Amagama afanayo: i-Benzene,2,4-dichloro-1-methyl-; i-Toluene, 2,4-dichloro-;2,4-dichloro-1-methylbenzene;2,4-DCT;2,4-DICHLOROTOLUENE;2,4-DICHLOROMETHYLBENZENE;1,3-DICHLORO-4-METHYLBENZENE;2,4-dichloro-1-methyl-benzene

Inombolo ye-CAS: 95-73-8
Ifomula yama-molecule: C7H6Cl2
Isisindo sama-molecule: 161.03
Inombolo ye-EINECS: 202-445-8

Izigaba ezihlobene:imikhiqizo ejwayelekile yezolimo neyezemvelo; izibulala-zinambuzane ze-triazole; izibulala-zinambuzane eziphakathi; izibulala-zinambuzane eziphakathi; izinto zokusetshenziswa eziphilayo; izibulala-zinambuzane eziphakathi; izibulala-zinambuzane eziphakathi; izinto eziphilayo eziphakathi; izinto eziphilayo eziphakathi; Izinto eziphilayo eziphakathi; I-Aryl; C7; Ama-Hydrocarbon Ane-Halogenated; Ama-Aromatic; Amabhulokhi Okwakha; Ukwenziwa Kwamakhemikhali E-Chemicalbook; Ama-Hydrocarbon Ane-Hydrogenated; Amabhulokhi Okwakha E-Organic; Imikhiqizo ejwayelekile yokuhlaziya; Amabhulokhi okwakha E-Organic; Izibulala-zinambuzane eziphakathi; Ama-hydrocarbon Ane-Halogenated; Izinto zokusetshenziswa zamakhemikhali E-Organic.

Indlela yokusebenzisa kanye nokuhlanganisa i-2,4-Dichlorotoluene
Izakhiwo zamakhemikhali: uketshezi olungenambala nolusobala.
Sebenzisa:
1) Isetshenziswa njengezinto ezisetshenziswayo phakathi kwezibulala-zinambuzane, udayi kanye nemithi, esetshenziswa ekukhiqizweni kwe-2,4-dichlorobenzaldehyde, izidakamizwa ezifana ne-adipine, i-buprofen, njll.
2) I-2,4-Dichlorotoluene iyi-medicament ephakathi kwe-bactericides i-diniconazole ne-benzylchlorotriazole, kanti i-Chemicalbook nayo iyimpahla eluhlaza yokulungiselela i-2,4-dichlorobenzaldehyde.
3) Izinto zokwenziwa ze-organic, ezisetshenziswa embonini yezemithi ekukhiqizweni kwemithi yokulwa nomalaleveva, i-Adepine, kanye nokuhlanganiswa kwe-ventral acid. Zisetshenziswa ezikhungweni zokwelapha izibulala-zinambuzane ukukhiqiza i-2,4-dichlorobenzyl chloride, i-2,4-dichlorobenzoyl chloride, kanye ne-2,4-dichlorobenzoic acid.

Kunezindlela ezimbili zokwenziwa zezindlela zokukhiqiza.
1. Indlela ye-1.2,4-dichlorotoluene isebenzisa i-2,4-diaminotoluene njengezinto zokusetshenziswa, futhi itholakala nge-diazotization kanye ne-chlorination. Faka i-hydrochloric acid namanzi ebhodweni lokusabela, ufudumale ku-50℃, uncibilikise i-2,4-diaminotoluene ngaphansi kokuxubha, bese ufaka i-hydrochloric acid kanye ne-cuprous chloride ebhodweni, engeza isisombululo se-1% sodium nitrite ngokulinganayo ku-Chemicalbook. Izinga lokushisa ligcinwa cishe ku-60℃, lime ukuze kubekwe ungqimba, umkhiqizo ophansi ongcolile ugezwa ngamanzi uze ungathathi hlangothi, i-alkali ingezwe ku-alkali, bese igezwa ngamanzi ukuze kususwe i-alkali, i-2,4-dichlorotoluene engcolile iyahlukaniswa, bese umkhiqizo oqediwe uhlanzwa ngomusi. . Indlela ye-2.3-chloro-4-toluidine itholakala nge-diazotization reaction ne-sodium nitrite, kanye ne-Sandmeyer reaction ne-copper chloride.

