Relevant bibliographies by topics / Azomethine imine

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters

Academic literature on the topic 'Azomethine imine'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Azomethine imine"

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Svete, Jurij, Uroš Grošelj, Franc Požgan, and Bogdan Štefane. "Copper-Catalyzed Azomethine Imine–Alkyne Cycloadditions (CuAIAC)." Synthesis 50, no. 23 (October 5, 2018): 4501–24. http://dx.doi.org/10.1055/s-0037-1610284.

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Although the first example of copper-catalyzed azomethine imine–alkyne cycloaddition (CuAIAC) was published only a year after the seminal papers of Meldal and Sharpless on Cu-catalyzed azide–alkyne cycloaddition (CuAAC), the CuAIAC reaction has remained overlooked by the synthetic community for almost a decade. Since 2010, however, CuAIAC reaction started to emerge as a promising supplement to the well-known CuAAC reaction. The present review surveys primarily the literature on CuAIAC reaction since 2003. Beside this, azomethine imine–alkyne cycloadditions catalyzed by other metals, selected examples of metal-free reactions, and related [3+3] and [3+4] cycloadditions of azomethine imines are presented. All these experimental data indicate the viability of CuAIAC in organic synthesis and the applicability in ‘click’ chemistry.1 Introduction2 Reactions with Acyclic Azomethine Imines3 Reactions with C,N-Cyclic Azomethine Imines4 Reactions with N,N-Cyclic Azomethine Imines5 Reactions with C,N,N-Cyclic Azomethine Imines6 The Mechanism of the CuAIAC Reaction7 Conclusions and Outlook
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Sikervar, Vikas, Ravindra Sonawane, Raghuramaiah Mandadapu, Amol Satish Dehade, Shrikant Abhiman Shete, and Mark Montgomery. "Lewis Acid Mediated [3+2] and [3+3] Annulations of an Azomethine Imine with Donor–Acceptor Cyclopropanes." Synthesis 53, no. 16 (May 10, 2021): 2865–73. http://dx.doi.org/10.1055/a-1503-8068.

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AbstractTwo different Lewis acids were used for developing [3+2] and [3+3] regioselective cycloaddition reactions of an azomethine imine with activated cyclopropanes. Scandium(III) triflate catalyzes a [3+2] cycloaddition reaction of the azomethine imine with cyclopropanes to form tetrahydropyrazolone derivatives and tricyclic tetrahydrofuran derivatives in moderate yields. Complementary to this, a novel [3+3] cycloaddition reaction of the azomethine imine with activated cyclopropanes was developed by using EtAlCl2 as a Lewis acid to form hexahydropyridazinone derivatives in high regioselectivity.
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Kashinath, Dhurke, Kota Sathish, and Sakkani Nagaraju. "Synthesis of Spiro Pyrazolone-Oxindole and Bicyclic Pyrazolone Derivatives via Solvent-Dependent Regioselective Aza-1,4/1,6-Michael and Intramolecular Cycloaddition under Catalyst-Free Conditions." SynOpen 05, no. 02 (April 13, 2021): 123–33. http://dx.doi.org/10.1055/a-1480-9837.

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AbstractA solvent-dependent, highly regioselective [3+2]-cyclo­addition reaction of isoxazole-styrenes and azomethine imines under catalyst-free conditions is reported, furnishing a library of pyrazolone–spirooxindole hybrids. Good regioselectivity for the isomeric structures was achieved by the reaction of isoxazole-styrene and azomethine imine in different solvents and temperatures. The developed method was extended for the synthesis of tri-substituted dinitrogen-fused pyrazolones by using a 1,6-Michael addition reaction. Furthermore, the isoxazole moiety was converted into a carboxylic acid as a model study via ring opening.
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Li, Yan, and Zhiqiang Zhang. "Mechanisms of phosphine-catalyzed [3+3] cycloaddition of ynones and azomethine imines: a DFT study." New Journal of Chemistry 43, no. 34 (2019): 13600–13607. http://dx.doi.org/10.1039/c9nj01943j.

