2-Bromo-4-methyl-5-nitropyridine (CAS# 23056-47-5)
| Awọn koodu ewu | R20 / 21/22 - ipalara nipasẹ ifasimu, ni olubasọrọ pẹlu awọ ara ati ti o ba gbe. R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara. |
| Apejuwe Abo | S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. S37 / 39 - Wọ awọn ibọwọ ti o dara ati aabo oju / oju |
| Kíláàsì ewu | IKANU |
Ọrọ Iṣaaju
2-Bromo-4-methyl-5-nitropyridine jẹ agbo-ara Organic. Atẹle jẹ ifihan si iseda rẹ, lilo, ọna igbaradi ati alaye aabo:
Didara:
2-Bromo-4-methyl-5-nitropyridine jẹ nkan ti o lagbara pẹlu awọn kirisita ofeefee. Ni iwọn otutu yara, o ṣọwọn jẹ tiotuka ninu omi, ṣugbọn o le jẹ tiotuka ninu awọn nkan ti o nfo Organic gẹgẹbi ethanol ati dimethylformamide.
Lo:
Apọpọ yii ni igbagbogbo lo bi agbedemeji ni iṣelọpọ Organic. O le ṣee lo ni igbaradi ti awọn agbo ogun heterocyclic ti o ni nitrogen miiran, gẹgẹbi awọn pyrroles ati indoles.
Ọna:
2-Bromo-4-methyl-5-nitropyridine le ti wa ni pese sile nipasẹ iyipada iyipada ti aniline. Labẹ awọn ipo ti o yẹ, aniline ti ṣe atunṣe pẹlu bromoacetic acid lati ṣe agbejade 2-bromoaniline. Lẹhinna, nipasẹ alkylation labẹ awọn ipo ipilẹ, 2-bromoaniline jẹ alkylated lati gba 2-bromo-4-methylaniline. Abajade 2-bromo-4-methylaniline jẹ nitrified nipasẹ nitrification lati gba 2-bromo-4-methyl-5-nitropyridine.
Alaye Abo:
2-Bromo-4-methyl-5-nitropyridine jẹ agbo-ara Organic ati pe o yẹ ki o wa ni ipamọ ati lo daradara. O jẹ ohun elo ijona ati pe o yẹ ki o wa ni ipamọ kuro ninu ina ti o ṣii ati awọn iwọn otutu giga. Lakoko iṣẹ, olubasọrọ pẹlu awọ ara, oju, ati atẹgun atẹgun yẹ ki o yago fun, ati pe o yẹ ki o ṣe iṣẹ labẹ awọn ipo atẹgun. Awọn ibọwọ aabo, awọn gilaasi ati awọn iboju iparada yẹ ki o wọ nigba lilo. Ni ọran ti olubasọrọ lairotẹlẹ, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa itọju ilera.
