Academic literature on the topic 'Spiroaminals'

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Journal articles on the topic "Spiroaminals"

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Sinibaldi, Marie-Eve, and Isabelle Canet. "Synthetic Approaches to Spiroaminals." European Journal of Organic Chemistry 2008, no. 26 (2008): 4391–99. http://dx.doi.org/10.1002/ejoc.200800371.

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Kumar, Rayala Naveen, and Seongmin Lee. "Hypervalent Iodine-Mediated Synthesis of Steroidal 5/5-Spiroiminals." Molecules 29, no. 23 (2024): 5812. https://doi.org/10.3390/molecules29235812.

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The hypervalent iodine-mediated formation of steroidal 5/5-spiroiminals and 5/5-spiroaminals from steroidal amines is presented. Under the influence of excess PhI(OAc)2 and iodine in acetonitrile at 0 °C, steroidal amines smoothly underwent cyclization to give a mixture of 5/5-spiroiminals and 5/5-spiroaminals. This reaction represents the first example of a C-H-activation-mediated formation of a spiroiminal. Presumably, the formation of 5/5-spiroiminals occurs through aminyl radical-mediated cyclization followed by amine-to-imine oxidation.
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Zhang, Shuo, Zhengliang Xu, Jiong Jia, Chen-Ho Tung, and Zhenghu Xu. "Synthesis of spiroaminals by bimetallic Au/Sc relay catalysis: TMS as a traceless controlling group." Chem. Commun. 50, no. 81 (2014): 12084–87. http://dx.doi.org/10.1039/c4cc05610h.

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Almond-Thynne, Joshua, Andrew J. P. White, Anastasios Polyzos, Henry S. Rzepa, Philip J. Parsons, and Anthony G. M. Barrett. "Synthesis and Reactions of Benzannulated Spiroaminals: Tetrahydrospirobiquinolines." ACS Omega 2, no. 7 (2017): 3241–49. http://dx.doi.org/10.1021/acsomega.7b00482.

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Wang, Xianghua, Shuli Dong, Zhili Yao, et al. "Synthesis of Spiroaminals and Spiroketals with Bimetallic Relay Catalysis." Organic Letters 16, no. 1 (2013): 22–25. http://dx.doi.org/10.1021/ol4033286.

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John Pal, Adabala Pal, Parasuraman Kadigachalam, Asadulla Mallick, Venkata Ramana Doddi, and Yashwant D. Vankar. "Synthesis of sugar-derived spiroaminals via lactamization and metathesis reactions." Org. Biomol. Chem. 9, no. 3 (2011): 809–19. http://dx.doi.org/10.1039/c0ob00555j.

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Boonlarppradab, Chollaratt, Christopher A. Kauffman, Paul R. Jensen, and William Fenical. "Marineosins A and B, Cytotoxic Spiroaminals from a Marine-Derived Actinomycete." Organic Letters 10, no. 24 (2008): 5505–8. http://dx.doi.org/10.1021/ol8020644.

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Wang, Xianghua, Shuli Dong, Zhili Yao, et al. "ChemInform Abstract: Synthesis of Spiroaminals and Spiroketals with Bimetallic Relay Catalysis." ChemInform 45, no. 22 (2014): no. http://dx.doi.org/10.1002/chin.201422147.

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Loerbroks, Claudia, Birte Böker, Jens Cordes, Anthony G. M. Barrett, and Walter Thiel. "Spiroaminals - Crystal Structure and Computational Investigation of Conformational Preferences and Tautomerization Reactions." European Journal of Organic Chemistry 2014, no. 25 (2014): 5476–86. http://dx.doi.org/10.1002/ejoc.201402576.

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John Pal, A. P., and Yashwant D. Vankar. "Azidation of anomeric nitro sugars: application in the synthesis of spiroaminals as glycosidase inhibitors." Tetrahedron Letters 51, no. 18 (2010): 2519–24. http://dx.doi.org/10.1016/j.tetlet.2010.03.003.

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Dissertations / Theses on the topic "Spiroaminals"

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Salem, Shaimaa Mohamed. "Biosynthesis of Marineosin, a Spiroaminal Undecylprodiginine Natural Product." PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/936.

