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BOC-N-Methyl-L-alanine (CAS# 16948-16-6) Isithombe Esifakiwe
  • BOC-N-Methyl-L-alanine (CAS# 16948-16-6) 1

BOC-N-Methyl-L-alanine (CAS# 16948-16-6)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C9H17NO4
I-Molar Mass 203.24
Ukuminyana 1.111±0.06 g/cm3(Kubikezelwe)
I-Melting Point 88-92°C
I-Boling Point 296.3±19.0 °C(Kubikezelwe)
I-Flash Point 133°C
Ukuncibilika I-Chloroform (Kancane), i-DMSO (Kancane), i-Ethanol (Kancane), i-Methanol (Kancane)
I-Vapor Presure 0.00035mmHg ku-25°C
Ukubukeka Cishe impushana emhlophe
Umbala Emhlophe
I-BRN 2366513
pKa 4.03±0.10(Okubikezelwe)
Isimo Sesitoreji Gcina endaweni emnyama, evalwe endaweni eyomile, Emazingeni Okushisa Egumbi
I-Refractive Index 1.466
I-MDL I-MFCD00037242

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Ubungozi Nokuphepha

Incazelo Yokuphepha 24/25 - Gwema ukuthintana nesikhumba namehlo.
I-WGK Germany 3
Ikhodi ye-HS 2924 19 00
I-Hazard Class I-IRRITANT

BOC-N-Methyl-L-alanine (CAS# 16948-16-6) Ulwazi

isicelo I-BOC-N-methyl-L-alanine ingasetshenziswa hhayi kuphela ekuhlanganiseni amaprotheni, kodwa futhi njengesithuthukisi ukunambitheka, isilondolozi kanye nesilondolozi emkhakheni wokudla, njengezinto zokusetshenziswa kwemithi emkhakheni wezokwelapha kanye nokuhlanganiswa kwe-surfactant okuncane emkhakheni wamakhemikhali wansuku zonke.
ukulungiselela Isixazululo se-tetrahydrofuran (80 mL) se-1-boc-alanine (5g, 26.4 mmol) sengeziwe, impushana engu-KOH (10.4g, 187)
mmol) yengezwe ku-0 ℃, kwase kwengezwa i-tetrabutylammonium bisulfate (0.5g, 10% ngesisindo). Bese, i-dimethyl sulfate (10 mL, 105
mmol) yengezwe nge-dropwise imizuzu engaphezu kwe-15. Govuza eminye imizuzu engama-30 bese wengeza amanzi (50 ml). Ngemva kokushukumisa ekamelweni lokushisa amahora angu-5, 20% i-ammonium hydroxide aqueous solution (20 ml) yengezwa. Nciphisa ukusabela nge-ether (100
mL), hlukanisa ungqimba lwamanzi, bese ukhipha isendlalelo sezinto eziphilayo ngesisombululo samanzi se-NaHCO3 esigcwele (2 × 40 mL). Isendlalelo samanzi esixubile sifakwe i-asidi ngo-1M
I-KHSO4 ukuya ku-pH 1 futhi ikhishwe nge-ethyl acetate (2×200
mL). Izingqimba ze-organic zihlanganisiwe, zomisiwe (Na2SO4), zihlungiwe futhi zigxiliswe. Umkhiqizo owumphumela uhlonzwe njenge-BOC-N-methyl-L-alanine. Ibhotela, isivuno 4.3g, 80%.
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