2 4-Acide Difluorobenzoic （CAS # 1583-58-0)

Gusaba

2, 4-difluorobenzoic aside ni imiti yingenzi kandi yica udukoko twica udukoko, nka aside 2, 4-difluorobenzoic ikoreshwa cyane muguhuza imiti igabanya ubukana fluconazole, voriconazole hamwe nudukoko twangiza imiti hagati ya 4-fluorosalicylic, ibiyobyabwenge hagati ya 3, 5-difluoroaniline, nibindi . 2, 4-difluorobenzoic aside irashobora kandi gukoreshwa mubikoresho bya kristu. ikaba ifite ibyiza byagaciro gakomeye hamwe nibyiza byamasoko.

Kwitegura

Ongeramo 2, 4-dinitrotoluene namazi mumitsi ya reaction, hindura agaciro ka pH kuri 7, koga kandi ushushe kuri 75 ° C. Potasiyumu permanganate, magnesium sulfate na catalizike yo kwimura ibyiciro byongewe mubice. Nyuma yo kongeramo, komeza kubyutsa no kubyitwaramo mubushyuhe burigihe kumasaha 3. Shungura mugihe gishyushye kandi woze akayunguruzo hamwe namazi ashyushye. Huza akayunguruzo, acide hamwe na aside ya hydrochlorike ya 35% kugeza kuri pH 2-3, hariho umubare munini wimvura yera nyuma yuko kristu zimaze kugwa neza, kuyungurura, gukaraba, kongera gushyirwaho, no gukama kugirango ubone kristu yera nka acide 2,4-dinitrobenzoic . Ikigereranyo cya 2, 4-dinitrotoluene na potasiyumu permanganate ni 2.4: 1. Umusaruro wibicuruzwa wiyi ntambwe ni 90.7%.

ongeramo N, N-dimethylmethylphthalamide mubintu byabigenewe, ubushyuhe kugeza 100 ~ 110 ℃, shyushya 0.5 ~ 1h. Ongeramo fluoride yumye ya potasiyumu yumye hanyuma ukomeze ubushyuhe bwa 0.5-1h. Nyuma yibyo, aside 2, 4-dinitrobenzoic na hexyltrimethylammonium bromide yahise yongerwa mubwato bwa reaction icyarimwe, kandi ubushyuhe bwakomeje kugera kuri 120 ℃, ubushyuhe bwakomeje kandi reaction irakomeza. Nyuma ya 7h ya reaction ya reaction, umusemburo ugarurwa no kuyungurura, hanyuma amazi ya reaction akayungurura amavuta. Igice cyegeranijwe ni emulion yera. Nyuma yo guhagarara mugihe runaka, igice cyamavuta yibice byibanze kurohama hasi, amazi yera yera kumurongo wo hejuru arasukwa, hanyuma amavuta akonjeshwa kugirango agwe kristu yera kugirango abone ibicuruzwa bitemewe; ibicuruzwa bitavanze byongeye gushyirwaho, gushungura, kuyungurura, no gukama kugirango ubone kristu yera ya 2,4-difluorobenzoic aside. Ikigereranyo cyingana na 2, 4-dinitrobenzoic aside na potasiyumu fluoride ni 2.7: 1. Umusaruro wibicuruzwa wiyi ntambwe ni 72.4%.

Intangiriro
2,4-Difluorobenzoic aside ni ifumbire mvaruganda. Ibikurikira ni intangiriro kumiterere, imikoreshereze, uburyo bwo gutegura namakuru yumutekano ya acide 2,4-difluorobenzoic:

Ubwiza:
- Kugaragara: 2,4-Difluorobenzoic aside ni kirisiti yera ikomeye.
- Gukemura: Irashobora gushonga mumashanyarazi asanzwe nka Ethanol, methanol na methylene chloride.

Koresha:
- Ibikoresho byiza: Birashobora kandi gukoreshwa nkimwe mubikoresho fatizo byo gutegura ibikoresho bya optique na firime optique.
- Inganda zikoreshwa mu nganda: 2,4-difluorobenzoic aside irashobora gukoreshwa mu nganda za elegitoroniki, gutwikira no gukora plastike hamwe no kurwanya ruswa, kurwanya okiside ndetse n’ingaruka zo kurwanya ultraviolet.

Uburyo:
- 2,4-Difluorobenzoic aside irashobora kuboneka muguhindura fluor acide hydrofluoric hamwe na p-methylanisole.

Amakuru yumutekano:
- Mugihe ukora, umukungugu ugomba kwirinda kwirinda guhumeka no guhuza amaso. Muri icyo gihe, hagomba kubaho uburyo bwiza bwo guhumeka.
- Irinde guhura ningingo zikomeye za okiside cyangwa acide zikomeye kugirango wirinde ingaruka mbi