isibhengezo_sekhasi

27019-47-2 β-Ala-Obzl.Tos

27019-47-2 β-Ala-Obzl.Tos

Incazelo emfushane:

Ukubukeka Impushana emhlophe ukuya kukristalu
MF I-C17H21NO5S
MW 351.42
Ubumsulwa 98+


Imininingwane Yomkhiqizo

Isimo sezokuthutha
Ingathuthwa ngezinga lokushisa elivamile.

Ncoma indlela yokuthumela
ngomoya, ngomhlaba noma ngolwandle

Isimo sesitoreji:
2-8 ° C, kufanele igcinwe endaweni evalekile, ebandayo futhi engenalanga.

impilo yeshelufu
cishe iminyaka emi-2

Ubuncane be-oda Ubuningi:
1kg (ingxoxo)

Isitifiketi:I-COA, indawo yokuncibilika, i-SpecificRotation [α]D20  Sizothumela noma iyiphi idatha oyifunayo.Kodwa emikhiqizweni eyenziwe ngokwezifiso, sithumela idatha entsha kakhulu ngemva kokuthi iphumile.
Impela, ungabona idatha ngaphambili njengereferensi.

I-D-Ls(tfa)-NCA (2)

Omqondofana

-Alaninebenzylesterp-toluenesulfanate usawoti;

I-Benzyl3-aMinopropanoate4-Methylbenzenesulfonate;

i-beta-alaninebenzyl;

H-β-Ala-OBzl · p-tosylateH-β-Alaninebenzylestertosylate;

H-SS-ALA-OBZLTOS;

H-.BETA.-ALANINEBENZYLESTERTOSYLATE;

Hb-Ala-OBzl·TosOH;

b-Alaninebenzylester4-toluenesulfonatesalt

Ukupakisha kwangaphakathi

Zivame ukusetshenziselwa ukupakisha impushana.Kuya ngemfuneko yamakhasimende.Ngakho-ke, sitshele ngenkani yakho ngaphambi kokupakisha uma unezicelo ezikhethekile.

Ukupakisha kwangaphakathi 2
Ukupakisha kwangaphakathi 1
Ukupakisha kwangaphakathi 3

ukupakisha kwangaphandle

1kg kuya ku-25kg Ukupakisha kwangaphandle kunzima.Futhi kunzima ukusika nokulimaza.Ingavikela imikhiqizo yakho ngokuphelele.

Ukupakisha kwangaphandle 3
Ukupakisha kwangaphandle 2
Ukupakisha kwangaphandle 1

Izinhlelo zokusebenza

I-Ester yenziwe ngokusabela kwe-esterization ye-asidi ye-inorganic noma i-organic acid noma utshwala.Utshwala noma i-phenol noma i-anhydride ene-asidi, utshwala ne-ethylene, i-asidi yamahhala kanye nokuphuma kokuphuma kwe-nitrogen okunamafutha nakho kungakhiqiza i-ester.I-hydrogen eku-alpha-carbon kuma-molecule e-ester ilahlekelwa uphuzo oludakayo lwengqamuzana nenye i-ester yengqamuzana ngaphansi kwezimo ze-alkali ukuze ikhiqize i-β-keto ester, ebizwa ngokuthi i-ester contraction reaction.Isibonelo, i-acetyl acetate ikhiqizwa ukukhiqiza i-acetyl ethyl acetate.Lokhu kusabela kubaluleke kakhulu ku-organic synthesis.

Igama le-ester livela egameni elihambisanayo le-carboxylic acid notshwala noma i-phenol, njengokuthi "i-asidi ethile ne-ester ethile".I-Circle esters ibizwa ngokuthi i-lactone (lactone).Izici zamakhemikhali ze-ester zifana ne-amyl niche anhydride, ejwayele ukusabela kwe-hydrolysis, utshwala kanye ne-ammonia.I-ester yezinga eliphansi iwuketshezi olunephunga elimnandi futhi oluguquguqukayo olungenambala, futhi i-ester ethuthukisiwe iqinile.I-Estes izincibilikisi ezibalulekile nezinto zokwenziwa zokwenziwa, kanti amanye ama-ester ayizidakamizwa ngokwazo.Ngokohlobo lwe-asidi, i-ester ingahlukaniswa ibe i-ester ye-inorganic acid ne-organic acid ester.I-Etate, i-ethyl acetate i-ester enamafutha, i-acetate i-ester enamakha, futhi i-namanonate i-ester eyi-cyclic.

imikhiqizo ehlobene

L-ALA DL-ALA β-Ala-ol H-β-Ala-OH
β-Ala-Obzl.Tos N-Me-Ala-Otbu.Hcl HL-Ala-OtBu·HCl I-DL-Ala-Otbu.Hcl
I-Pht-Beta-Ala-OH I-Boc-β-Ala-NH2 I-Boc-L-Beta-Ala-Osu I-Fmoc-β-Ala-OH
I-Fmoc-β-Ala-osu Z-β-L-Ala-OH Cbz-Beta-Ala-OSU β-Ala-Otbu.HCl
β-Ala-Ome.HCl

Kungani Khetha Thina

1. Mayelana ne-MOQ: Singayilungisa ngokuvumelana nemfuneko yakho.
2. Mayelana nesampula: Isampula idinga imali yesampula, okungaba yimpahla ongayilanda noma ongayikhokha kithi kusengaphambili.
3. I-Mold workshop, ingenziwa ngezifiso ngokusho kwenani lamamodeli.
4. Sinikeza isevisi engcono kakhulu.Ithimba labadayisi abanolwazi selisebenzela wena.
5. Mayelana nokushintshisana: Ngicela ungithumele i-imeyili noma ungixoxele ngesikhathi esivumelana nawe.


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