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Marineosins A and B are two spiroaminal-ring containing tripyrrole compounds isolated from the marine actinomycete, Streptomyces CNQ-617, and were found to possess potent and selective cytotoxic activity against leukemia and melanoma. Marineosins belong to the prodiginines class of natural products, examples of which are undecylprodiginine and streptorubin B. Unlike marineosins, prodiginines structures are characterized by the presence of fully conjugated tripyrrole nucleus linked to an alkyl chain (that lacks any oxygen). Cyclic prodiginines arise from an oxidative cyclization of the alkyl ch
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Ollivier, Anthony Gabriel André. "Synthèse asymétrique de spiroacétals : vers la broussonétine H." Thesis, Clermont-Ferrand 2, 2011. http://www.theses.fr/2011CLF22109/document.

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Le motif spiroacétal est une structure présente dans le squelette de nombreuses molécules naturelles possédant des activités biologiques variées et pour laquelle il existe de nombreuses voies de synthèse. En revanche, son analogue azoté, le motif spiroaminal a été beaucoup moins étudié. Le premier de nos objectifs a consisté à développer une voie de synthèse énantiosélective, la plus générale possible, de ce motif. La stratégie retenue repose sur une étape clé de spirocyclisation acido-catalysée d’aminohydroxycétones issues de l’alkylation séquentielle de l’acétone N,N-diméthylhydrazone par di
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Macnaughton, Sarah. "The Aza-Bohlmann cyclisation and the synthesis of Pandanus alkaloids." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:2c91155f-0c0d-47b4-b8dc-f5e32fb2a8f9.

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Bohlmann et al. reported the oxidative spirocyclisation of 2-(ω-hydroxyalkyl)furans under Clauson-Kaas conditions to furnish 1,6-dioxaspiro[4.5]dec-3-enes, thereafter termed the “Bohlmann cyclisation.” This thesis describes the development of an analogous aza-Bohlmann cyclisation. Treatment of 2-(ω-aminoalkyl)furans with m-CPBA or singlet oxygen generates hydroxy- or methoxybutenolides, respectively, which undergo spirocyclisation upon treatment with H₂SO₄ to generate [4.4]- and [4.5]-spiroaminoacetals. The axial/equatorial preferences of N-sulfonylspiroaminoacetals featuring a 3-O-isovaleryl
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Ollivier, Anthony. "Synthèse asymétrique de spiroacétals : vers la broussonétine H." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2011. http://tel.archives-ouvertes.fr/tel-00653357.

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Le motif spiroacétal est une structure présente dans le squelette de nombreuses molécules naturelles possédant des activités biologiques variées et pour laquelle il existe de nombreuses voies de synthèse. En revanche, son analogue azoté, le motif spiroaminal a été beaucoup moins étudié. Le premier de nos objectifs a consisté à développer une voie de synthèse énantiosélective, la plus générale possible, de ce motif. La stratégie retenue repose sur une étape clé de spirocyclisation acido-catalysée d'aminohydroxycétones issues de l'alkylation séquentielle de l'acétone N,N-diméthylhydrazone par di
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Book chapters on the topic "Spiroaminals"

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Carter, R. G., and D. L. Kuiper. "Spiroaminals." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00518.

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Carter, R. G., and D. L. Kuiper. "5,6-Spiroaminals." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00519.

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Carter, R. G., and D. L. Kuiper. "6,6-Spiroaminals." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00525.

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Carter, R. G., and D. L. Kuiper. "Iodolactonization toward Spiroaminals." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00524.

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"Asymmetric Synthesis of Spiroketals, Bisspiroketals, and Spiroaminals." In Stereoselective Synthesis 2, edited by Molander. Georg Thieme Verlag, 2011. http://dx.doi.org/10.1055/sos-sd-202-00456.

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Carter, R. G., and D. L. Kuiper. "Acid-Catalyzed Spiroaminal Formation toward Sanglifehrin." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00527.

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Carter, R. G., and D. L. Kuiper. "Tandem Azide Hydrogenation/Spiroaminal Formation toward Azaspiracid." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00520.

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Carter, R. G., and D. L. Kuiper. "Steric Effects in Spiroaminal Formation toward Azaspiracid." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00521.

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Carter, R. G., and D. L. Kuiper. "Lewis Acid Mediated Spiroaminal Formation toward Azaspiracid." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00522.

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Carter, R. G., and D. L. Kuiper. "Acid-Catalyzed, Protic Solvent Spiroaminal Formation toward Sanglifehrin." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00526.

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Reports on the topic "Spiroaminals"

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Salem, Shaimaa. Biosynthesis of Marineosin, a Spiroaminal Undecylprodiginine Natural Product. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.936.

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