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Zhang, Xueyun, Zisong Qi, Jian Gao, and Xingwei Li. "Rhodium(iii)-catalyzed C–H alkynylation of azomethine ylides under mild conditions." Org. Biomol. Chem. 12, no. 46 (2014): 9329–32. http://dx.doi.org/10.1039/c4ob01596g.

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Hu, Shihe, Jian Zhang, and Qiaomei Jin. "DMAP-catalyzed alkylation of isatin N,N′-cyclic azomethine imine 1,3-dipoles with Morita–Baylis–Hillman carbonates." New Journal of Chemistry 42, no. 9 (2018): 7025–29. http://dx.doi.org/10.1039/c8nj00234g.

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Ansari, Arshad J., Aabid Abdullah Wani, Antim K. Maurya, Sarika Verma, Vijai K. Agnihotri, Ashoke Sharon, Prasad V. Bharatam, and Devesh M. Sawant. "An unprecedented N- to C-sulfonyl migration in the reaction of azomethine amine and allenoates: access to arylsulfonylmethyl substituted pyrazolo[1,5-c]quinazoline and mechanistic studies." Chemical Communications 55, no. 98 (2019): 14825–28. http://dx.doi.org/10.1039/c9cc06751e.

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Suga, Hiroyuki, Masahiro Yoshiwara, Takaaki Yamaguchi, Takashi Bando, Mizuki Taguchi, Ayano Inaba, Yuichi Goto, Ayaka Kikuchi, Kennosuke Itoh, and Yasunori Toda. "Enantioselective synthesis of 8-azabicyclo[3.2.1]octanes via asymmetric 1,3-dipolar cycloadditions of cyclic azomethine ylides using a dual catalytic system." Chemical Communications 55, no. 11 (2019): 1552–55. http://dx.doi.org/10.1039/c8cc09224a.

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Inturi, Surendra Babu, Biswajit Kalita, and A. Jafar Ahamed. "I2-TBHP-catalyzed one-pot highly efficient synthesis of 4,3-fused 1,2,4-triazoles from N-tosylhydrazones and aromatic N-heterocycles via intermolecular formal 1,3-dipolar cycloaddition." Organic & Biomolecular Chemistry 14, no. 47 (2016): 11061–64. http://dx.doi.org/10.1039/c6ob01926a.

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Liu, Anan, Dongge Ma, Yuhang Qian, Jundan Li, Shan Zhai, Yi Wang, and Chuncheng Chen. "A powerful azomethine ylide route mediated by TiO2 photocatalysis for the preparation of polysubstituted imidazolidines." Organic & Biomolecular Chemistry 19, no. 10 (2021): 2192–97. http://dx.doi.org/10.1039/d0ob02277b.

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Dissertations / Theses on the topic "Azomethine imine"

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Lavergne, Kaitlyn. "Synthesis of Azomethine Imines via Alkene Aminocarbonylation and their Derivatization into Pyrazolones." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32516.

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Nitrogen-containing heterocyclic compounds are very important to the pharmaceutical and agrochemical industries, among others. Over the past few years, the Beauchemin group has been exploring reactivity of N-substituted isocyanates and as part of this has developed a metal-free alkene aminocarbonylation process relying on imino-isocyanates to form azomethine imines. The azomethine imines formed are interesting since they contain a cyclic β-aminocarbonyl motif. Catalysis of this reaction using basic additives allowed milder reaction conditions with electron-rich C=C bonds such as enol ethers. Efforts have also been made towards the derivatization of these azomethine imines into useful products. It was discovered that upon reduction and aromatization of azomethine imines, pyrazolones could be obtained. This is providing a novel modular approach to these compounds, which have relevance in pharmaceuticals and agrochemicals. This reactivity was extended to include imino-isothiocyanates.
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Hunt, Ashley D. "Intramolecular Cope-type Hydroamination of Alkenes and Alkynes Using Hydrazides." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19881.

