Nā mea like: Benzene,2,4-dichloro-1-methyl-;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-benzen

Helu CAS: 95-73-8
Kumu molekala: C7H6Cl2
Kaumaha Molekala: 161.03
Helu EINECS: 202-445-8

Nā waeʻano pili:nā huahana kūlana mahiʻai a me ke kaiapuni; triazole fungicides; nā mea waena o ka fungicide; nā mea waena pesticide; mea ola kino; nā mea waena; nā mea waena organik; Organics; ʻArel; C7; ʻO nā waiʻala halogenated; Aromatics; Nā Papa Hale; Chemicalbook Chemical Synthesis; Hydrogenated Hydrocarbons; ʻO OrganicBuildingBlocks; Nā huahana maʻamau noʻonoʻo; Nā poloka kūkulu hale kino; Pesticidessintermediate; Hydrocarbons Halogenated; Nā mea kino kemika.

2,4-Dichlorotoluene hoʻohana a me ke ʻano hana synthesis
Nā waiwai kemika: wai waihoʻoluʻu a ʻākala.
E hoʻohana:
1) Hoʻohana ʻia ma ke ʻano he waena o nā pesticides, dyes a me nā lāʻau lapaʻau, hoʻohana ʻia i ka hana ʻana o 2,4-dichlorobenzaldehyde, nā lāʻau lapaʻau e like me adipine, buprofen, etc.
2) 2,4-Dichlorotoluene mea he intermediate o ka bactericides diniconazole a me benzylchlorotriazole, a Chemicalbook no hoi ka mea maka no ka hoomakaukau ana o 2,4-dichlorobenzaldehyde.
3) Organic synthetic raw material, hoʻohana ʻia i ka ʻoihana lāʻau lapaʻau no ka hana ʻana i nā lāʻau antimalarial, Adepine, a me ka synthesis o ka waikawa ventral. Hoʻohana ʻia i loko o ka pesticide intermediates e hana i ka 2,4-dichlorobenzyl chloride, 2,4-dichlorobenzoyl chloride, a me 2,4-dichlorobenzoic acid.

ʻElua mau ala synthetic no nā ʻano hana.
1. Hoʻohana ke ʻano 1.2,4-dichlorotoluene i ka 2,4-diaminotoluene ma ke ʻano he maka, a loaʻa iā ia ma ka diazotization a me ka chlorination. E hoʻokomo i ka waika hydrochloric a me ka wai i loko o ka ipu hao, wela i 50 ℃, hoʻoheheʻe i ka 2,4-diaminotoluene ma lalo o ka hoʻoulu ʻana, a laila e hoʻokomo i ka waika hydrochloric a me ka cuprous chloride i loko o ka ipuhao, e hoʻohui i ka 1% sodium nitrite solution i loko o Chemicalbook, mālama ʻia ka mahana ma ma kahi o 60 ℃, e kū mālie no ka waiho ʻana, holoi ʻia ka huahana haʻahaʻa me ka wai a kū ʻole, hoʻohui ʻia ka alkali i ka alkali, a laila holoi ʻia me ka wai e wehe i ka alkali, ua hoʻokaʻawale ʻia ka crude 2,4-dichlorotoluene, a ʻO ka huahana i hoʻopau ʻia ka mahu. . Loaʻa ke ʻano 2.3-chloro-4-toluidine ma ka hopena diazotization me ka sodium nitrite, a me ka hopena Sandmeyer me ka copper chloride.

