse range of DMAP derivatives focusing on modifications at the 3-position and 3,5-positions of pyridine in DMAP. Characteristics were included in the catalyst design to allow for the formation of intramolecular cation-π interactions, which were studied with fluorescence spectroscopy. In order to achieve the desired catalyst structure, methodology was developed to allow for the facile syntheses of a diverse range of hydrocinnamaldehydes, which were subsequently used i

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49

Fang, Weizhen. "Asymmetric Hydroalkylation of Unactivated Olefins." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112269.

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La catalyse homogène à l’or a longtemps été sous-estimée. Cela a changé au début du 21ème lorsque la communauté des chimistes a reconsidéré les nombreuses singularités que ce métal peut apporter. De nos jours, plus d’une centaine de groupe de recherche mondialement reconnus a permis d’élargir les domaines d’applications de ce précieux métal. De nombreuses avancées ont été réalisées, mais à ce jour très peu sont utilisées à grande échelle et la fréquence de turnover est souvent faible. Ces problèmes sont souvent liés à la rapide dégradation des espèces actives d’or cationiques. Ce manuscrit exp

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50

Giungi, Alessandro. "Synergistic catalysis in asymmetric synthesis of polysubstituted pyrrolidines." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16157/.

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This thesis deals with the feasibility of synthesizing stereodefined polysubstituted pyrrolidines in a formal [3+2] cycloaddition, starting with vinylciclopropanes (also called VCP) with two geminal electron-withdrawing groups (EWG), employed to make formal 1,3-dipole, and imines, used as dipolarophiles. This synthesis is based on the so called synergistic catalysis, that could be described as the combination of two catalytic species, each one able to activate one reaction partner. The former catalyst is a palladium complex, capable of activating the VCP by forming the aforementioned 1,3-dipol

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