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Journal articles on the topic 'Nitrogen Ylides'

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Published: 4 June 2021
Last updated: 3 February 2022

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1

Jiang, Kun, and Ying-Chun Chen. "Organocatalytic reactions involving nitrogen-ylides." Tetrahedron Letters 55, no. 13 (March 2014): 2049–55. http://dx.doi.org/10.1016/j.tetlet.2014.02.036.

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2

Voltrova, Svatava, and Jiri Srogl. "Reaction of Thiolesters with Nitrogen Ylides." European Journal of Organic Chemistry 2008, no. 10 (April 2008): 1677–79. http://dx.doi.org/10.1002/ejoc.200701191.

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3

Jiang, Kun, and Ying-Chun Chen. "ChemInform Abstract: Organocatalytic Reactions Involving Nitrogen-Ylides." ChemInform 45, no. 22 (May 15, 2014): no. http://dx.doi.org/10.1002/chin.201422269.

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4

Berger, Reinhard, Manfred Wagner, Xinliang Feng, and Klaus Müllen. "Polycyclic aromatic azomethine ylides: a unique entry to extended polycyclic heteroaromatics." Chemical Science 6, no. 1 (2015): 436–41. http://dx.doi.org/10.1039/c4sc02793k.

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5

Gawley, Robert E., and Kwangyul Moon. "Stereoselective [2,3]-Sigmatropic Rearrangements of Unstabilized Nitrogen Ylides†." Organic Letters 9, no. 16 (August 2007): 3093–96. http://dx.doi.org/10.1021/ol071188v.

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6

Aitken, R. Alan, and Nazira Karodia. "Reaction of Stabilised Phosphorus Ylides with Nitrogen Dioxide." European Journal of Organic Chemistry 1999, no. 1 (January 1999): 251–54. http://dx.doi.org/10.1002/(sici)1099-0690(199901)1999:1<251::aid-ejoc251>3.0.co;2-m.

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7

Abdallah, Tayseer A., and Kamal M. Dawood. "Synthesis of annulated dihydroisoquinoline heterocycles via their nitrogen ylides." Tetrahedron 64, no. 34 (August 2008): 7890–95. http://dx.doi.org/10.1016/j.tet.2008.06.043.

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8

Maslivetc, Vladimir, Colby Barrett, Nicolai A. Aksenov, Marina Rubina, and Michael Rubin. "Intramolecular nucleophilic addition of carbanions generated from N-benzylamides to cyclopropenes." Organic & Biomolecular Chemistry 16, no. 2 (2018): 285–94. http://dx.doi.org/10.1039/c7ob02068f.

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An unusual reaction is described, involving a formal intramolecular nucleophilic substitution of bromocyclopropanes with nitrogen ylides generated in situ from N-benzyl carboxamides. This reaction involves cyclopropene intermediates and allows for the facile preparation of 3-azabicyclo[3.1.0]hexan-2-ones.
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9

Popa, Marcel Mirel, Emilian Georgescu, Mino R. Caira, Florentina Georgescu, Constantin Draghici, Raluca Stan, Calin Deleanu, and Florea Dumitrascu. "Indolizines and pyrrolo[1,2-c]pyrimidines decorated with a pyrimidine and a pyridine unit respectively." Beilstein Journal of Organic Chemistry 11 (June 26, 2015): 1079–88. http://dx.doi.org/10.3762/bjoc.11.121.

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The three possible structural isomers of 4-(pyridyl)pyrimidine were employed for the synthesis of new pyrrolo[1,2-c]pyrimidines and new indolizines, by 1,3-dipolar cycloaddition reaction of their corresponding N-ylides generated in situ from their corresponding cycloimmonium bromides. In the case of 4-(3-pyridyl)pyrimidine and 4-(4-pyridyl)pyrimidine the quaternization reactions occur as expected at the pyridine nitrogen atom leading to pyridinium bromides and consequently to new indolizines via the corresponding pyridinium N-ylides. However, in the case of 4-(2-pyridyl)pyrimidine the steric hindrance directs the reaction to the pyrimidinium N-ylides and, subsequently, to the formation of the pyrrolo[1,2-c]pyrimidines. The new pyrrolo[1,2-c]pyrimidines and the new indolizines were structurally characterized through NMR spectroscopy. The X-ray structures of two of the starting materials, 4-(2-pyridyl)pyrimidine and 4-(4-pyridyl)pyrimidine, are also reported.
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10

Heard, GL, and BF Yates. "Steric and Electronic Effects on the Mechanism of the Stevens Rearrangement—Large Organic Ylides of Unusually High Symmetry." Australian Journal of Chemistry 47, no. 9 (1994): 1685. http://dx.doi.org/10.1071/ch9941685.

