Mawu ofanana ndi mawu: 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

Nambala ya CAS: 95-73-8
Fomula ya maselo: C7H6Cl2
Molecular kulemera: 161.03
Nambala ya EINECS: 202-445-8

Magulu ofananira:zinthu zaulimi ndi zachilengedwe; triazole fungicides; mankhwala a fungicide; mankhwala ophera tizilombo; organic zopangira; zapakati; organic intermediates; Zachilengedwe; Aryl; C7; Halogenated Hydrocarbons; Aromatics; Zomangamanga; Chemicalbook Chemical Synthesis; Mafuta a haidrojeni; OrganicBuildingBlocks;Analytical standard products;Organic building blocks;Ophera tizirombo apakatikati;halogenated hydrocarbons;Organic chemical raw materials.

2,4-Dichlorotoluene ntchito ndi kaphatikizidwe njira
Mankhwala katundu: colorless ndi mandala madzi.
Gwiritsani ntchito:
1) Ntchito ngati intermediates mankhwala ophera tizilombo, utoto ndi mankhwala, ntchito kupanga 2,4-dichlorobenzaldehyde, mankhwala monga adipine, buprofen, etc.
2) 2,4-Dichlorotoluene ndi wapakatikati wa bactericides diniconazole ndi benzylchlorotriazole, ndipo Chemicalbook ndi zopangira zopangira 2,4-dichlorobenzaldehyde.
3) Organic zopangira zopangira, zomwe zimagwiritsidwa ntchito m'makampani opanga mankhwala popanga mankhwala oletsa malungo, Adepine, ndi kaphatikizidwe ka ventral acid. Amagwiritsidwa ntchito popanga mankhwala ophera tizilombo kuti apange 2,4-dichlorobenzyl chloride, 2,4-dichlorobenzoyl chloride, ndi 2,4-dichlorobenzoic acid.

Pali njira ziwiri zopangira njira zopangira.
1. Njira ya 1.2,4-dichlorrotoluene imagwiritsa ntchito 2,4-diaminotoluene monga zopangira, ndipo imapezeka mwa diazotization ndi chlorination. Ikani hydrochloric acid ndi madzi mumphika anachita, kutentha kwa 50 ℃, sungunulani 2,4-diaminotoluene pansi kusonkhezera, ndiye ikani hydrochloric acid ndi cuprous kolorayidi mu mphika, kuwonjezera 1% sodium nitrite njira wogawana mu Chemicalbook , Kutentha anakhalabe pa pafupifupi 60 ℃, kuyimirira kuti asanjike, m'munsi mwamafuta osakanizidwa amatsukidwa ndi madzi mpaka osalowerera ndale, alkali amawonjezeredwa ku alkali, kenako amatsukidwa ndi madzi kuti achotse alkaliyo, 2,4-dichloroluene wapakatikati amalekanitsidwa, chomaliza ndi steam distilled. . Njira ya 2.3-chloro-4-toluidine imapezeka ndi diazotization reaction ndi sodium nitrite, ndi Sandmeyer reaction ndi copper chloride.

