Cov txheej txheem:
Video: Yuav ua li cas amides tsim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov sib ntxiv ntawm ammonia (NH 3) rau acarboxylic acid ua ib qho amide , tab sis cov tshuaj tiv thaiv qeeb heev hauv chav kuaj ntawm chav tsev kub. Cov dej molecules tau tawg tawm, thiab ib daim ntawv cog lus yog tsim nruab nrab ntawm cov nitrogen atom thiab carbonyl carbon atom. Hauv cov cell muaj sia, amideformation yog catalyzed los ntawm enzymes.
Khaws qhov no hauv kev pom, koj ua amides li cas?
Kev npaj ntawm Amides
- Carboxylic acid tuaj yeem hloov mus rau amides los ntawm kev siv DCC ua tus neeg sawv cev.
- Kev hloov pauv ncaj qha ntawm carboxylic acid mus rau amide los ntawm cov tshuaj tiv thaiv nrog ib qho amine.
- Acid chlorides teb nrog ammonia, 1o amines thiab 2o amines tsim amides.
Ib tug kuj yuav nug, ua li cas carboxylic acids tsim amide? Cov tshuaj tiv thaiv ncaj qha ntawm a carboxylic acid nrog anamine yuav xav tias yuav nyuaj vim qhov yooj yim aminewould deprotonate lub carboxylic acid rau daim ntawv heev unreactive carboxylate. Txawm li cas los xij, thaum cov ntsev ammoniumcarboxylate rhuab mus rau qhov kub siab tshaj 100 oCwater tau tsav tawm thiab ib qho amide yog tsim.
Ib yam li ntawd, amines tsim li cas?
Cov tshuaj tiv thaiv ntawm ammonia nrog ib qho alkyl halide ua rau tothe tsim ntawm qhov tseem ceeb amine . Qhov tseem ceeb amine uas yog tsim tuaj yeem cuam tshuam nrog alkylhalide, uas ua rau muaj kev cuam tshuam amine uas tuaj yeem ua rau muaj kev cuam tshuam rau trisubstituted amine . Yog li, thealkylation ntawm ammonia ua rau kev sib xyaw ntawm cov khoom.
Dab tsi yog qhov txawv ntawm amide thiab amine?
Amines yog cov tebchaw uas tuaj yeem saib cov asderivatives ntawm ammonia. Tus cwj pwm los ntawm Nitrogen koom nrog tsawg kawg ib pawg alkyl. Yog ib pawg carbonyl dag nruab nrab nitrogen thiab R lub compound hu ua ib amide.
Pom zoo:
Dab tsi yog qhov cuab yeej tsim nyog ua ntej kev tshawb xav ntawm tes yuav tsim tau?
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