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Ab initio molecular orbital theory has been used to study the Stevens rearrangement of trimethylammonium methylide, dimethylammonium formylmethylide and trimethylammonium formylmethylide . For each system, the rearrangement is predicted to proceed via dissociation to two radical species followed by recombination to the appropriate alkylamine . In no case is the concerted pathway competitive. Steric effects are less important than electronic effects in stabilizing the ylides, and the introduction of a carbonyl group lowers the energy barrier towards the ylides is predicted to have rigorous C8 symmetry; this unusual situation is brought about by the nature of the substituents around the positive nitrogen and the planarity of the remaining negative portion of the molecule.
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11

Nájera, Carmen, and José Miguel Sansano. "Synthesis of pyrrolizidines and indolizidines by multicomponent 1,3-dipolar cycloaddition of azomethine ylides." Pure and Applied Chemistry 91, no. 4 (April 24, 2019): 575–96. http://dx.doi.org/10.1515/pac-2018-0710.

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Abstract Different multicomponent 1,3-dipolar cycloadditions (1,3-DC) of cyclic α-amino acid derivatives with aldehydes and dipolarophiles have been described as efficient and simple methodologies for the synthesis of the pyrrolidine unit of pyrrolizidines and indolizidines. When free cyclic α-amino acids are used, a thermal promoted decarboxylative process generates in situ the corresponding non-stabilized azomethine ylides, which afforded the corresponding pyrrolizidines and indolizidines with a hydrogen in the bicyclic units. This methodology has been employed to the synthesis of complex systems including spiro derivatives when ketones are used as carbonyl component. In addition, working with cyclic α-amino acid derived esters, the three-component 1,3-DC takes place under milder reaction conditions giving the corresponding pyrrolizidines and indolizidines with an alkoxycarbonyl group in the bridge adjacent carbon to the nitrogen. This methodology can be carried out by a double consecutive or stepwise 1,3-DC to provide pyrrolizidines via the precursor prolinates. The conformation of the azomethine ylide controls the endo/exo diastereoselectivity of the 1,3-DC.
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12

Weber, Carina, Marco M. Nebe, Lukas P. V. Kaluza, and Till Opatz. "A short synthesis of pyridines from deprotonated α-aminonitriles by an alkylation/RCM sequence." Zeitschrift für Naturforschung B 71, no. 6 (June 1, 2016): 633–41. http://dx.doi.org/10.1515/znb-2016-0005.

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Abstractα-Aminonitriles can serve as versatile key precursors for the synthesis of nitrogen containing heterocycles. After unsuccessful trials involving the [1,2]-Stevens rearrangement of nitrile-stabilized ammonium ylides, we herein report a simple three-step synthesis of substituted pyridines based on an alkylation/ring-closing metathesis/aromatization sequence.
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13

Padwa, Albert. "Use of nitrogen and oxygen dipole ylides for alkaloid synthesis." Arkivoc 2018, no. 4 (February 6, 2018): 23–49. http://dx.doi.org/10.24820/ark.5550190.p010.416.

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14

Aitken, R. Alan, and Nazira Karodia. "ChemInform Abstract: Reaction of Stabilized Phosphorus Ylides with Nitrogen Dioxide." ChemInform 30, no. 21 (June 15, 2010): no. http://dx.doi.org/10.1002/chin.199921050.

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15

Soliman, Fouad, Ibrahim Abd-Ellah, Soher Maigali, and Gamal Abd-El-Naim. "Chemistry of Phosphorus Ylides. Part 27. Metal Complexes of 4-hydroxyquinaldine, its Mannich Base and Phosphonium Ylide." Journal of Chemical Research 2009, no. 5 (May 2009): 277–82. http://dx.doi.org/10.3184/030823409x440841.

