Izithethantonye: iBenzene,2,4-dichloro-1-methyl-;iToluene,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 yemolekyuli: C7H6Cl2
Ubunzima beMolekyuli: 161.03
Inombolo ye-EINECS: 202-445-8

Iindidi ezinxulumeneyo:iimveliso ezisemgangathweni zezolimo nezendalo; ii-fungicides ze-triazole; ii-intermediates ze-fungicide; ii-intermediates ze-pesticide; izinto eziluhlaza ze-organic; ii-intermediates; ii-intermediates ze-organic; ii-Organic; i-Aryl; i-C7; ii-Halogenated Hydrocarbons; ii-Aromatics; iiBhloko zokwakha; i-Chemicalbook Chemical Synthesis; ii-Hydrogenated Hydrocarbons; iiBhloko zokwakha ze-Organic; iimveliso ezisemgangathweni ze-Analytical; iiBhloko zokwakha ze-Organic; ii-Pesticides eziphakathi; ii-Halogenated hydrocarbons; izinto eziluhlaza ze-organic chemical.

Indlela yokusebenzisa kunye nokudibanisa i-2,4-Dichlorotoluene
Iimpawu zeekhemikhali: ulwelo olungenambala nolucacileyo.
Sebenzisa:
1) Isetyenziswa njengezinto ezisetyenziswa phakathi kwezibulali zinambuzane, iidayi kunye namayeza, isetyenziswa ekuveliseni i-2,4-dichlorobenzaldehyde, iziyobisi ezifana ne-adipine, i-buprofen, njl.
2) I-2,4-Dichlorotoluene yinxalenye ephakathi ye-bactericides i-diniconazole kunye ne-benzylchlorotriazole, kwaye iChemicalbook ikwayindlela yokulungisa i-2,4-dichlorobenzaldehyde.
3) Izinto eziluhlaza ezenziwe ngezinto eziphilayo, ezisetyenziswa kwishishini lamayeza ukuvelisa amayeza okulwa nemalariya, i-Adepine, kunye nokuhlanganiswa kwe-ventral acid. Zisetyenziswa kwi-intermediates ze-pesticide ukuvelisa i-2,4-dichlorobenzyl chloride, i-2,4-dichlorobenzoyl chloride, kunye ne-2,4-dichlorobenzoic acid.

Kukho iindlela ezimbini zokwenziwa kweendlela zokuvelisa.
1. Indlela ye-1.2,4-dichlorotoluene isebenzisa i-2,4-diaminotoluene njengezinto eziluhlaza, kwaye ifunyanwa nge-diazotization kunye ne-chlorination. Faka i-hydrochloric acid kunye namanzi kwimbiza yokusabela, ufudumale ukuya kwi-50℃, unyibilikise i-2,4-diaminotoluene phantsi kokuxubha, uze ufake i-hydrochloric acid kunye ne-cuprous chloride embizeni, yongeza isisombululo se-1% sodium nitrite ngokulinganayo kwiChemicalbook. Ubushushu bugcinwa malunga ne-60℃, yima ukuze kubekwe ungqimba, imveliso engaphantsi ekrwada ihlanjwe ngamanzi ide ingabi nanto, i-alkali yongezwa kwi-alkali, ize ihlanjwe ngamanzi ukususa i-alkali, i-2,4-dichlorotoluene ekrwada yahlulwe, kwaye imveliso egqityiweyo inyibilikiswe ngomphunga. . Indlela ye-2.3-chloro-4-toluidine ifunyanwa nge-diazotization reaction kunye ne-sodium nitrite, kunye ne-Sandmeyer reaction kunye ne-copper chloride.

