Relevant bibliographies by topics / N,S-acetals

Academic literature on the topic 'N,S-acetals'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Journal articles on the topic "N,S-acetals":

1

Schuijl, P. J. W., H. J. T. Bos, and L. Brandsma. "Ketene S,N-acetals from thioamides." Recueil des Travaux Chimiques des Pays-Bas 87, no. 1 (September 2, 2010): 123–25. http://dx.doi.org/10.1002/recl.19680870116.

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Junjappa, H., H. Ila, and C. V. Asokan. "α-Oxoketene-S,S-, N,S- and N,N-acetals: Versatile intermediates in organic synthesis." Tetrahedron 46, no. 16 (January 1990): 5423–506. http://dx.doi.org/10.1016/s0040-4020(01)87748-6.

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TAKAHATA, HIROKI, TOMOKO NAKAJIMA, MASAHARU NAKANO, AKIRA TOMIGUCHI, and TAKAO YAMAZAKI. "Ketene-S,N-acetals as synthetic intermediates for heterocycles. Reaction of ketene-S,N-acetals with aryl isocyanates." CHEMICAL & PHARMACEUTICAL BULLETIN 33, no. 10 (1985): 4299–308. http://dx.doi.org/10.1248/cpb.33.4299.

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Mathews, Annie, E. R. Anabha, and C. G. Sholly. "A Facile Method for the Synthesis of Oxoketene-N,S- and -N,N-acetals from Reactions of Amino Compounds." Organic Chemistry International 2010 (November 28, 2010): 1–5. http://dx.doi.org/10.1155/2010/396020.

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Abstract:
2-Aroyl-3,3-bis(alkylsulfanyl)acrylaldehydes reacted with various primary amines, namely, o-phenylenediamine, ethylenediamine, and anilines to produce functionalized oxoketene-N,S-acetals and N,N-acetals in good yields. Imidazolo derivatives synthesized with o-phenylenediamine and ethylenediamine containing a formyl group could act as valuable starting materials for a variety of substituted heterocyclic compounds.
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Rudoref, Wolf-Dieter, Jens Köditz, Nadja Henze, and Ani Tersakian. "REACTIONS OF ACYLFORMYLKETENE S,S-AND S,N-ACETALS WITH AMINES." Phosphorus, Sulfur, and Silicon and the Related Elements 107, no. 1-4 (November 1, 1995): 87–97. http://dx.doi.org/10.1080/10426509508027924.

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Hojo, Masaru, Ryōichi Masuda, Etsuji Okada, Hiromi Yamamoto, Katsushi Morimoto, and Ken Okada. "Facile Synthesis of β-TrifluoroacetylketeneO,N-,S,N- andN,N-Acetals." Synthesis 1990, no. 03 (1990): 195–98. http://dx.doi.org/10.1055/s-1990-26827.

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OTTEN, P. A., N. OSKAM, and A. VAN DER GEN. "ChemInform Abstract: A Horner-Wittig Approach to S,N-Ketene Acetals. Acid-Catalyzed Hydrolysis of S,N-Ketene Acetals to (S)-Thioesters." ChemInform 27, no. 50 (August 4, 2010): no. http://dx.doi.org/10.1002/chin.199650075.

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Zhang, Lin, Jinhuan Dong, Xianxiu Xu, and Qun Liu. "Chemistry of Ketene N,S-Acetals: An Overview." Chemical Reviews 116, no. 2 (January 13, 2016): 287–322. http://dx.doi.org/10.1021/acs.chemrev.5b00360.

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Kirkeby, Emily K., and Andrew G. Roberts. "Design, synthesis and characterization of structurally dynamic cyclic N,S-acetals." Chemical Communications 56, no. 64 (2020): 9118–21. http://dx.doi.org/10.1039/d0cc03503c.

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El-Saghier, Ahmed M. M., Mansour A. Makhlouf, Naglaa F. H. Mahmoud, and Wedad A. El-Adawish. "A-Alkenoyl Ketene S,S- and N,S-Acetals As Starting For Unexpected and Novel Synthesis of N-Heterocycles." JOURNAL OF ADVANCES IN CHEMISTRY 6, no. 1 (April 10, 2010): 861–72. http://dx.doi.org/10.24297/jac.v6i1.965.

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Abstract:
A series of N-heterocycles such as diazaspiro-[4.5]decane, pyrazolo[4,3-d][1,2]-diazepine, imidazo[3,2,1ij][1,8]naphthyridine derivatives or pyrazolo[3,4-b]pyridin-4-ol were synthesized using a-alkenoyl-, a,a-dialkenoyl ketene-(S,S)-acetals 2a-d, 3a-c or a-dialkenoyl ketene-(N,S)-acetal 12 as starting materials. The biological activity of some new synthesized compounds have been investigated.
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Journal articles

Dissertations / Theses on the topic "N,S-acetals":

1

Mykhaylychenko, Sergiy. "Study of perfluoroketene dithioacetals and N,S-acetals for the synthesis of fluorinated acyclic and heterocyclic compounds." Rouen, 2008. http://www.theses.fr/2008ROUES066.

