- Synthesis of Oxazolidin-2-ones by Tandem Cyclization of Propargylic Alcohols and Phenyl Isocyanate Promoted by Silver Catalysts as π-Lewis Acids
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Highly Z-selective syntheses of oxazolidin-2-ones from propargylic alcohols containing internal alkynes and phenyl isocyanate were achieved by using a combination of silver acetate and N,N-dimethylaminopyridine. The catalytic system was applied to proparg
- Sekine, Kohei,Mawatari, Takanori,Yamada, Tohru
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supporting information
p. 2447 - 2450
(2015/10/19)
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- Synthesis of acylphosphonates by a palladium-catalyzed phosphonocarbonylation reaction of aryl iodides with phosphites
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Acylphosphonates are conveniently synthesized from aryl iodides by a palladium-catalyzed reaction with dialkyl phosphites under an atmospheric pressure of carbon monoxide. The reaction demonstrates the first example of the use of phosphorus nucleophiles in related metal-catalyzed carbonylation reactions.
- Masuda, Yusuke,Ishida, Naoki,Murakami, Masahiro
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supporting information
p. 321 - 324
(2015/02/05)
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- NOVEL TRICYCLIC COMPOUNDS
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The invention provides a compound of Formula (Ia), (Ib), (Ic), (Id), (Ie), (If), (Ig), (Ih), (Ii), (Ij), (Ik), or (Il) as defined herein, pharmaceutically acceptable salts, pro-drugs, biologically active metabolites, stereoisomers and isomers thereof wherein the variable are defined herein. The compounds of the invention are useful for treating immunological and oncological conditions.
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Page/Page column 135
(2011/06/25)
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- 2-Methoxy-4-nitrobenzenediazonium salt as a practical diazonium-transfer agent for primary arylamines via tautomerism of 1,3-diaryltriazenes: Deaminative iodination and arylation of arylamines without direct diazotization
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1,3-Diaryltriazenes, prepared from a 2-methoxy-4-nitrobenzenediazonium salt and primary arylamines, exist as "azo-transfer" tautomers in which the 2-methoxy-4-nitrophenyl group is present on the saturated nitrogen atom and forms a hydrogen bond between the 2-methoxy group and the N-H moiety. The synthetic utility of the diazonium salt as a practical diazonium-transfer agent for primary arylamines via tautomerism of the 1,3-diaryltriazenes has been demonstrated by the deaminative iodination and arylation of the arylamines without direct diazotization. The starting 2-methoxy-4-nitrophenylamine can be easily recovered after the reactions.
- Saeki, Tomoyuki,Son, Eun-Cheol,Tamao, Kohei
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p. 1654 - 1658
(2007/10/03)
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- N2S2 tetradentate ligands for soft cationic species: preparation of new ligands of potential interest in nuclear medicine
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The synthesis of N2S2 tetradentate ligands of the bis-(enaminothioester) type was carried out starting from 3-(methylthio)-3H-1,2-dithiolylium iodides and diamines.The title compounds, which are potential ligands for soft cationic species, can be obtained from 1,3-diaminopropan-2-ol and subsequently modified into the dissymmetrical succinic acid ester of the ligand and N-hydroxysuccinimide.The appendage of such a linking group on the chelating structure should allow further grafting to monoclonal antibodies in view of potential applications in nuclear medicine. 3H-1,2-dithiole-3-thione / 1,3-diaminopropan-2-ol / bis-(enaminothioester) / N2S2 tetradentate ligand / N-hydroxysuccinimidyl ester
- Charbonnel-Jobic, Gaelle,Guemas, Jean-Pierre,Adelaere, Bruno,Parrain, Jean-Luc,Quintard, Jean-Paul
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p. 624 - 636
(2007/10/02)
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