Academic literature on the topic 'Photocyclisation'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Photocyclisation.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Photocyclisation"
Cottet, Françoise, Louis Cottier, and Gérard Descotes. "Photocyclisations de cétoacétals aromatiques en vue d'une approche synthétique de la crombénine." Canadian Journal of Chemistry 68, no. 7 (July 1, 1990): 1251–57. http://dx.doi.org/10.1139/v90-193.
Full textGupta, Satish C., Somesh Sharma, Mohamad Yusuf, Surinder Arora, Ashok Saini, Ramesh C. Kamboj, and Som N. Dhawan. "Photocyclisation of 3-Alkoxythiochromones: Activation for H-Abstraction." Journal of Chemical Research 2002, no. 4 (April 2002): 165–67. http://dx.doi.org/10.3184/030823402103171744.
Full textGupta, Satish C., Mohamad Yusuf, Mandeep Thakur, and Ramesh C. Kamboj. "Photocyclisation of o-Xylylbischromones: Proximity Effect." Journal of Chemical Research 2005, no. 11 (November 2005): 741–43. http://dx.doi.org/10.3184/030823405774909469.
Full textKlajn, Jan, Wojciech Stawski, Piotr J. Chmielewski, Joanna Cybińska, and Miłosz Pawlicki. "A route to a cyclobutane-linked double-looped system via a helical macrocycle." Chemical Communications 55, no. 31 (2019): 4558–61. http://dx.doi.org/10.1039/c9cc01201j.
Full textMascal, Mark, and Christopher J. Moody. "Photocyclisation of haloacetyl tryptophan derivatives." Journal of the Chemical Society, Chemical Communications, no. 9 (1988): 587. http://dx.doi.org/10.1039/c39880000587.
Full textBeck, Anthony L., Mark Mascal, Christopher J. Moody, Alexandra M. Z. Slawin, David J. Williams, and William J. Coates. "Synthesis of 3,4-bridged indoles by photocyclisation reactions. Part 1. Photocyclisation of halogenoacetyl tryptophan derivatives." Journal of the Chemical Society, Perkin Transactions 1, no. 7 (1992): 797. http://dx.doi.org/10.1039/p19920000797.
Full textMüller, Matthias, Stefan Behnle, Cäcilia Maichle-Mössmer, and Holger F. Bettinger. "Boron–nitrogen substituted perylene obtained through photocyclisation." Chem. Commun. 50, no. 58 (2014): 7821–23. http://dx.doi.org/10.1039/c4cc01424c.
Full textde Vries, Johannes G., and Sally A. Hubbard. "Conversion of benzoin into 9,10-phenanthrenequinone by photocyclisation." Journal of the Chemical Society, Chemical Communications, no. 17 (1988): 1172. http://dx.doi.org/10.1039/c39880001172.
Full textKhanna, Radhika, Aarti Dalal, Ramesh Kumar, and Ramesh C. Kamboj. "Phototransformation of 3-alkoxychromenones: regioselective photocyclisation and dealkoxylation." Photochemical & Photobiological Sciences 14, no. 12 (2015): 2195–202. http://dx.doi.org/10.1039/c5pp00318k.
Full textKessar, S. V., Tejvir Singh, and Rahul Vohra. "An interesting application of photocyclisation in aporhoeadane alkaloid synthesis." Tetrahedron Letters 28, no. 44 (January 1987): 5323–26. http://dx.doi.org/10.1016/s0040-4039(00)96720-0.
Full textDissertations / Theses on the topic "Photocyclisation"
MADACI, ABDELAZIZ. "Reactions de photocyclisation d'alpha-cetoamides." Reims, 1994. http://www.theses.fr/1994REIMS009.
Full textAMOUGAY, AICHA. "Photocycloaddition et photocyclisation de vinylogues d'imides insatures." Reims, 1994. http://www.theses.fr/1994REIMS005.
Full textFairley, Brian. "Porphyrin models for nitric oxide synthase." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/534.
Full textTIETCHEU, CHRISTELE. "Photocyclisation d'arylenamines et d'arylenaminones. Application a la synthese d'indoles et d'alcaloides tricycliques." Clermont-Ferrand 2, 1996. http://www.theses.fr/1996CLF21762.
Full textMabiala, Gaston. "Utilisation des N-vinylaziridines en synthèse organique : synthèse et photocyclisation de diénamines fonctionnalisées." 63-Aubière : Impr. U.E.R. Sci, 1985. http://catalogue.bnf.fr/ark:/12148/cb36110183c.
Full textYavari, Keihann. "Design et synthèse de phosphahélicènes chiraux. Application en catalyse asymétrique." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112276.