2.ʻO ke ʻano hana a me kāna ʻano hoʻomākaukau e like me kēia. Ma ke ʻano parachlorotoluene, hoʻokomo ʻia ka p-chlorotoluene a me ka mea hoʻoheheʻe ZrCl4 i loko o ka reactor, a hoʻokuʻu ʻia ke kinoea chlorine e hoʻokō i ka hopena chlorination. Hoʻomalu ʻia ka nui o ke kinoea chlorine a hiki i ka hopena o ka hopena a hoʻopau ʻia ka hopena. ʻO ka reactant i loaʻa he 85.1% o 2,4-dichlorotoluene. Inā hoʻohana ʻia ʻo FeCl3 ma ke ʻano he catalyst no ka hoʻokō ʻana i ka hopena chlorination ma 10 ~ 15 ℃ a hiki i ka 1.025 ka mānoanoa pili o ka hoʻonā, aia ka huahana i 2,4-dichlorotoluene a me 3,4-dichlorotoluene, a me ka lakio nui o nā mea ʻelua. ʻO nā māhele he 100:30 . Ma hope o ka pau ʻana o ka chlorination, holoi me ka wai a hiki i ka neutrality, a mālama me 10% NaOH solution ma 100～110 ℃ e wehe i nā mea haumia ʻē aʻe. Hoʻoponopono ʻia ka chloride i mālama ʻia a hoʻokaʻawale ʻia i loko o kahi hale kiaʻi hoʻoponopono kiʻekiʻe (2,4-dichloro Toluene bp200°C, 3,4-dichlorotoluene bp207°C). ʻO nā hua o 2,4-dichlorotoluene a me 3,4-dichlorotoluene he 64.4% a me 19.8%. Hoʻohana ʻo Ortho-chlorotoluene o-chlorotoluene i ka sulfuryl chloride ma ke ʻano he chlorinating agent e hoʻokō ai i ka hopena chlorination ma 142～196℃. ʻO nā huahana he 2,4-dichlorotoluene a me 2,3-dichlorotoluene, a unreacted ʻO ka hui ʻana o nā mea maka he 55%, 6%, a me 39%. Ma hope o ka distillation (2,4-dichlorotoluene bp 200 ° C, 2,3-dichlorotoluene bp 207-208 ° C, o-chlorotoluene bp 157-159 ° C), ua hoʻokaʻawale ʻia ka 2,4-dichlorotoluene. ʻO ke ʻano Ortho-nitrotoluene ʻO Ortho-nitrotoluene ka chlorinated i mua o ka FeCl3 catalyst ma 35 ~ 40 ℃. Ke piʻi ka mānoanoa pili o ka reactant i 1.320 (15 ℃), holoi i ka mea i kū ʻole, a loaʻa i ka reactant ka 15% o ka mea maka, 2-chloro-6-nitrotoluene 49%, 4-chloro-2-nitrotoluene 21% , a me 15% polychloride, ma hope o ka hoʻoponopono a me ka hoʻoponopono crystallization, ka Chemicalbook i 2-chloro-6-nitrotoluene ʻO nā hua o 4-chloro-2-nitrotoluene a me 4-chloro-2-nitrotoluene he 50% a me 30% pakahi. Loaʻa ka 4-chloro-2-nitrotoluene ma ka hydrogenation reduction reaction a me ka mahu distillation e loaʻa ai ka 4-chloro-2-amino. Toluene, diazotization a me ka hoʻohui ʻana iā CH2Cl2 no ka hopena Sandmeyer e loaʻa ai ka 2,4-dichlorotoluene. Hoʻohana ʻia ke ʻano hana no ka hana ʻana i ka 4-chloro-2-nitrotoluene ʻo ia ka huahana o ka 2-chloro-6-nitrotoluene (hoʻohana ʻia ma ke ʻano he waena o ka herbicide quinclorac). 2,4-Diaminotoluene Method 2,4-Diaminotoluene undergoes diazotization reaction ma ke alo o NaNO2 a me hydrochloric acid, a laila hana Sandmeyer pane ma ke alo o Cu2Cl2 e loaa 2,4-dichlorotoluene. ʻO ke ala 3-Chloro-4-methylaniline 3-chloro-4-methylaniline a me ka waika hydrochloric i hoʻohui ʻia i ka ipu hoʻonā, hoʻohui ʻia ka wai wai NaNO2 i ka dropwise ma 3 ~ 5 ℃, a hoʻopau ʻia ka hoʻohui i loko o 2~3h no ka diazotization Ma hope o ka ʻO ka hopena, ua hoʻohui ʻia ka wai diazotized i kahi hāmole hydrochloric acid i loaʻa iā Cu2Cl2 ma 2-5°C e hana i ka pane Sandmeyer e loaʻa ai ka 2,4-dichlorotoluene. Ma waena o nā ʻano i luna, ʻo ka chloride i hana ʻia me ka hoʻohana ʻana i ka p-chlorotoluene a me ka o-chlorotoluene ma ke ʻano he mau mea maka he nui nā haumia a he mau wahi paila like. Pono e hoʻohana i nā hale kiaʻi hoʻoponopono kiʻekiʻe i ka fractionate e loaʻa ai ma mua o 98% o 2,4-dichlorotoluene. He paʻakikī kēia mau ʻano hana ʻelua, a he kiʻekiʻe ke kumu kūʻai o nā lako. ʻAʻole kūpono ke ʻano 2,4-diaminotoluene no ka ʻoihana, a ʻo ke ʻano o-nitrotoluene a me ke ʻano 3-chloro-4-methylaniline e hoʻomākaukau ai i ka 2,4-dichlorotoluene i nā kumu kumu like, a pono nā mea ʻelua i ka diazotization a me Sandmeyer Ma ka pane. , aia ka hemahema o ka wai ʻino. Hoʻohana ʻia ke ʻano o-nitrotoluene e hana pū i ka 2-chloro-6-nitrotoluene, i hoʻemi hou ʻia e loaʻa ai ka 2-chloro-6-aminotoluene, he mea koʻikoʻi ia no ka hana ʻana i ka herbicide quinclorac.