Anagrammer & Oplysninger om | engelsk ord ACYLATION

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Eksempler på brug af ACYLATION i en sætning

• Friedel developed the Friedel-Crafts alkylation and acylation reactions with James Crafts in 1877, and attempted to make synthetic diamonds.
• James Mason Crafts (March 8, 1839 – June 20, 1917) was an American chemist, mostly known for developing the Friedel–Crafts alkylation and acylation reactions with Charles Friedel in 1876.
• The most important reactions of this type that take place are aromatic nitration, aromatic halogenation, aromatic sulfonation and acylation and alkylating Friedel-Crafts reactions.
• In the acylation step, a haloacetic acid, typically bromoacetic acid activated by diisopropylcarbodiimide reacts with the amine of the previous residue.
• One method includes an organic compound succinic anhydride and a carboxylic acid docosanoic acid that have been used to attach the different carbon chains (C4 and C22) on 2 and 5 positions of thiophene, via two acylation sequences.
• The two-step sequence of Friedel-Crafts acylation followed by Clemmensen reduction constitutes a classical strategy for the primary alkylation of arenes.
• A modern synthesis of hippuric acid involves the acylation of glycine with benzoyl chloride ("Schotten–Baumann reaction").
• The use of erbium(III) chloride as a catalyst has been demonstrated in the acylation of alcohols and phenols and in an amine functionalisation of furfural.
• Unsubstituted 1,2,4-triazole can be prepared from thiosemicarbazide by acylation with formic acid followed by cyclization of 1-formyl-3-thiosemicarbazide into 1,2,4-triazole-3(5)-thiol; oxidation of the thiol by nitric acid or hydrogen peroxide yields 1,2,4-triazole.
• In order to activate these receptors, ghrelin must undergo a process called acylation in which it acquires an acyl group, and caprylic acid provides this by linking at a specific serine site on ghrelin molecules.
• Ethylamine undergoes the reactions anticipated for a primary alkyl amine, such as acylation and protonation.
• In addition to discovering novel anthocyanidins, he made in-depth studies of their glycosylation and began work on their acylation.
• In 1962, Westheimer and others demonstrated the synthesis of p-nitrophenyl diazoacetate and the subsequent acylation of chymotrypsin to form diazoacetylchymotrypsin, which was then photolyzed.
• It undergoes Friedel-Crafts acylation with acetyl chloride and aluminium chloride to give the acyl derivative 2, with formaldehyde and hydrochloric acid to the chloromethyl derivative 3, in a Vilsmeier-Haack reaction with N-methylformanilide and phosphorus oxychloride to the formyl 4, and in a Mannich reaction to amine derivative 5.
• Acylium ions are intermediates in several reactions, such as the Friedel-Crafts acylation of arenes by acetyl chloride in the presence of aluminium trichloride:.
• LPLs are usually the result of phospholipase A-type enzymatic activity on regular phospholipids such as phosphatidylcholine or phosphatidic acid, although they can also be generated by the acylation of glycerophospholipids or the phosphorylation of monoacylglycerols.
• Acetanisole can be prepared synthetically by Friedel-Crafts acylation of anisole with acetyl chloride:.
• Fenbufen can be synthesized by acylation of biphenyl with succinic anhydride under Friedel-Crafts conditions.
• Friedel-Crafts acylation of the n-butyl ether of thiophenol with benzoyl chloride gives the corresponding benzophenone.
• Friedel-Crafts acylation between biphenyl (1) and benzoyl chloride (2) gives 4-phenylbenzophenone (3).

Sideforberedelse tog: 412,09 ms.