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Nitrogen-containing molecules are ubiquitous in both natural products and pharmaceutical drugs, thus an efficient method for the formation of these motifs is of great importance. Hydroamination, that is the addition of an N-H bond across an unsaturated carbon-carbon bond of an alkene or alkyne, stands out as a potential approach to obtain such molecules. To date, most research in this area relies on transition-metal catalysis to enable such reactivity. In efforts directed towards metal-free alternatives, we have developed a simple, metal-free hydroamination of alkenes using hydrazides. Further investigation into the corresponding reactivity of alkynes with hydrazides has provided access to novel azomethine imine products. In Chapter 2, expansion of the substrate scope with respect to the intramolecular hydroamination of alkenes using hydrazides, as well as studies directed towards elucidation of the mechanism of this reaction will be presented. The intramolecular hydroamination of alkynes using hydrazides and methods to access and isolate the azomethine imine products formed will be discussed in Chapter 3.
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Lemire, Philippe. "Hydrolyse d’α-aminoesters et de 1-amino diesters phosphoniques par intramolécularité temporaire organocatalysée & Synthèse de pyrazolones et de triazolium-olates par isomérisation d’azométhine imines N,N’-cycliques." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/38738.

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L’organocatalyse permet l’activation de réactions chimiques diverses et représente une méthode complémentaire à la catalyse métallique ou à la catalyse par les enzymes. Cette stratégie peut être moins toxique et relativement plus accessible, en plus d’être fréquemment économique et écologique. En induisant une intramolécularité temporaire, il est possible de surmonter les pénalités entropiques inhérentes aux réactions intermoléculaires. Les travaux effectués par le groupe de recherche du Pr. Beauchemin ont jusqu’à date permis d’actualiser et d’améliorer des réactions d’hydroamination, d’hydratation d’amino nitriles et d’hydrolyse d’amides organophosphoniques grâce à l’organocatalyse aux aldéhydes simples. Dans cette optique, cette thèse étudie l’application de cette méthodologie dans des réactions d’hydrolyse. Dans un premier temps, les paramètres réactionnels favorisant l’hydrolyse d’α-amino esters furent investigués. Les problèmes de labilité de divers substrats en milieu aqueux furent abordés, de même que les difficultés à effectuer un « turnover » catalytique efficace. Dans un deuxième temps, la mono-hydrolyse de 1-amino diester phosphonique fut étudiée. Les esters d’acide 1-amino phosphoniques suscitent un intérêt en raison de leurs bioactivités diverses, notamment comme analogues d’acides aminés capables d’interactions biologiques avantageuses. Il fut possible d’optimiser plusieurs conditions réactionnelles, de même que d’étendre la portée de cette méthode à la synthèse de dérivés portant des groupements alkyles. Sur un autre ordre d’idées, les hétérocycles azotés font preuve de bioactivités importantes et variées. Conséquemment, leur emploi dans les domaines pharmaceutique et agrochimique est incontournable. Les cycles de type pyrazolone sont particulièrement présents dans des composés pharmaceutiques et dans des insecticides et des herbicides, tandis que les triazolium-olates présentes des activités biologiques intéressantes. Il devient ainsi essentiel de développer des voies polyvalentes, efficaces, peu dispendieuses et plus vertes pour leur synthèse. Des travaux antérieurs du groupe Beauchemin ont élaboré la génération in situ d’isocyanates et d’isothiocyanates N-substitués, des intermédiaires rares dans la littérature. Ils furent utilisés dans des réactions de cycloaddition avec des alcènes et des imines, pour former des azométhine imines. La deuxième partie de cette thèse s’intéresse à la dérivation de ces azométhine imines en dérivés de pyrazolone et en triazolium-olates grâce à une réaction d’isomérisation. Cette approche permet une déconnexion novatrice pour synthétiser directement des hétérocycles riches en azote complexes. L’optimisation de cette réaction fut mise au point et sa portée fut étudiée. Cette méthode s’avère peu dispendieuse, n’emploie aucun catalyseur métallique, ne requière pas de préfonctionnalisation et ne génère pas de sous-produits. Finalement, l’application de cette isomérisation à la résolution cinétique des azométhines imines fut tentée.
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Bongers, Amanda L. "Intermolecular [3+2] Cycloadditions of Imino-isocyanates to Access β-Amino Carbonyl Compounds." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35698.