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The reaction of Hg2+,Cd2+,Co2+, and Ni2+ ions with 1 mol of the ligands 2-methylquinoline-4-ol,3[(diethylamino)methyl]-2-methylquinoline-4-ol, and methyl-3-(4-hyrdoxy-2-methylquinoline-3-yl)-2-(triphenylphosphoranylidene)propanoate, has been investigated to give the corresponding 1:1 metal:ligand complexes. Reaction of 2 mol of the ligand gave the corresponding 1:2 metal:ligand complexes. The coordination takes place only through the quinoline nitrogen atom. The spectroscopic and the physicochemical data of the new metal complexes are discussed.
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16

Grünefeld, Johann, Wolfgang Kliegel, Steven J. Rettig, and James Trotter. "Reaction of diphenylborinic acid with pyridinium and phosphonium bisacyl methylides. Crystal and molecular structures of resulting B,N- and B,P-betaines." Canadian Journal of Chemistry 77, no. 4 (April 1, 1999): 439–50. http://dx.doi.org/10.1139/v99-067.

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Reaction of pyridinium and phosphonium 2-carboxy-1-formyl-2-oxoethylides with oxybis(diphenylborane) yields 5-(2-oxo-1-(pyridinio or phosphonio)ethylidene)-2,2-diphenyl-1,3-dioxa-2-borata-4-cyclopentanones, which represent novel types of boron nitrogen and boron phosphorus betaines, respectively. Crystals of 5-(2-oxo-1-pyridinioethylidene)-2,2-diphenyl-1,3-dioxa-2-borata-4-cyclopentanone,1a, are monoclinic, a = 15.589(3), b = 12.366(2), c = 20.1869(11) Å, β = 111.227(2)°, Z = 8 (two independent molecules), space group P21/a; and those of 5-[2-oxo-1-(triphenylphosphonio)ethylidene]-2,2-diphenyl-1,3-dioxa-2-borata-4-cyclo-pentanone,11, are monoclinic, a = 9.6922(7), b = 25.027(2), c = 11.3041(4) Å, β= 92.1418(13)°, Z = 4 (two independent molecules), space group P21. The structures were solved by direct methods and refined by full-matrix least-squares procedures to R (F, I [Formula: see text] 3σ(I)) = 0.047 and 0.042 (Rw (F2, all data) = 0.096 and 0.088), respectively, for 1a and 11.Key words: pyridinium ylides, phosphonium ylides, bisacyl methylide diphenylboron chelates, boron nitrogen betaines, boron phosphorus betaines, organoboron compounds, crystal structures.
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17

Lebedyeva, Iryna, Sean Sileno, Kunal Patel, Ion Ghiviriga, Peter Steel, and Alan Katritzky. "Reaction of barbituric acid with organic azides and phosphonium ylides." Open Chemistry 11, no. 6 (June 1, 2013): 1019–22. http://dx.doi.org/10.2478/s11532-013-0233-4.

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AbstractAmination by organic azides has been carried out to provide aminobarbiturates by fusion of a triazole ring to the 5,6-positions of barbituric acid followed by cleavage and thermal elimination of nitrogen, whereas aza-Wittig reaction gave phosphoranylidene barbituric acid salts.
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18

Glaeske, Kevin W., and F. G. West. "Chirality Transfer from Carbon to Nitrogen to Carbon via Cyclic Ammonium Ylides." Organic Letters 1, no. 1 (July 1999): 31–34. http://dx.doi.org/10.1021/ol9905349.

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19

Khlebnikov, A. F., and R. R. Kostikov. "Immonium ylides derived from halocarbenes in the synthesis of nitrogen-containing compounds." Russian Chemical Bulletin 42, no. 4 (April 1993): 603–13. http://dx.doi.org/10.1007/bf00703989.

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20

Kakehi, Akikazu. "Preparation of New Nitrogen-Bridged Heterocycles Using Pyridinium N-Ylides and Pyridinium Salts." Journal of Synthetic Organic Chemistry, Japan 63, no. 3 (2005): 222–31. http://dx.doi.org/10.5059/yukigoseikyokaishi.63.222.

