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TRelevant articles and documents
All total 5 Articles be found
All total 5 Articles be foundSynthesis of new carbamoyl dithiophosphates
Plenat, Francoise,Cassagne, Murielle,Cristau, Henri Jean
, p. 783 - 791 (2007/10/03)
The synthesis of new organophosphorus compounds containing a carbamoyl unit is performed by nucleophilic addition or cycloaddition on substituted acetylisocyanates.
Synthesis of 6-aminopenicillanic acid derivatives. I. 6-(Acylureido) penicillanates and some related compounds.
Naito,Nakagawa,Okumura,Konishi,Kawaguchi
, p. 145 - 157 (2007/10/05)
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Stereoselective iodocyclization of 3-acylamino-2-methylene alkanoates: Synthesis of analogues of N-benzoyl-syn-phenylisoserine
Galeazzi, Roberta,Martelli, Gianluca,Mobbili, Giovanna,Orena, Mario,Rinaldi, Samuele
, p. 2571 - 2574 (2007/10/03)
(Matrix Presented) A convenient approach to racemic analogues of N-benzoyl-syn-phenylisoserine was realized via the stereoselective iodocyclization of amides obtained from Baylis-Hillman adducts.
Reactions of (E)-1-Methoxy-1-trimethylsiloxyprop-1-ene with Acyl Isocyanates and Acyl Isothiocyanates
Cambie, Richard C.,Davis, Paul F.,Rutledge, Peter S.,Woodgate, Paul D.
, p. 2073 - 2084 (2007/10/02)
Reaction of aryl acyl,and alkyl acyl isocyanates with (E)-1-methoxy-1-trimethylsiloxyprop-1-ene affords high yields of various methyl 3-acylamino-2-methyl-3-oxopropanoates.The corresponding acyl isothiocyanates give a variety of products depending on the structure of the isothiocyanate.
Reactions de cycloaddition entre acyl (ou thioacyl) isocyanates (ou isothiocyanates) et isocyanates (ou isothiocyanates)
Ratton, Serge,Moyne, Jose,Longeray, Remi
, p. 28 - 32 (2007/10/02)
cycloaddition of an acylisocyanate (1a-1f) to an isocyanate (2a-2c) affords 2,4-dioxo-3,4-dihydro-1,3,5-2H-oxadiazine (4a-4j). Kinetic addition is observed with chloroacetyl (1g) or phenoxyacetyl (1h) isocyanate and methyl isocyanate (2a) to yield a dioxoazetidine (3a and 3b respectively).The reaction of N-dimethylcarbamoyl isothiocyanate (1c) with aromatic isocyanate (2c) or isothiocyanates (2d and 2e) is a cycloaddition too, yielding thioxo (4k) and dithioxo-oxadiazines (4l and 4m).But with the aliphatic isocyanates (2a and 2b) we have observed a preliminary rearrangement of N-dimethylcarbamoyl isothiocyanate 1i to N-dimethylthiocarbamoyl isocyanate 1j and we have obtained 1,3,5-2H-thiadiazines (4n and 4p). Type 1 compounds Acylisocyanates X = Y = O R1 = a : phenyl; b : 3-nitrophenyl; c : 4-nitrophenyl; d : 4-chloro-3,5-dinitrophenyl; e : 4-chloro-2-methylphenoxymethyl; f : 2',4',5'-trichloro-1-phenoxyethyl; g : chloromethyl; h : phenoxymethyl.For R1 = N-dimethyl : N-dimethylcarbamoyl isothiocyanate : i : X = O Y = S; N-dimethylthiocarbamoyl isocyanate : j : X = S Y = O; N-dimethylthiocarbamoyl isothiocyanate : k : X = Y = S.Type 2 compounds Isocyanates Z = O R2 = a : methyl; b : ethyl; c : phenyl; Isothiocyanates Z = S R2 = d : phenyl; e : 4-fluorophenyl.Type 3 compounds Dioxoazetidines X = Y = Z = O R2 = methyl R1 = a : chloroacetyl; b : phenoxyacetyl.Type 4 compounds 1,3,5-2H-oxadiazines X = Y = Z = O R1 = phenyl R2 = a : methyl; b : ethyl; c : phenyl; R2 = methyl R1 = d : 3-nitrophenyl; e : 4-nitrophenyl; f : 4-chloro-3,5-dinitrophenyl; g : 4-chloro-2-methylphenoxymethyl; h : 2',4',5'-trichlorophenoxyethyl; i : chloromethyl; j : phenoxymethyl.For R1 = N-dimethyl : 4-thioxo-1,3,5-oxadiazines : X = Z = O Y = S R2 = k : phenyl 2,4-dithioxo-1,3,5-2H-oxadiazines : X = O Y = Z = S R2 = l : phenyl; m : 4-fluorophenyl. 1,3,5-2H-thiadiazines : X = S Y = Z = O R2 = n : methyl; p : ethyl.