2.Njira yopangira ndi njira zake zokonzekera ndi izi. Mu njira ya parachlorotoluene, p-chlorotoluene ndi chothandizira ZrCl4 zimayikidwa mu riyakitala, ndipo mpweya wa klorini umatulutsidwa kuti achite chlorination reaction. Kuchuluka kwa mpweya wa klorini kumayendetsedwa mpaka kumapeto kwa zomwe zimachitika ndipo zomwe zimayimitsidwa. Reactant yomwe idapezeka ili ndi 85.1% ya 2,4-dichloroluene. Ngati FeCl3 itagwiritsidwa ntchito ngati chothandizira kuchita chlorination reaction pa 10℃ 15 ℃ mpaka kachulukidwe wachibale wa yankho ndi 1.025, mankhwala ali 2,4-dichloroluene ndi 3,4-dichloroluene, ndi kuchuluka chiŵerengero cha awiriwo. zigawo ndi 100:30 . Mukamaliza kuthira chlorine, sambani ndi madzi kuti musalowerere m'mbali, ndipo pangani 10% NaOH solution pa 100～110℃ kuchotsa zonyansa zina. Kloridi yothandizidwayo imakonzedwanso ndikulekanitsidwa mu nsanja yowongolera bwino kwambiri (2,4-dichloro Toluene bp200°C, 3,4-dichloroluene bp207°C). Zokolola za 2,4-dichloroluene ndi 3,4-dichloroluene zinali 64.4% ndi 19.8%, motero. Njira ya Ortho-chlorotoluene o-chlorotoluene imagwiritsa ntchito sulfuryl chloride ngati chlorinating agent kuti achite chlorination reaction pa 142 ~ 196 ℃. Mankhwalawa ndi 2,4-dichloroluene ndi 2,3-dichloroluene, ndipo osakhudzidwa Mapangidwe a zopangira ndi 55%, 6%, ndi 39%, motero. Pambuyo pa distillation (2,4-dichloroluene bp 200 ° C, 2,3-dichloroluene bp 207-208 ° C, o-chlorotoluene bp 157-159 ° C), 2,4-dichloroluene inalekanitsidwa. Njira ya Ortho-nitrotoluene Ortho-nitrotoluene imathiridwa chlorine pamaso pa chothandizira cha FeCl3 pa 35～40℃. Pamene kachulukidwe wachibale wa reactant kufika 1.320 (15 ℃), sambani zinthu za ndale, ndi reactant lili 15% ya zopangira, 2-chloro-6-nitrotoluene 49%, 4-chloro-2-nitrotoluene 21% , ndi 15% polychloride, pambuyo pokonzanso ndi crystallization mankhwala, Chemicalbook ku 2-chloro-6-nitrotoluene Zokolola za 4-chloro-2-nitrotoluene ndi 4-chloro-2-nitrotoluene ndi 50% ndi 30% motsatira. 4-chloro-2-nitrotoluene imapezeka ndi hydrogenation kuchepetsa zochita ndi nthunzi distillation kupeza 4-chloro-2-amino. Toluene, diazotization ndi kuwonjezera CH2Cl2 kwa Sandmeyer reaction kuti mupeze 2,4-dichlorrotoluene. Njirayi imagwiritsidwa ntchito popanga 4-chloro-2-nitrotoluene yomwe imachokera ku 2-chloro-6-nitrotoluene (yomwe imagwiritsidwa ntchito ngati pakati pa herbicide quinclorac). 2,4-Diaminotoluene Njira 2,4-Diaminotoluene ikukumana ndi diazotization pamaso pa NaNO2 ndi hydrochloric acid, ndiyeno imapanga Sandmeyer reaction pamaso pa Cu2Cl2 kuti ipeze 2,4-dichloroluene. 3-Chloro-4-methylaniline njira 3-chloro-4-methylaniline ndi hydrochloric acid amawonjezedwa ku ketulo, yankho lamadzi la NaNO2 limawonjezedwa kutsika pa 3～5 ℃, ndipo kuwonjezera kumatsirizika mkati mwa 2 ~ 3h kwa diazotization Pambuyo pa anachita, ndi madzi diazotized anawonjezera dropwise kwa hydrochloric asidi njira munali Cu2Cl2 pa 2-5 ° C kuchita Sandmeyer anachita kupeza 2,4-dichloroluene. Mwa njira zomwe tazitchulazi, kloridi yopangidwa pogwiritsa ntchito p-chlorotoluene ndi o-chlorotoluene monga zopangira zili ndi zonyansa zambiri ndipo zimakhala ndi mfundo zowira zofanana. Ndikofunikira kugwiritsa ntchito nsanja zowongolera bwino kwambiri kuti mugawane kuti mupeze zoposa 98% za 2,4-dichlorrotoluene. Njira ziwirizi ndizovuta kugwiritsa ntchito, ndipo mtengo wogulitsira zida ndi wokwera. Njira ya 2,4-diaminotoluene si yoyenera kwa mafakitale, ndipo njira ya o-nitrotoluene ndi njira ya 3-chloro-4-methylaniline yokonzekera 2,4-dichloroluene ili ndi mfundo zofanana, ndipo zonsezi zimafuna diazotization ndi Sandmeyer Poyankha. , pali kuchepa kwa madzi ambiri otayira. Njira ya o-nitrotoluene imagwiritsidwa ntchito popanga 2-chloro-6-nitrotoluene, yomwe imachepetsedwanso kuti ipeze 2-chloro-6-aminotoluene, yomwe ndi yapakatikati yofunikira popanga mankhwala a herbicide quinclorac.