2.Indlela yokukhiqiza kanye nezindlela zayo zokulungiselela yilezi ezilandelayo. Endleleni ye-parachlorotoluene, i-p-chlorotoluene kanye ne-catalyst ZrCl4 kufakwa ku-reactor, bese kukhishwa igesi ye-chlorine ukuze kwenziwe ukusabela kwe-chlorination. Inani legesi ye-chlorine lilawulwa kuze kube sekupheleni kokusabela futhi ukusabela kuyamiswa. I-reactant etholakele iqukethe u-85.1% we-2,4-dichlorotoluene. Uma i-FeCl3 isetshenziswa njenge-catalyst ukuze kwenziwe ukusabela kwe-chlorination ku-10 ～15 ℃ kuze kube yilapho ubuningi besisombululo bungu-1.025, umkhiqizo uqukethe i-2,4-dichlorotoluene kanye ne-3,4-dichlorotoluene, kanti isilinganiso sobuningi bezingxenye ezimbili singu-100:30 . Ngemva kokuthi i-chlorination isiqediwe, geza ngamanzi kuze kube yilapho ungathathi hlangothi, bese uphatha ngesisombululo se-NaOH esingu-10% ku-100 ～110 ℃ ukususa okunye ukungcola. I-chloride elashwe kahle iyalungiswa futhi ihlukaniswe embhoshongweni wokulungisa osebenza kahle kakhulu (2,4-dichloro Toluene bp200°C, 3,4-dichlorotoluene bp207°C). Imikhiqizo ye-2,4-dichlorotoluene kanye ne-3,4-dichlorotoluene yayingu-64.4% kanye no-19.8%, ngokulandelana. Indlela ye-Ortho-chlorotoluene i-o-chlorotoluene isebenzisa i-sulfuryl chloride njenge-ejenti ye-chlorinating ukwenza ukusabela kwe-chlorination ku-142 ~ 196℃. Imikhiqizo iyi-2,4-dichlorotoluene kanye ne-2,3-dichlorotoluene, futhi ayiphendulwanga. Ukwakheka kwezinto zokusetshenziswa kungu-55%, 6%, kanye no-39%, ngokulandelana. Ngemva kokuhluzwa (2,4-dichlorotoluene bp 200°C, 2,3-dichlorotoluene bp 207-208°C, o-chlorotoluene bp 157-159°C), i-2,4-dichlorotoluene yahlukaniswa. Indlela ye-Ortho-nitrotoluene I-Ortho-nitrotoluene ifakwa i-chlorine lapho kukhona i-FeCl3 catalyst ku-35～40℃. Uma ubuningi be-reactant bufika ku-1.320 (15℃), geza izinto zibe zingathathi hlangothi, bese i-reactant iqukethe u-15% wezinto zokusetshenziswa, i-2-chloro-6-nitrotoluene 49%, i-4-chloro-2-nitrotoluene 21%, kanye ne-15% polychloride, ngemuva kokulungiswa kanye nokwelashwa kwe-crystallization, i-Chemicalbook to 2-chloro-6-nitrotoluene Imikhiqizo ye-4-chloro-2-nitrotoluene kanye ne-4-chloro-2-nitrotoluene ingu-50% kanye no-30% ngokulandelana. I-4-chloro-2-nitrotoluene itholakala ngokusabela kokunciphisa i-hydrogenation kanye ne-steam distillation ukuze kutholakale i-4-chloro-2-amino. I-Toluene, i-diazotization kanye nokwengeza i-CH2Cl2 yokusabela kwe-Sandmeyer ukuze kutholakale i-2,4-dichlorotoluene. Le ndlela isetshenziselwa ukukhiqiza i-4-chloro-2-nitrotoluene engumkhiqizo ongaphansi kwe-2-chloro-6-nitrotoluene (esetshenziswa njenge-intermediate ye-herbicide quinclorac). Indlela ye-2,4-Diaminotoluene 2,4-Diaminotoluene idlula ekusabeleni kwe-diazotization lapho kukhona i-NaNO2 kanye ne-hydrochloric acid, bese yenza ukusabela kwe-Sandmeyer lapho kukhona i-Cu2Cl2 ukuze kutholakale i-2,4-dichlorotoluene. Indlela ye-3-Chloro-4-methylaniline 3-chloro-4-methylaniline kanye ne-hydrochloric acid zengezwa eketheni yokusabela, isixazululo samanzi se-NaNO2 sengezwa ngokuwa phansi ku-3～5℃, futhi ukwengeza kuqediwe zingakapheli amahora angu-2～3 ukuze kukhishwe i-diazotization Ngemva kokusabela, uketshezi oluyi-diazotized lufakwa ngokuwa phansi esixazululweni se-hydrochloric acid esiqukethe i-Cu2Cl2 ku-2-5°C ukuze kwenziwe ukusabela kwe-Sandmeyer ukuze kutholakale i-2,4-dichlorotoluene. Phakathi kwezindlela ezingenhla, i-chloride ekhiqizwa ngokusebenzisa i-p-chlorotoluene kanye ne-o-chlorotoluene njengezinto zokusetshenziswa iqukethe ukungcola okuningi futhi inamaphuzu okubila afanayo. Kuyadingeka ukusebenzisa imibhoshongo yokulungisa esebenza kahle kakhulu ukuze ihlukaniswe ukuze kutholakale okungaphezu kuka-98% kwe-2,4-dichlorotoluene. Lezi zindlela ezimbili kunzima ukuzisebenzisa, futhi izindleko zokutshalwa kwezimali kwemishini ziphezulu. Indlela ye-2,4-diaminotoluene ayifanelekeli ukwenziwa kwezimboni, kanti indlela ye-o-nitrotoluene kanye nendlela ye-3-chloro-4-methylaniline yokulungiselela i-2,4-dichlorotoluene inezimiso ezifanayo eziyisisekelo, futhi zombili zidinga i-diazotization kanye ne-Sandmeyer. Ukuphendula, kukhona ukushoda kwamanzi amaningi angcolile. Indlela ye-o-nitrotoluene isetshenziselwa ukukhiqiza i-2-chloro-6-nitrotoluene, encishiswa kakhulu ukuze kutholakale i-2-chloro-6-aminotoluene, okuyisikhungo esibalulekile sokukhiqizwa kwe-herbicide quinclorac.