2.Indlela yokuvelisa kunye neendlela zokulungiselela zezi zilandelayo. Kwindlela ye-parachlorotoluene, i-p-chlorotoluene kunye ne-catalyst ZrCl4 zifakwa kwi-reactor, kwaye igesi ye-chlorine ikhutshwa umoya ukuze yenze i-chlorination reaction. Ubungakanani begesi ye-chlorine bulawulwa ukuya ekupheleni kwe-reaction kwaye i-reaction iyeke. I-reactant efunyenweyo iqulethe i-85.1% ye-2,4-dichlorotoluene. Ukuba i-FeCl3 isetyenziswa njenge-catalyst yokwenza i-chlorination reaction kwi-10 ～15 ℃ de kube yi-relative density yesisombululo yi-1.025, imveliso iqulethe i-2,4-dichlorotoluene kunye ne-3,4-dichlorotoluene, kwaye umlinganiselo wobunzima bezinto ezimbini yi-100:30 . Emva kokuba i-chlorination igqityiwe, hlamba ngamanzi ukuya kwi-neutral, kwaye unyange ngesisombululo se-10% se-NaOH kwi-100 ～110 ℃ ukususa ezinye izinto ezingcolileyo. I-chloride ecociweyo iyalungiswa kwaye yahlulwe kwinqaba yokulungisa esebenza kakuhle (2,4-dichloro Toluene bp200°C, 3,4-dichlorotoluene bp207°C). Imveliso ye-2,4-dichlorotoluene kunye ne-3,4-dichlorotoluene yayiyi-64.4% kunye ne-19.8%, ngokulandelelana. Indlela ye-Ortho-chlorotoluene i-o-chlorotoluene isebenzisa i-sulfuryl chloride njenge-arhente ye-chlorinating ukwenza i-chlorination reaction kwi-142 ~ 196℃. Iimveliso ziyi-2,4-dichlorotoluene kunye ne-2,3-dichlorotoluene, kwaye aziphendulwanga. Ukwakheka kwezinto eziluhlaza yi-55%, 6%, kunye ne-39%, ngokulandelelana. Emva kokuhluzwa (2,4-dichlorotoluene bp 200°C, 2,3-dichlorotoluene bp 207-208°C, o-chlorotoluene bp 157-159°C), i-2,4-dichlorotoluene yahlulwahlulwa. Indlela ye-Ortho-nitrotoluene I-Ortho-nitrotoluene ifakwa i-chlorine xa kukho i-FeCl3 catalyst kwi-35～40℃. Xa uxinano oluhambelanayo lwe-reactant lufikelela kwi-1.320 (15℃), hlambulula izinto zibe zingathathi cala, kwaye i-reactant iqulethe i-15% yezinto ezikrwada, i-2-chloro-6-nitrotoluene 49%, i-4-chloro-2-nitrotoluene 21%, kunye ne-15% ye-polychloride, emva kokulungiswa kunye nonyango lwe-crystallization, i-Chemicalbook to 2-chloro-6-nitrotoluene Imveliso ye-4-chloro-2-nitrotoluene kunye ne-4-chloro-2-nitrotoluene yi-50% kunye ne-30% ngokulandelanayo. I-4-chloro-2-nitrotoluene ifunyanwa nge-hydrogenation reduction reaction kunye ne-steam distillation ukuze kufunyanwe i-4-chloro-2-amino. I-Toluene, i-diazotization kunye nokongeza i-CH2Cl2 ye-Sandmeyer reaction ukuze kufunyanwe i-2,4-dichlorotoluene. Le ndlela isetyenziselwa ukuvelisa i-4-chloro-2-nitrotoluene eyimveliso ephuma kwi-2-chloro-6-nitrotoluene (esetyenziswa njenge-intermediate ye-herbicide quinclorac). Indlela ye-2,4-Diaminotoluene 2,4-Diaminotoluene ifumana i-diazotization reaction phambi kwe-NaNO2 kunye ne-hydrochloric acid, ize emva koko yenze i-Sandmeyer reaction phambi kwe-Cu2Cl2 ukuze kufunyanwe i-2,4-dichlorotoluene. Indlela ye-3-Chloro-4-methylaniline 3-chloro-4-methylaniline kunye ne-hydrochloric acid zongezwa kwi-kettle ye-reaction, isisombululo samanzi se-NaNO2 songezwa ngokuhla kwi-3～5℃, kwaye ukongezwa kugqitywe ngaphakathi kweeyure ezi-2～3 ze-diazotization Emva kwe-reaction, ulwelo lwe-diazotized longezwa ngokuhla kwisisombululo se-hydrochloric acid esine-Cu2Cl2 kwi-2-5°C ukuze kwenziwe i-Sandmeyer reaction ukuze kufunyanwe i-2,4-dichlorotoluene. Phakathi kweendlela ezingentla, i-chloride eveliswa ngokusebenzisa i-p-chlorotoluene kunye ne-o-chlorotoluene njengezinto eziluhlaza iqulethe ukungcola okuninzi kwaye inamanqaku okubila afanayo. Kuyimfuneko ukusebenzisa iitowers zokulungisa ezisebenza kakuhle ukuze ziqhekeze ukuze kufunyanwe ngaphezulu kwe-98% ye-2,4-dichlorotoluene. Ezi ndlela zimbini zinzima ukuzisebenzisa, kwaye iindleko zotyalo-mali lwezixhobo ziphezulu. Indlela ye-2,4-diaminotoluene ayifanelekanga kwimizi-mveliso, kwaye indlela ye-o-nitrotoluene kunye nendlela ye-3-chloro-4-methylaniline yokulungiselela i-2,4-dichlorotoluene zinemigaqo efanayo esisiseko, kwaye zombini zifuna i-diazotization kunye ne-Sandmeyer. Ukuphendula, kukho ukusilela kwamanzi amaninzi amdaka. Indlela ye-o-nitrotoluene isetyenziselwa ukuvelisa i-2-chloro-6-nitrotoluene, encitshiswa ngakumbi ukuze kufunyanwe i-2-chloro-6-aminotoluene, eyindawo ebalulekileyo yokuvelisa i-quinclorac yeherbicide.