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In modern synthetic organic chemistry, chemists are driven to develop efficient methods for important C-C and C-N bond formation reactions. The challenge lies with establishing new uses for readily available substrates. In this regard, the synthesis of β-aminocarbonyl compounds from alkenes remains a long-standing challenge. Innovation in reaction discovery often requires finding new reagents, or rare reagents with underappreciated value in synthesis. In Chapter 1, N-isocyanates and other heterocumulenes are introduced as versatile amphoteric reagents. Their amphoteric properties are valuable in the discovery of new synthetic approaches, especially in cycloaddition reactions. While C-isocyanates are bulk industrial chemicals, the formation and reactivity of N-isocyanates remains underexplored. Chapter 2 describes the development of reactivity with rare imino-isocyanates. This includes methods to access the reagent in situ with a blocking group approach, and the establishment of intermolecular cycloaddition reactivity with a variety of alkenes. This stereospecific reaction provides complex N,N’-cyclic azomethine imines, and enables access to β-aminocarbonyl compounds from alkenes. β-Amino amides and esters, pyrazolidinones, and pyrazolones were accessed by reductive derivatization of the aminocarbonylation products. Exploration into the limits of this reactivity gave insight into fundamental properties of imino-isocyanates. This includes the first detection of imino-isocyanates by IR spectroscopy. A kinetic resolution of the azomethine imines obtained from this alkene aminocarbonylation reaction was then developed, which gave access to enantioenriched β-amino carbonyl compounds (Chapter 3). This was accomplished by Brønsted acid catalysed reduction, with a selectivity factor of 13-43. This was the first example of the enantioselective reduction of azomethine imines, and represents a new activation mode for reactions of N,N’-cyclic azomethine imines. Using this reductive method, both enantiomers of the β-amino amide could be obtained from a racemic azomethine imine in ≥ 97% ee. The discovery of new reactivity of imino-isocyanates with imines in described in Chapter 4, which allowed the synthesis of eight new azomethine imines with the triazolone core. Our initial scope studies revealed different trends with imines than with alkenes, including increased reactivity, which led to investigation of the mechanism of this reaction. In addition, this was shown to be a valuable new approach for the synthesis of triazolones from imines.
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Garbay, Guillaume. "Nouvelles voies de synthèse sans métaux d'oligomères et de polymères π-conjugués pour l'électronique organique." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0240/document.

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Dans cette thèse sont développées les synthèses et caractérisations de nouveaux polymères conjugués pour des applications dans l’électronique organique. Ces polymères ont été synthétisés via des réactions de polymérisation sans utilisation de métaux de transition. Des polyazomethines à base de carbazole ont ainsi été synthétisés par polycondensation entre des carbazole portant des fonctions amine et aldéhyde en positions 2,7 et 3,6. Leurs propriétés optiques et électroniques ont été étudiées en fonction de la position des fonctions imines ainsi formées. Un comonomère de type EDOT a ensuite été intégré dans le polymère et l’impact de ce comonomère sur les propriétés du copolymère ainsi formé a été étudié.Des polymères à base d’acide squarique et croconique ont ensuite été synthétisés. En faisant varierles conditions de synthèse, les propriétés optoélectroniques ont pu être contrôlées, permettant d’obtenir des composés présentant une émission blanche, qui ont ensuite été intégrés en tant que couche active dans des dispositifs de type OLED.Enfin, des polymères plus originaux ont été étudiés, utilisant des réactions de polymérisation originale, permettant par exemple la formation de benzobisthiazole in situ. D’autres polymères ont été synthétisés en intégrant dans leur chaine des monomères originaux, comme la tetrazine ou la divanilline. Les propriétés optoélectroniques de ces composés ont ensuite été étudiées en vue deleur éventuelle intégration dans des dispositifs
In this work, synthesis and characterizations of new conjugated polymers are described.These polymers, developed for their integration into devices, have been synthesized via transitionmetalfree polymerizations. Carbazole based polyazomethines have been synthesized via polycondensation reactions between di-substituted carbazoles, bearing amino and formyl functionsin positions 3,6 or 2,7. Optical and electronical properties of such polymers have been studieddepending of the linkage position. A comonomer EDOT has then been integrated into the polymer chain, and impact of such insertion has been studied. Squaric and croconic acid base polymers have also been synthesized. By varying polymerization conditions, optoelectronic properties have been tuned, leading to the formation of polymers exhibiting a white emission. These polymers have then been integrated into OLED, as the active layer. Finally, more original polymers have been synthesized, using more original reactions or monomers such as by forming in situ benzobisthiazole. Other polymers integrating more originals monomers, such a tetrazine or divanillin, have been synthesized. Optoelectronic properties of such materials have been studied for the purpose of their integration into devices
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Dhakal, Ram Chandra. "New Approaches To Heterocycle Synthesis: A Greener Route To Structurally Complex Protonated Azomethine Imines, And Their Use In 1,3-Dipolar Cycloadditions." ScholarWorks @ UVM, 2017. http://scholarworks.uvm.edu/graddis/777.