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21

Islami, Mohammad Reza, Hassan Sheibani, Fatemeh Alsadat Hosseininasab, and Avid Hassanpour. "An Efficient Synthesis of New Stable Phosphorus Ylides Containing Sulfur and Nitrogen Atoms." Phosphorus, Sulfur, and Silicon and the Related Elements 182, no. 5 (March 15, 2007): 1003–10. http://dx.doi.org/10.1080/10426500601088986.

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22

KHLEBNIKOV, A. F., and R. R. KOSTIKOV. "ChemInform Abstract: Immonium Ylides from Halocarbenes in the Synthesis of Nitrogen- Containing Compounds." ChemInform 25, no. 20 (August 19, 2010): no. http://dx.doi.org/10.1002/chin.199420309.

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23

Dawood, Kamal M. "AN EFFICIENT ROUTE TOTRANS-4,5-DIHYDROTHIOPHENES AND THIAZOLES VIA NITROGEN AND SULFUR YLIDES." Synthetic Communications 31, no. 11 (January 2001): 1647–58. http://dx.doi.org/10.1081/scc-100103983.

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24

Jursic, Branko S. "Sigmatropic rearrangement of sulfur and nitrogen allylic ylides studied by ab initio methods." Journal of Molecular Structure: THEOCHEM 339, no. 1-3 (September 1995): 161–68. http://dx.doi.org/10.1016/0166-1280(95)04167-5.

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25

M. Dawood, Kamal, Nabila A. Kheder, and Elham S. Darwish. "Synthesis and Some New Indolizine and Pyrrolo[1,2-a]quinoline Derivatives via Nitrogen Ylides." HETEROCYCLES 78, no. 1 (2009): 177. http://dx.doi.org/10.3987/com-08-11527.

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26

Dawood, Kamal M., Eman A. Ragab, and Sanaa N. Mohamed. "Synthesis of Some New Indolizine and Pyrrolo[1,2-a]quinoline Derivatives via Nitrogen Ylides." Zeitschrift für Naturforschung B 64, no. 4 (April 1, 2009): 434–38. http://dx.doi.org/10.1515/znb-2009-0413.

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Pyridine and quinoline react with 3-bromoacetyl-1,5-diphenyl-1H-pyrazole-4-carbonitrile (2) in dry benzene to give the corresponding pyridinium and quinolinium salts 3 and 9. The latter salts undergo [3+2] 1,3-dipolar cycloaddition with some acetylene and ethylene derivatives to give the corresponding indolizine and pyrrolo[1,2-a]quinoline derivatives
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27

Glaeske, Kevin W., and F. G. West. "ChemInform Abstract: Chirality Transfer from Carbon to Nitrogen to Carbon via Cyclic Ammonium Ylides." ChemInform 30, no. 42 (June 13, 2010): no. http://dx.doi.org/10.1002/chin.199942032.

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28

Chen, Junlong, Penghao Jia, and You Huang. "Divergent Domino Reactions of Sulfur Ylides: Access to Functionalized Six- and Seven-Membered Nitrogen–Heterocycles." Organic Letters 20, no. 21 (October 16, 2018): 6715–18. http://dx.doi.org/10.1021/acs.orglett.8b02810.

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29

Bertuzzi, Giulio, Luca Bernardi, and Mariafrancesca Fochi. "Nucleophilic Dearomatization of Activated Pyridines." Catalysts 8, no. 12 (December 6, 2018): 632. http://dx.doi.org/10.3390/catal8120632.

