Oplysninger om | engelsk ord ACETOPHENONE

Eksempler på brug af ACETOPHENONE i en sætning

• Chloroacetophenone was first synthetized by Graebe in 1871 by passing chlorine into boiling acetophenone.
• If acetophenone and benzaldehyde are put together in the presence of aqueous NaOH, only one product is formed:.
• Several of these have pheromonal activity, of which the phenols 4-ethylphenol and catechol and the ketones acetophenone and 3-hydroxyacetophenone are strongest.
• the specific rotation of enantiopure 1-phenylethanol can be enhanced by the addition of achiral acetophenone as an impurity.
• Quadricyclane, a valence isomer, can be obtained from norbornadiene by a photochemical reaction when assisted by a sensitizer such as acetophenone:.
• Pyrylium salts with aromatic substituents, such 2,4,6-triphenylpyrylium tetrafluoroborate, can be obtained from two moles of acetophenone, one mole of benzaldehyde, and excess tetrafluoroboric acid.
• These species may account for the fact that moderately and strongly deactivated substrates that are inert to Friedel-Crafts reactions like acetophenone, nitrobenzene and p-chloronitrobenzene do show marginal reactivity of limited synthetic utility under chloromethylation conditions.
• The original 1951 publication concerned the conversion of potassium t-butyl peroxide and 1-phenylethyl bromide to ultimately acetophenone and t-butanol with piperidine as the base:.
• The required pyridazine can be made by the reaction of acetophenone and pyruvic acid, followed by ring formation using hydrazine, giving a pyrazidinone.
• Products of decomposition of cumene hydroperoxide are methylstyrene, acetophenone, and 2-phenyl-2-propanol.
• The synthesis of ring II was accomplished with a Fischer indole synthesis using phenylhydrazine 1 and acetophenone derivative acetoveratrone 2 (catalyst polyphosphoric acid) to give the 2-veratrylindole 3.
• Separation of the active ingredients from diarylheptanoids and phloracetophenone glucoside compounds were carried out and some active compounds, such as 1,7-diphenyl-5-hydroxy-(1E)-1-heptene and 4,6-dihydroxy-2-o-(b-D-glucopyranosyl) acetophenone, were found to have a stimulative effect on bile secretion in rats.
• This reaction was discovered by chemist John Ulric Nef in 1899 while experimenting with reactions of elemental sodium, phenylacetylene, and acetophenone.
• The structure contains acetophenone and a polyyne (pentadiynyl) portion, conjugated together as an ynone.
• In organic chemistry, acetophenide is a functional group which is composed of the cyclic ketal of a diol with acetophenone.

Sideforberedelse tog: 303,46 ms.