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1-Aza-2-azoniaallene salts are reactive intermediates that undergo [3+2] cycloaddition with many different types of multiple bonds. For the past several years, the Brewer group has studied the reactivity of these intermediates in intramolecular reactions, and have discovered that these cationic heteroallenes can react through a variety of other, mechanistically distinct, pathways to give different classes of nitrogen heterocycles. For example, prior work in the Brewer group revealed that 1-aza-2-azoniaallene salts could react in an intramolecular [4+2] cycloaddition reaction to give protonated azomethine imine salts containing a 1,2,3,4-tetrahydrocinnoline scaffold. Further study of the scope and limitations of this Diels-Alder-like reaction are described herein. These studies primarily focused on how varying the N-aryl ring and alkene substituents affected the reaction. We discovered that in several instances, the metal mediated reaction did not facilitate the cycloaddition very well, so we searched for alternative ways to facilitate the reaction. We discovered that a non-metallic Lewis acid (TMSOTf) provided very clean products with α-chloroazo compounds. I hypothesized that changing the leaving group adjacent to the azo might further improve the reaction. With this in mind, I developed a technique to prepare α-trifluoroacetoxyazo compounds by treating aryl hydrazones with trifluoroacetoxy dimethylsulfonium trifluoroacetate. This technique is compatible with all types of functional groups including nitro aryl compounds, which gave low yields of the corresponding chloroazo derivatives. Importantly, these α-trifluoroacetoxyazo compounds gave even better cycloaddition results when treated with TMSOTf, and this method is more practical, more environmentally friendly, and greener than the metal mediated technique. This process even returned sterically hindered products in high yield, and provide a dearomatized non-protonated azomethine imine salt, which further verified the proposed mechanism of the [4+2] cycloaddition. Azomethine imines are well known to undergo 1,3-dipolar cycloadditions with alkenes. We wondered if the protonated azomethine imine salts generated by the [4+2] cycloaddition could be used in a subsequent base-mediated [3+2] cycloaddition to generate structurally complex tetra- or pentacyclic products. We were pleased to find that the protonated azomethine imines indeed reacted smoothly with a variety of π-system in the presence of triethylamine to give the corresponding cycloadducts in high yields with moderate to high diastereoselectivities. In an attempt to understand the diastereoselectivity of these [3+2] cycloadditions better, I modeled them computationally.
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Betit, Lyanne. "Derivatization of Azomethine Imines into beta-Aminocarbonyl Motifs." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32473.

