Acetyl chloride npaj acetic acid li cas?
Acetyl chloride npaj acetic acid li cas?

Video: Acetyl chloride npaj acetic acid li cas?

Video: Acetyl chloride npaj acetic acid li cas?
Video: Preparation of acetyl chloride from acetic acid 2024, Kaum ib hlis
Anonim

Feem ntau acetyl chloride npaj los ntawm kev ua ntawm phosphorus trichloride rau acetic acid , vim acetyl chloride boils ntawm 51 ° C thiab nws tau yooj yim sib cais los ntawm yooj yim distillation los ntawm nonvolatile phosphorous kua qaub.

Ib yam li ntawd, koj tuaj yeem nug, koj ua li cas acetyl chloride los ntawm acetic acid?

Synthesis. Acetyl chloride tau npaj thawj zaug hauv xyoo 1852 los ntawm Fab Kis tus kws kho mob Charles Gerhardt los ntawm kev kho cov poov tshuaj acetate nrog phosphoryl. tshuaj chloride . Cov tshuaj tiv thaiv ntawm acetic tshuaj anhydride nrog hydrogen tshuaj chloride ua ib tug sib tov ntawm acetyl chloride thiab acetic acid : (CH3CO)2O + HCl → CH3COB + CH3CO2H.

Tsis tas li ntawd, qhov kev txiav txim ntawm acetyl chloride yog dab tsi? Acetyl chloride yog ib qho tseem ceeb acetylating tus neeg sawv cev nrog lub peev xwm acylation muaj zog dua acetic anhydride . Nws yog dav siv hauv organic synthesis thiab dyes. Nws tseem yog lub catalyst rau carboxylic kua qaub kom muaj chlorination cov tshuaj tiv thaiv zoo li siv rau hydroxyl thiab amino quantitative tsom xam.

Ib sab saum toj, yog vim li cas acetyl chloride reactive dua acetic acid?

Acetyl chloride thiab acetic tshuaj anhydride yog ob qho tib si ntau reactive tshaj acetic acid . Cov tshuaj tiv thaiv yuav luag txhua qhov tawm los ntawm qhov kub thiab txias thiab tsis xav tau lub zog kua qaub catalyst. High yields thiab qis kub yuav yog ib qho tseem ceeb xav txog yog hais tias cov cawv yog kim los yog kub-rhiab heev.

Cov mis ntawm acetyl chloride yog dab tsi?

CH3 COJ

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