ketene उदाहरण वाक्य
उदाहरण वाक्य
- One such example is the preparation of ketenes which may employ a tube furnace in the'ketene lamp '.
- When heated above, acetic acid decomposes to produce carbon dioxide and methane, or to produce ketene and water:
- Mechanistically, the ?-diazoketone undergoes a Wolff rearrangement to form a ketene in a 1, 2-rearrangement.
- "' Alkyl ketene dimers "'( AKDs ) are a family of organic compounds that are used in papermaking.
- The ketene formation during the deprotonation process for substrates possessing Evans'oxazolidinone is also a main side reaction for the related alkylation reactions.
- At high temperatures, Meldrum's acid undergoes a pericyclic reaction that releases acetone and carbon dioxide and produces a highly reactive ketene compound.
- alt = Reaction of the pyrolysis-product ketene with amines, hydroxyl compounds, or water gives amides, esters, or carboxylic acids respectively
- Although nitrile anions are functionally similar to enolates, the extra multiple bond in nitrile anions provides them with a unique ketene-like geometry.
- Unlike the Staudinger ?-lactam synthesis, the Umpolung ketene in the Lectka ?-lactam synthesis behaves as the nucleophile rather than the electrophile.
- Deuterium stabilization can be accomplished through hydrolysis of a ketene precursor in the presence of a slight stoichiometric excess of heavy water ( D 2 O ).