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β-Aminocarbonyl motifs are a privileged substructures in medicinal chemistry and peptidomimetics. As part of our efforts toward metal free aminations, we developed a method for intermolecular amino-carbonylation of alkenes using hydrazones. This method provides access to cyclic azomethine imines containing a β-aminocarbonyl motif. Conceptually, these dipoles can be derivatized into many bioactive compounds, such as 1,3-diamines, β-amino amides and β-amino acids. The first part of this thesis will present the results on the derivatization of our aminocarbonylation products into various nitrogen-containing molecules, such as β-amino amides, β-amino acids and pyrazolones. More specifically, a short, chromatography-free derivatization of azomethine imines into N-Boc-β-amino amides will be presented. Following these results, the next chapter will focus on attempts at develop novel aminocarbonylation reactivity between 1,2-diacylhydrazines and alkenes followed by results from our reductive N-N bond cleavage experiments on our cyclic hydrazides.
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Omote, Masato. "Development of Asymmetric Syntheses Utilizing C, N-Cyclic Azomethine Imines." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/142393.

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Cayuelas, Rubio Alberto. "Imino esters as precursors of azomethine ylides in 1,3-dipolar cycloaddition and Mannich reactions." Doctoral thesis, Universidad de Alicante, 2016. http://hdl.handle.net/10045/56477.

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Nugent, Benjamin M. "Regio- and stereoselective additions to azomethines free radical cyclizations and chiral Bronsted acid catalyzed reactions of imines /." [Bloomington, Ind.] : Indiana University, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3206873.

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Thesis (Ph. D.)--Indiana University, Dept. of Chemistry, 2006.
Source: Dissertation Abstracts International, Volume: 67-01, Section: B, page: 0275. Adviser: Jeffrey N. Johnston. "Title from dissertation home page (viewed Feb. 22, 2007)."
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Book chapters on the topic "Azomethine imine"

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Suga, Hiroyuki, and Kennosuke Itoh. "Recent Advances in Catalytic Asymmetric 1,3-Dipolar Cycloadditions of Azomethine Imines, Nitrile Oxides, Diazoalkanes, and Carbonyl Ylides." In Methods and Applications of Cycloaddition Reactions in Organic Syntheses, 175–204. Hoboken, New Jersey: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118778173.ch07.

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Schantl, J. G. "Reaction of Diazocyanides with Diaryldiazomethanes; Azomethine Imine Trimerization." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00668.

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Schantl, J. G. "Acyclic Azomethine Imines." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00645.

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Schantl, J. G. "Transformation of Oxo Azomethine Imines into Thioxo Azomethine Imines." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00716.

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Schantl, J. G. "Nonclassical "Criss-Cross" Reaction: [3 + 2] Cycloaddition of Dialkyl and Diphenyl Azodicarboxylates and Diphenylketenes; [3 + 2] Cycloaddition of Resulting Azomethine Imine." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00683.

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"27.19.5 Azomethine Imines (Update 2017)." In Knowledge Updates: 2017/1, edited by Joule, Krause, Oestreich, Rademann, Schaumann, Wirth, Fuerstner, Schaumann, Thomas, and Trost. Stuttgart: Georg Thieme Verlag, 2017. http://dx.doi.org/10.1055/sos-sd-127-00429.

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"Product Class 19: Azomethine Imines." In Category 4. Compounds with Two Carbon Heteroatom Bonds, edited by Padwa and Bellus. Stuttgart: Georg Thieme Verlag, 2005. http://dx.doi.org/10.1055/sos-sd-027-00644.

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Schantl, J. G. "Nonclassical "Criss-Cross" Reaction: [3 + 2] Cycloaddition of Azoalkenes with Thiocyanic Acid; [1,4]- Shift of Resulting Azomethine Imine or [3 + 2] Cycloaddition with Thiocyanic Acid." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00684.

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Schantl, J. G. "Reaction of Hexafluoroacetone Azine with Alkenes or Alkynes To Give an Azomethine Imine (1:1 Cycloadduct) and/or "Criss-Cross" (Heterobicyclic) Product (1:2 Cycloadduct)." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00710.

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Schantl, J. G. "Thermally or Acid-Induced Ring Enlargement of an Azomethine Imine with an Exocyclic Terminal Nitrogen into the Isomer with All Three Atoms in the Ring." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00721.

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