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Amongst nitrogen heterocycles of different ring sizes and oxidation statuses, dihydropyridines (DHP) occupy a prominent role due to their synthetic versatility and occurrence in medicinally relevant compounds. One of the most straightforward synthetic approaches to polysubstituted DHP derivatives is provided by nucleophilic dearomatization of readily assembled pyridines. In this article, we collect and summarize nucleophilic dearomatization reactions of - pyridines reported in the literature between 2010 and mid-2018, complementing and updating previous reviews published in the early 2010s dedicated to various aspects of pyridine chemistry. Since functionalization of the pyridine nitrogen, rendering a (transient) pyridinium ion, is usually required to render the pyridine nucleus sufficiently electrophilic to suffer the attack of a nucleophile, the material is organized according to the type of N-functionalization. A variety of nucleophilic species (organometallic reagents, enolates, heteroaromatics, umpoled aldehydes) can be productively engaged in pyridine dearomatization reactions, including catalytic asymmetric implementations, providing useful and efficient synthetic platforms to (enantioenriched) DHPs. Conversely, pyridine nitrogen functionalization can also lead to pyridinium ylides. These dipolar species can undergo a variety of dipolar cycloaddition reactions with electron-poor dipolarophiles, affording polycyclic frameworks and embedding a DHP moiety in their structures.
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30

Asghari, Sakineh, and Mehdi Zaty. "An Efficient One-Pot Synthesis and Temperature Dependence of NMR Spectra of Nitrogen-Containing Phosphorus Ylides." Phosphorus, Sulfur, and Silicon and the Related Elements 178, no. 10 (October 1, 2003): 2183–87. http://dx.doi.org/10.1080/713744576.

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31

Dawood, Kamal M. "ChemInform Abstract: An Efficient Route to trans-4,5-Dihydrothiophenes and Thiazoles via Nitrogen and Sulfur Ylides." ChemInform 32, no. 48 (May 23, 2010): no. http://dx.doi.org/10.1002/chin.200148045.

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32

Grande, Loreto, Elena Serrano, Luciano Cuesta, and Esteban P. Urriolabeitia. "Regioselective CH Bond Activation on Stabilized Nitrogen Ylides Promoted by Pd(II) Complexes: Scope and Limitations." Organometallics 31, no. 1 (December 23, 2011): 394–404. http://dx.doi.org/10.1021/om201001c.

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33

Tomilov, Yu V., D. N. Platonov, D. V. Dorokhov, and I. V. Kostyuchenko. "Cascade reactions of nitrogen-and phosphorus-containing ylides with methyl diazoacetate and in situ generated diazocyclopropane." Russian Chemical Bulletin 55, no. 1 (January 2006): 112–17. http://dx.doi.org/10.1007/s11172-006-0223-1.

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34

Ghanbari, Mohammad M., Marzieh Jamali, Gyula Batta, and Attila C. Bényei. "Synthesis and dynamic NMR studies of novel hydantoin and thiohydantoin derivatives. Crystal structure of diethyl 2-(4,4-diaryl-2,5-dioxoimidazolidin-1-yl) fumarate and diethyl 2-(4,4-diaryl-2-mercapto-5-oxo-4,5-dihydro-1H-imidazol-1-yl)fumarate." Journal of Chemical Research 41, no. 5 (May 2017): 309–13. http://dx.doi.org/10.3184/174751917x14932244903881.

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The reaction of stoichiometric amounts of dialkyl acetylenedicarboxylates with triphenylphosphine in the presence of hydantoins or thiohydantoins afforded stable crystalline phosphorus ylides. These compounds undergo smooth elimination of PPh3 to produce dialkyl 2-(4,4-diaryl-2,5-dioxoimidazolidin-1-yl)fumarate, 4 or dialkyl 2-(4,4-diaryl-2-mercapto-5-oxo-4,5-dihydro-1 H-imidazol-1-yl)fumarate, 7. Single crystal X-ray diffraction study on 4b and 7b proved the structures unambiguously with C=O and SH functionality at the 2-position of the imidazole ring, respectively. Dynamic effects were observed in the NMR spectra of these compounds and were attributed to restricted rotation around the carbon-nitrogen single bonds. Rotational energy barrier (Δ G#) for their interconversion process of rotational isomers equals to (53.6 and 17.2) ± 2 kcal mol−1.
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35

Wentrup, Curt, and David Kvaskoff. "1,5-(1,7)-Biradicals and Nitrenes Formed by Ring Opening of Hetarylnitrenes." Australian Journal of Chemistry 66, no. 3 (2013): 286. http://dx.doi.org/10.1071/ch12502.