Full textIn the first part of the manuscript, we have demonstrated the importance of helicenes by recalling their application fields, thus highlighting the interest of the scientific community to this class of compounds. We have summarized then the main results of our work. Our objective was the synthesis of phosphahelicene where the phosphorus moiety is included in the terminal aromatic ring of the helical framework. Following a photocyclisation approach, we developed a synthetic pathway starting from olefines substituted by1H-phosphindoles. A [2+2] dimerisation reaction between the terminal double bonds of two helicenes was also observed, which led to the first dimers of helicenes reported in the literature. The photocyclisation being highly diastereoselective, we were able to obtain enantiopur phosphahelicenes by using a chiral substituent on the phosphorus atom. We then used dibenzophospholes, as starting materials, instead of 1H-phosphindoles that resulted in the formation of a new series of phosphahelicenes in improved yields. The corresponding phosphahelicenes were used to form gold and iridium complexes. The Au-phosphahelicene complexes were tested in cycloisomerisation reactions of 1,6 aza-enynes and showed good activity but very poor asymmetric induction.To increase the chiral induction, we chose to come back to phosphindoles as a phosphorus core but we improved their design: aryl substituents were added in alpha position to the phosphorus atom. After formation of the new helicenes and their corresponding gold complexes, investigation of their catalytic properties highlighted the correct geometry and structural features needed for a good asymmetric induction.Enantiomeric excesses up to 86% were obtained. This work allowed the design of a new family of efficient gold catalysts for enantioselective cycloisomerisation
MISSOUM, ASSIA. "Photocyclisation d'arylenamides et d'arylenaminones : synthese de piperidines, de carbazoles et de molecules heterocycliques spiraniques, analogues simplifies de la galanthamine et de la lycoramine." Clermont-Ferrand 2, 1996. http://www.theses.fr/1996CLF21803.
Full textMedena, Caleb. "Synthèses d’hélicènes énantioenrichis et application en catalyse asymétrique." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066430/document.
Full textNew [6]helicene-based bisphosphinites were synthetized and used in asymmetric catalysis. Desired 2,15-dimethoxy[6]helicenes were synthetized by two pathways: photochemical oxidative cyclization and CoI or RhI-catalyzed [2+2+2] cycloaddition. Both enantiomers of [6]Helixols were obtained by preparative chiral HPLC and/or using a chiral agent (up to 99.5 % ee). Even if desired helical cyclic scaffolds cannot be obtained due to the large distance between the two oxygen atoms. The synthesis of new [6]helicenes-based bisphosphinites were developed. Those last were used in gold-catalyzed enantioselective cycloisomerization of 1,6-enynes and Pd-catalyzed asymmetric allylic alkylation
Robert, Antoine. "Synthèse organique de macrocycles conjugués par réaction de Perkin." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0935/document.
Full textThe controlled organic synthesis of carbon nanobelts has been scientific challenge for a long time. Such cylindrical polycyclic aromatic compounds can be defined as sections of carbon nanotubes that are larger than wide. Interesting electronic properties could result from the curvature of their pi system.These last years, our team has developed a general synthetic approach for the formation of carboxy-functionalised polycyclic aromatic compounds. This approach involves the Perkin reaction of arylacetic acids with arylglyoxylic acids, in order to form conjugated and flexible elongated precursors. The last step is an intramolecular cyclisation, or “graphitisation”, which rigidifies the precursor and yields a fully conjugated final molecule. Applying this approach, our team has synthesised several new linear polycyclic aromatic compounds.The aim of this thesis is to adapt the Perkin reaction for the formation of aromatic nanobelts. A first challenge has been solved by synthesising and fully characterising several flexible and conjugated macrocycles. Some of those macrocyclic compounds have been obtained with unexpectedly good yields using a high dilution addition technique. Graphitisations have been tried on some of those macrocycles by different synthetic methods, i.e. photochemistry and palladium catalysis, but none of them led to the formation of the desired aromatic nanobelt. However, by modifying the initial structure of some of the building blocks, we obtained more flexible conjugated macrocycles, which then reacted, by photocyclisation, to form conjugated and non-planar rigid macrocycles with atypical structures
BEARNAIS-BARBRY, Stéphane. "Etude de la photoréactivité de la méthoxy-p-quinone et de phényl-p-benzoquinones en solution." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2001. http://tel.archives-ouvertes.fr/tel-00006202.
Full textConference papers on the topic "Photocyclisation"
Du, Yong, Jiadan Xue, Mingde Li, Xiangguo Guan, David W. McCamant, David Lee Phillips, P. M. Champion, and L. D. Ziegler. "Unravelling the Fast Photocyclisation Reaction Mechanism(s) of 2-Benzoylpyridine in Aqueous Solvent by Time-resolved Spectroscopy." In XXII INTERNATIONAL CONFERENCE ON RAMAN SPECTROSCOPY. AIP, 2010. http://dx.doi.org/10.1063/1.3482387.
Full text