- Iron-Catalyzed Synthesis of Sulfur-Containing Heterocycles
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An iron-catalyzed synthesis of sulfur- and sulfone-containing heterocycles is reported. The method is based on the cyclization of readily available substrates and proceeded with high efficiency and diastereoselectivity. A variety of sulfur-containing heterocycles bearing moieties suitable for subsequent functionalization are prepared. Illustrative examples of such postcyclization modifications are also presented.
- Bosset, Cyril,Lefebvre, Gauthier,Angibaud, Patrick,Stansfield, Ian,Meerpoel, Lieven,Berthelot, Didier,Guérinot, Amandine,Cossy, Janine
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- Stereoselective synthesis of cis-2,6-disubstituted morpholines and 1,4-oxathianes by intramolecular reductive etherification of 1,5-diketones
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A simple and efficient, Lewis acid catalysed reductive etherification strategy for the stereoselective synthesis of cis-2,6- disubstituted morpholines and 1,4-oxathianes starting from readily available 1,5-diketones has been developed. The strategy is used in the total synthesis of morpholine-based natural products (±)-chelonin A and formal total synthesis of (±)-chelonin C.
- Gharpure, Santosh J.,Anuradha, Dandela,Prasad, Jonnalagadda V. K.,Rao, Pidugu Srinivasa
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supporting information
p. 86 - 90
(2015/01/16)
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- Synthesis and stereochemistry of some 2,6-diaryl-1,4-oxathian-4,4-dioxides
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Several 2,6-di(2-/4-substitutedphenyl)-1,4-oxathian-4,4-dioxides have been synthesized and their stereochemistry investigated using high resolution 1H NMR and 13C NMR spectra.These compounds adopt chair conformation and the substituents are equatorially o
- Selvaraj, S.,Dhanabalan A.,Arumugam, N.
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p. 141 - 142
(2007/10/02)
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- Condensation of dimethylsulfone with aromatic aldehydes using phase-transfer catalysis
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Some aromatic aldehydes such as benzaldehyde and 4-chlorobenzaldehyde on condensation with dimethylsulfone under phase-transfer catalytic conditions using triethylbenzylammonium chloride (TEBAC) as PTC yield cis-2,6-diaryl-1,4-oxathiane-4,4-dioxides (I) w
- Selvaraj, S,Dhanaoalan, A,Amaithirani, J S Arunothayam,Arumugam, N
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p. 871 - 872
(2007/10/02)
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- CONDENSATION OF SOME AROMATIC ALDEHYDES WITH DIMETHYL SULFONE
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Condensation of some aromatic aldehydes with dimethyl sulfone using sodium amide has been studied.Majority of the aldehydes afforded cis-2,6-diaryl-1,4-oxathian-4,4-dioxides as the exclusive product. 4-Methoxybenzaldehyde, in addition, provided the bis α,
- Selvaraj, S.,Dhanabalan, A.,Perumal, S.,Arumugam, N.
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p. 217 - 220
(2007/10/02)
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