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Abstract:
Les dithioacétals de perfluorocétènes sont des « synthons » simples et polyvalents pour la synthèse d'une large variété de composés fluorés acycliques et cycliques. Des transformations efficaces et directes des g-lactones a,b-insaturées en g-lactames et en pyridazin-3-ones substitués par un groupement 2,2,2-trifluoroéthyle ont été effectuées, à partir d'amines primaires et d'hydrazines variées et des dithioacétals de perfluorocétènes. La structure de tous les nouveaux composés a été assignée en utilisant les données de RMN (19F, 1H, 13C), d'IR et de MS et par diffraction des rayons X. Les réactions des polyfluorothioamides N-monosubstitués avec des réactifs organolithiums ont été étudiées. Dans le cas des polyfluorothioamides N,N-disubstitués, les N,S-acétals ont été obtenus. Les propriétés chimiques des N,S-acétals de perfluorocétènes, incluant les réactions d'oxydation et de chloration, ont été étudiées. La réaction d'oxydation des N,S-acétals de perfluorocétènes avec l'hydroperoxyde de tertbutyle a conduit à la formation d'un a-hydroperfluoroamide. La chloration des N,S-acétals de perfluorocétènes avec le chlorure de sulfuryle a donné des a-chloroperfluoroamides ; cette méthode s'est avérée une nouvelle approche pour la synthèse des composés polyfluorés a-chlorés optiquement actifs. Les mécanismes possibles pour ces transformations ont été discutés
Perfluoroketene dithioacetals are simple and highly versatile building-blocks for the synthesis of various fluorinated acyclic and heterocyclic compounds. Efficient and straightforward transformation of a,b-unsaturated g-lactones into 2,2,2-trifluoroethyl substituted γ-lactams and pyridazin-3-ones was performed, starting from a variety of primary amines or hydrazines and perfluoroketene dithioacetatals. The structures of all new compounds were ascribed using NMR (19F, 1H, 13C), IR, MS data and X-ray diffraction analysis. The possible mechanisms for the formation of γ-lactams and pyridazin-3-ones are also presented. The reactions of N-monosubstituted polyfluorothioamides with alkyllithium reagents were studied. In the case of N,N-disubstituted perfluorothioamides N,S-acetals were obtained. Some chemical properties of perfluoroketene-N,S-acetals, including oxidation and chlorination reactions, were investigated. Oxidation reaction of perfluoroketene-N,S-acetals with t-butylhydroperoxide led to a formation of a-hydroperfluoroamides. Chlorination of perfluoroketene-N,S-acetals with sulfuryl chloride gave a-chloroperfluoroamides; this method proved to be a new approach in the synthesis of polyfluorinated a-chloro optically active compounds. The possible mechanisms for these transformations are discussed
2

Ingle, Gajendrasingh. "Chiral BINOL Metal Phosphate/Phosphoric Acid Catalyzed Enantioselective Addition of Phosphorus and Sulfur Nucleophiles to Imines and Epoxides." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4339.

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Abstract:
The research presented in this dissertation focuses on chiral BINOL metal phosphatephosphoric acid catalyzed enantioselective additions of phosphorus and sulfur nucleophiles to imines and epoxides. In chapter 2, we reported a new method to synthesize chiral amino phosphine oxides. The reaction combines N-substituted imines and diphenylphosphine oxide catalyzed by chiral magnesium 9-antryl phosphate. A wide variety of aliphatic and aromatic aldimines substituted by electron neutral benzhydryl or dibenzocycloheptene groups were excellent substrates for the addition reaction. The imines protected with dibenzocycloheptene protecting group provided better enantioselectivity than those protected with benzhydryl group, while both imines gave comparable yields. Also, the substituted diphenylphosphine oxides were excellent nucleophiles obtaining chiral α-amino phosphine oxides in good yields and enantioselectivities. In chapter 3, we reported the first catalytic asymmetric method to prepare enantioenriched N,S-acetals catalyzed TRIP phosphoric acids. The reaction combined N-acyl imines with thiols to generate products in excellent yield and enantioselectivity. Electron-rich and electron-deficient aromatic N-acyl imines were excellent substrate for the addition reaction. A wide range of aliphatic and aromatic thiols obtained the N,S-acetals in excellent yields and enantioselectivities. The TRIP phosphoric acid was found to be an extremely efficient catalyst for the transformation, resulting in asymmetric induction at extremely low catalyst loading. In chapter 4, a highly enantioselective method for desymmetrization of meso-epoxides using thiols catalyzed by substituted BINOL lithium phosphate is reported. This is the first example of epoxide activation using metal phosphate is reported. Various five and six membered aliphatic cyclic meso-epoxides were excellent substrates for the desymmetrization reaction; aromatic acyclic epoxides also reacted with excellent yield and asymmetric induction. Similarly electron rich and electron deficient aromatic thiols obtained the β-hydroxyl sulfides in excellent yields and enantioselectivities.

Books on the topic "N,S-acetals":

1

Otera, J., C. Kibayashi, N. Yamazaki, H. Yamada, M. Yamashita, T. Y. Luh, M. k. Leung, et al. Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00000.

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Book chapters on the topic "N,S-acetals":

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"S,N-Acetals to S,Li-Acetals." In Substance index : from the 4th edition and the additional and supplementary volumes to the 4th edition, edited by Backes, Fröhlich, and Padeken. Stuttgart: Georg Thieme Verlag, 2000. http://dx.doi.org/10.1055/b-0035-114342.

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Takeda, T., and A. Tsubouchi. ",-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00115.

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Murai, T., and M. Yoshimatsu. ",-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00484.

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Yamashita, M. ",-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00524.

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Murai, T., and M. Yoshimatsu. ",- and ,-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00497.

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Nakata, M. "Thioacetalization of Hemiacetals, ,-Acetals, ,-Acetals, and Enol Ethers." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00279.

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Ogura, K. "Oxidation of ,-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00360.

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Murai, T., and M. Yoshimatsu. "Organoselanylation of ,-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00495.

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Murai, T., and M. Yoshimatsu. "Alkylselanylation of ,-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00496.

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Yamashita, M. "Synthesis from ,-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues, 1. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00521.

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Conference papers on the topic "N,S-acetals":

1

Zou, Y., J. Feng, J. Li, and C. Ye. "Study on the nonlinear optical properties of substituted ketene N,S-acetals." In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835734.

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