BOC-N-Methyl-L-alanine（CAS# 16948-16-6)
Pilikia a palekana
| Ka wehewehe palekana | 24/25 - E pale i ka pili ʻana me ka ʻili a me nā maka. |
| WGK Kelemānia | 3 |
| HS Code | 2924 19 00 |
| Papa Hazard | HOOLAHA |
BOC-N-Methyl-L-alanine（CAS# 16948-16-6) ʻIkepili
| palapala noi | Hiki ke hoʻohana ʻia ʻo BOC-N-methyl-L-alanine ʻaʻole wale no ka synthesis protein, akā e like me ka hoʻonui ʻana i ka ʻono, preservative a me ka mālama ʻana i ka māla meaʻai, e like me ka lāʻau lapaʻau i ka lāʻau lapaʻau a me ka synthesis surfactant maʻalahi i kēlā me kēia lā kemika. |
| hoomakaukau ana | tetrahydrofuran (80 mL) solution o 1- boc-alanine (5g, 26.4 mmol) ua hoʻohui ʻia, pauda maikaʻi KOH (10.4g, 187 mmol) i hoʻohui ʻia ma 0 ℃, a laila hoʻohui ʻia ka tetrabutylammonium bisulfate (0.5g, 10% ma ke kaumaha). A laila, dimethyl sulfate (10 mL, 105 mmol) ua hoʻohui ʻia i ka dropwise no nā minuke 15. E hoʻoulu hou no 30 mau minuke a hoʻohui i ka wai (50 mL). Ma hope o ka hoʻoulu ʻana ma ka lumi wela no 5 mau hola, ua hoʻohui ʻia ka 20% ammonium hydroxide aqueous solution (20 mL). E hoʻoheheʻe i ka hopena me ka ether (100 mL), e hoʻokaʻawale i ka papa wai, a e unuhi i ka ʻāpana organik me ka wai wai NaHCO3 saturated (2 × 40 mL). Ua ʻakika ʻia ka papa wai hui ʻia me 1M KHSO4 i ka pH 1 a unuhi ʻia me ka ethyl acetate (2×200 mL). Hoʻohui ʻia nā papa organik, maloʻo (Na2SO4), kānana a paʻa. Ua ʻike ʻia ka huahana i loaʻa ʻo BOC-N-methyl-L-alanine. Pāpaʻa, hua 4.3g, 80%. |
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