O-Amino-p-Chlorophenol

Yin amfani da p-chlorophenol azaman albarkatun ƙasa, ana iya yin 2-nitro-p-chlorophenol ta hanyar nitration, sannan a rage shi don yin p-chloro-o-aminophenol.

(1) Samar da 2-nitro-p-chlorophenol: Yin amfani da p-chlorophenol azaman albarkatun ƙasa, nitrification tare da nitric acid.Ƙara p-chlorophenol distilled a hankali a cikin tanki mai motsawa tare da 30% nitric acid, kiyaye zafin jiki a 25-30℃, motsawa na kimanin awa 2, ƙara kankara don yin sanyi a ƙasa da 20℃, hazo, tace, da wanke kek ɗin tacewa zuwa Kongo Red, samfurin 2-nitrop-chlorophenol ya sami.

(2) Akwai hanyoyi guda biyu don rage 2-nitro-p-chlorophenol.Daya shine a rage tare da sodium disulfide.Da fari dai, 30% sodium hydroxide bayani da sulfur foda ana amfani da su don yin sodium disulfide bayani, da kuma 2-nitro-p-phenol an kara a cikin rabo don amsa a 95-100.°C, kuma abin ya ƙare.Bayan zafi mai zafi, ana cire tacewa tare da ruwan soda baking, sanyaya zuwa 20°C, tacewa, kuma ana wanke kek ɗin tacewa zuwa tsaka tsaki don samun ƙãre samfurin 2-nitro-p-chlorophenol.

Na biyu shine hanyar rage yawan hydrogenation.A gaban mai kara kuzari na nickel, an daidaita dakatarwar ruwa na 2-nitro-p-chlorophenol zuwa pH = 7 tare da sodium dihydrogen phosphate hydrate da sodium hydroxide aqueous bayani a matsa lamba hydrogen na 4.05Mpa da Hydrogenation raguwa a 60.°C. Bayan an gama amsawa, saki matsa lamba, maye gurbin da nitrogen, zafi zuwa 95°C, daidaita pH = 10.7 tare da sodium hydroxide, ƙara carbon da aka kunna da ƙasa diatomaceous, motsawa da ƙarfi, da tacewa.An daidaita tacewa zuwa pH = 5.2 (20°C) tare da maida hankali hydrochloric acid, sanyaya zuwa 0°C, tacewa, busasshe, kuma ana bi da su da sodium bisulfite.Maimaita aikin sau hudu, sannan a distill a 2.67kpa, tattara sassan a kusa da 80.°C, kuma ya bushe su don samun samfurin tare da yawan amfanin ƙasa na 97.7%.