BOC-N-Methyl-L-alanine（CAS# 16948-16-6)
Morearea me te Haumaru
| Whakaahuatanga Haumaru | 24/25 – Kaua e pa ki te kiri me nga kanohi. |
| WGK Tiamana | 3 |
| Waehere HS | 2924 19 00 |
| Te akomanga morearea | TANGATA |
BOC-N-Methyl-L-alanine（CAS# 16948-16-6) Nga korero
| tono | Ka taea te whakamahi i te BOC-N-methyl-L-alanine ehara i te mea anake mo te whakahiato pūmua, engari ano hoki hei whakanui i te reka, hei whakamarumaru me te whakamarumaru i roto i te mara kai, hei rongoa rongoa i roto i te mara rongoa me te whakahiato ngawari i roto i te mara matū o ia ra. |
| whakarite | tetrahydrofuran (80 mL) otinga o te 1- boc-alanine (5g, 26.4 mmol) i tapirihia, paura pai KOH (10.4g, 187 mmol) i te 0 ℃, katahi ka taapirihia te tetrabutylammonium bisulfate (0.5g, 10% te taumaha). Na, dimethyl sulfate (10 mL, 105 mmol) ka taapirihia he maturuturu mo te neke atu i te 15 meneti. Kohuatia mo tetahi atu 30 meneti ka tapirihia te wai (50 mL). Whai muri i te whakakorikori i te pāmahana rūma mō te 5 hāora, ka tāpirihia te 20% waihāhā haukinia (20 mL). Ringihia te tauhohenga ki te etera (100 mL), wehea te paparanga wai, ka tango i te paparanga waro ki te wairewa wai NaHCO3 kukū (2 × 40 mL). I whakawakawahia te paparanga wai whakauru ki te 1M KHSO4 ki te pH 1 ka tangohia me te ethyl acetate (2×200 mL). Ka whakakotahihia nga paparanga waro, ka whakamarokehia (Na2SO4), ka tātarihia, ka whakakoi. Ko te hua ka puta ko BOC-N-methyl-L-alanine. Pata, hua 4.3g, 80%. |
Tuhia to korero ki konei ka tukuna mai ki a matou