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Several aromatic and heteroaromatic nitrenes and carbenes undergo photochemical and sometimes also thermal ring opening. Depending on benz-annelation, the ring-opened species may have the character of either nitrenes (for α-annelation) or 1,5-(1,7-)-biradicals (for β-annelation). Both types have been observed, and they are clearly distinguished by their characteristic electron spin resonance spectra. In addition, ring opening of hetarylnitrenes to nitrile ylides can be observed whenever there is a meta-relationship between a ring nitrogen atom and the nitrene (or carbene) centre. The factors governing the two types of ring opening have been investigated. The nitrenes and carbenes are generated by either low temperature Ar matrix photolysis or flash vacuum thermolysis of azides, tetrazoles, triazoles, or diazo compounds with matrix isolation of the products.
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36

Zheng, Pengcheng, Chengcheng Li, Chengli Mou, Dingwu Pan, Shuquan Wu, Wei Xue, Zhichao Jin, and Yonggui Robin Chi. "Efficient Access to 2‐Pyrones via Carbene‐Catalyzed Oxidative [3+3] Reactions between Enals and Nitrogen Ylides." Asian Journal of Organic Chemistry 8, no. 7 (May 9, 2019): 1067–70. http://dx.doi.org/10.1002/ajoc.201900153.

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37

Kakehi, Akikazu, Suketaka Ito, and Yasunobu Hashimoto. "Preparation of New Nitrogen-Bridged Heterocycles. 42. Synthesis and the Reaction of PyridiniumN-Ylides Using Bifunctional Ethyl Thiocyanatoacetates." Bulletin of the Chemical Society of Japan 69, no. 6 (June 1996): 1769–76. http://dx.doi.org/10.1246/bcsj.69.1769.

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38

Anary-Abbasinejad, Mohammad, and Sakkineh Tahhan. "Three-Component Reaction of Triphenylphosphine, Acetylenic Esters, and Aromatic Amides: The Synthesis of Stable Nitrogen-Containing Phosphorus Ylides." Phosphorus, Sulfur, and Silicon and the Related Elements 182, no. 2 (January 1, 2007): 315–19. http://dx.doi.org/10.1080/10426500600919132.

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39

Kamata, Masaki, and Gary B. Schuster. "Synthesis and photolysis of a series of substituted aroyl nitrogen ylides: development of photo-crosslinking and photolabeling reagents." Journal of Organic Chemistry 58, no. 20 (September 1993): 5323–28. http://dx.doi.org/10.1021/jo00072a010.

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40

Pierrot, David, Michel Rajzmann, Yannick Carissan, Jean Rodriguez, Damien Bonne, and Yoann Coquerel. "Experimental and theoretical studies of (4 + 1) annulations between α‐oxoketenes and stable phosphorous, nitrogen, or sulfur ylides." Journal of Physical Organic Chemistry 32, no. 6 (February 7, 2019): e3939. http://dx.doi.org/10.1002/poc.3939.

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41

Shaabani, Ahmad, Hamid Reza Safaei, Kiana Hemyari, and Abolghasem Moghimi. "One-pot Synthesis and Dynamic Studies of Stable Dialkyl-2-(1H-Isoindol-1,3(2H)-dione-2-yl)-3-(Triphenylphosphoranylidene) Butanedioate ylides." Journal of Chemical Research 2001, no. 5 (May 2001): 192–94. http://dx.doi.org/10.3184/030823401103169478.

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The title compounds were prepared in high yield by protonation of the reactive 1:1 intermediates produced in the reaction between triphenylphosphine and dialkyl acetylenedicarboxylate by phthalimide, followed by nucleophilic addition of the imidic nitrogen anion to the vinyl phosphonium salts. A dynamic NMR study was also performed.
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42

Gomha, Sobhi M., and Kamal M. Dawood. "Synthesis of Novel Indolizine, Pyrrolo[1,2-A] Quinoline, and 4,5-Dihydrothiophene Derivatives Via Nitrogen Ylides and their Antimicrobial Evaluation." Journal of Chemical Research 38, no. 9 (September 2014): 515–19. http://dx.doi.org/10.3184/174751914x14067338307126.

