2-Cyano-4-methylpyridine（CAS# 1620-76-4)
Morearea me te Haumaru
| Nga Tohu Whakamate | Xi – Irritant |
| Waehere Morearea | R20/21/22 – He kino ma te horomia, ka pa ki te kiri me te horomia. R41 – He kino kino ki nga kanohi R37/38 – He whakapataritari ki te punaha manawa me te kiri. R22 – He kino ki te horomia R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri. |
| Whakaahuatanga Haumaru | S22 – Kaua e pupuhi puehu. S36/37 – Mau kakahu whakamarumaru me nga karapu tika. S39 – Mau whakamarumaru kanohi / kanohi. S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora. S36 – Mau kakahu whakamarumaru tika. |
| UN ID | 3276 |
| WGK Tiamana | 3 |
| Waehere HS | 29333990 |
| Te akomanga morearea | 6.1 |
| Roopu Tarapi | III |
2-Cyano-4-methylpyridine（CAS# 1620-76-4) Nga korero
| Taupānga | Ko te 2-cyano-4-methylpyridine he takawaenga pararopi, ka taea te waikura tuatahi mai i te 4-methylpyridine hei whakarite i te 4-Methyl-pyridine-N-oxide, katahi ka whakakapihia ki te roopu cyano kia whiwhi. Ka taea te whakamahi i te 4-methyl-pyridine-N-oxide ki te whakarite i te 4-methyl -2, 6-dicarboxypyridine, 4-methyl -2, 6-dicarboxypyridine he tino whaihua pyridine derivative me te pūhui takawaenga tino nui, e whakamahia whānuitia ana. i roto i te mara o te rongoa. |
| whakarite | 4-methyl-pyridine-N-oxide (0.109g,1mmol), trimethylcyanosilane (0.119g,1.2mmol), H-diethyl phosphite (0.276g,2mmol), carbon tetrachloride (0.308g,2mmol), triethylamine (0.202g, 2mmol) me te acetonitrile 10mL i roto i te 50mL ipu toru-waha, tauhohe i te pāmahana rūma mo te 6h. I muri i te otinga o te tauhohenga, ka tangohia te whakarewa i raro i te pehanga iti ka wehea e te chromatography tīwae (petroleum ether/ethyl acetate, V/V = 4:1) ki te whiwhi pūhui taumata wai kore tae me te 80% hua. |
Tuhia to korero ki konei ka tukuna mai ki a matou
