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Ketene
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Abstract
Ketene
product: ketene
reactant: diketene
byproduct: dehydroacetic acid
Title: Ketene
Description:
Abstract
Ketene
product: ketene
reactant: diketene
byproduct: dehydroacetic acid.
Related Results
ChemInform Abstract: Ketene‐S,N‐acetals as Synthons for Heterocycles. New Synthesis of Pyrimidinones.
ChemInform Abstract: Ketene‐S,N‐acetals as Synthons for Heterocycles. New Synthesis of Pyrimidinones.
AbstractThe reactions of the ketene‐N,S‐acetals (I) and (IV) with the isocyanates (II) and the cyanates (XVIII) are investigated, giving the products shown in the scheme....
Preparation of (Triphenylphosphoranylidene)‐Ketene from (Methoxycarbonylmethylene)‐Triphenylphosphorane
Preparation of (Triphenylphosphoranylidene)‐Ketene from (Methoxycarbonylmethylene)‐Triphenylphosphorane
Abstract
(Triphenylphosphoranylidene)ketene
(Methoxycarbonylmethylene)triphenyl...
Synthesis of Cyclobutanes by Lewis Acid‐Promoted Ketene‐Alkene [2+2] Cycloadditions
Synthesis of Cyclobutanes by Lewis Acid‐Promoted Ketene‐Alkene [2+2] Cycloadditions
Abstract
When compared to thermally‐induced reactions, Lewis acid‐promoted variants give rise to increased yields for unactivated alkenes. The article describes the synth...
Total Synthesis of Gracilioether F: Development and Application of Lewis Acid Promoted Ketene–Alkene [2+2] Cycloadditions and Late‐Stage CH Oxidation
Total Synthesis of Gracilioether F: Development and Application of Lewis Acid Promoted Ketene–Alkene [2+2] Cycloadditions and Late‐Stage CH Oxidation
AbstractThe first synthesis of gracilioether F, a polyketide natural product with an unusual tricyclic core and five contiguous stereocenters, is described. Key steps of the synthe...
Catalytic control of enzymatic fluorine specificity
Catalytic control of enzymatic fluorine specificity
The investigation of unique chemical phenotypes has led to the discovery of enzymes with interesting behaviors that allow us to explore unusual function. The organofluorine-produci...
Paper published in Canadian Journal of Chemistry
Paper published in Canadian Journal of Chemistry
A new paper has been published and that is always good news. The paper entitled “Synthesis of new γ-lactones from preactivated monosubstituted pyrazines and TMS–ketene acetals” coa...
Chemie der Phosphorylcarbene
Chemie der Phosphorylcarbene
AbstractPhosphorylcarbene sind erst in den letzten Jahren bei synthetischen Versuchen auf dem Gebiet der Phosphoryldiazoalkane bekannt geworden. Ihr präparativer Wert besteht zum e...
Ketene‐S,N‐acetals as synthons for heterocycles New Synthesis of Pyrimidinones
Ketene‐S,N‐acetals as synthons for heterocycles New Synthesis of Pyrimidinones
AbstractKetene‐S,N‐acetals of type 1, 2 reacted with isocyanates to 5‐cyano‐uracils 3 and 5‐cyano‐pyrimidin‐2‐ones 4, 5. Reaction of these with N nucleophiles was investigated furn...