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43

Dawood, Kamal M. "Indolizines, triazolo[4,3-a]pyridines, benzimidazo[1,2-d]oxadiazoles, and pyrazolo[1,5-c]triazoles via nitrogen and sulfur ylides." Heteroatom Chemistry 15, no. 6 (2004): 432–36. http://dx.doi.org/10.1002/hc.20037.

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44

Kumar, Atul, Suman Srivastava, and Garima Gupta. "Cascade [4 + 1] annulation via more environmentally friendly nitrogen ylides in water: synthesis of bicyclic and tricyclic fused dihydrofurans." Green Chemistry 14, no. 12 (2012): 3269. http://dx.doi.org/10.1039/c2gc36276g.

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45

Dutta, Leema, Meenakshi Sharma, and Pulak J. Bhuyan. "Regioisomeric synthesis of dihydrofuro[2,3-d]pyrimidines in a diastereoselective manner involving nitrogen ylides in one-pot three-component reaction." Tetrahedron 72, no. 42 (October 2016): 6654–60. http://dx.doi.org/10.1016/j.tet.2016.08.084.

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46

Rudler, H., M. Audouin, E. Chelain, B. Denise, R. Goumont, A. Massoud, A. Parlier, et al. "Aminocarbene complexes of chromium and molybdenum: initiators for cascade reactions with alkynes leading to new heterocyclic compounds via nitrogen ylides." Chemical Society Reviews 20, no. 4 (1991): 503. http://dx.doi.org/10.1039/cs9912000503.

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47

CHANDRASEKHAR, S., and D. K. JOSHI. "ChemInform Abstract: 1H-4,1,2-Benzothiadiazines from 1,2,3-Benzothiadiazole via Alkylbenzothiadiazolium Salts: A Novel Heterocyclic Ring Expansion Possibly via Nitrogen Ylides." ChemInform 25, no. 26 (August 19, 2010): no. http://dx.doi.org/10.1002/chin.199426206.

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48

Richter, Marcus, Michal Borkowski, Yubin Fu, Evgenia Dmitrieva, Alexey Popov, Ji Ma, Tomasz Marszalek, Wojciech Pisula, and Xinliang Feng. "Synthesis and Self-Assembly Behavior of Double Ullazine-Based Polycyclic Aromatic Hydrocarbons." Organic Materials 03, no. 02 (April 2021): 198–203. http://dx.doi.org/10.1055/a-1472-6852.

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Abstract:
Polycyclic aromatic azomethine ylides (PAMY, 1) are versatile building blocks for the bottom-up synthesis of nitrogen-containing polycyclic aromatic hydrocarbons (N-PAHs). Although the chemistry of PAMY was already established few years ago, the cycloaddition of a double PAMY building block has not been reported so far. In this work, we demonstrate the first cycloaddition of a PAMY-dimer (6), which opens the access to three different alkyl ester-substituted N-PAHs with a laterally extended double ullazine scaffold (DU-1, DU-2 and DU-3). Interestingly, the cyclic voltammetry of DU-1–3 exhibited three reversible oxidation waves, which confirmed the electron-rich nature of the double ullazine scaffold. Furthermore, in situ spectroelectrochemistry study of ethylhexyl ester-substituted DU-3 revealed the formation of different cationic species with new absorption bands up to 1689 nm. Additionally, the influence of the attached substituents on the film formation and supramolecular organization in the thin films was investigated by polarized optical microscopy and grazing incidence wide-angle X-ray scattering.
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Bonneau, Roland, Yuri N. Romashin, and Michael T. H. Liu. "Laser flash photolysis studies of nitrogen ylides generated by the reaction of arylchlorocarbenes with substituted vinylpyridines and 1-azabuta-1,3-dienes." Journal of Photochemistry and Photobiology A: Chemistry 126, no. 1-3 (September 1999): 31–36. http://dx.doi.org/10.1016/s1010-6030(99)00097-0.

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50

Tomilov, Yury V., Dmitry N. Platonov, Dmitry V. Dorokhov, and Oleg M. Nefedov. "A new method for the synthesis of azaheterocycles based on cascade reactions of nitrogen- and phosphorus-containing ylides with methyl diazoacetate." Tetrahedron Letters 48, no. 5 (January 2007): 883–86. http://dx.doi.org/10.1016/j.tetlet.2006.11.133.

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