piav qhia txog khoom

Lub npe khoom: Benzyl chloride

Lub npe lus Askiv: Benzyl chloride

CAS No.100-44-7

Benzyl chloride, tseem hu ua benzyl chloride thiab toluene chloride, yog cov kua tsis muaj xim nrog lub ntxhiab tsw qab heev. Nws sib xyaw nrog cov organic solvents xws li chloroform, ethanol, thiab ether. Nws tsis yaj hauv dej tab sis tuaj yeem ua pa nrog cov dej pa. Nws cov pa ua rau khaus rau cov mucous membranes ntawm lub qhov muag thiab yog tus neeg sawv cev muaj zog ua rau kua muag. Tib lub sijhawm, benzyl chloride kuj yog ib qho nruab nrab hauv kev tsim cov organic thiab siv dav hauv kev tsim cov xim, tshuaj tua kab, tshuaj tsw qab, tshuaj ntxuav tes, cov yas, thiab tshuaj.

Muaj ntau txoj kev tsim cov benzyl chloride, feem ntau suav nrog txoj kev benzyl cawv chlorination, txoj kev chloromethyl, txoj kev catalytic chlorination toluene, thiab lwm yam. Ntawm lawv, txoj kev benzyl cawv chlorination yog tau los ntawm cov tshuaj tiv thaiv ntawm benzyl cawv thiab hydrochloric acid. Nws yog txoj kev tsim cov benzyl chloride thaum ntxov tshaj plaws. Txoj kev chloromethyl kuj yog ib txoj kev lag luam thaum ntxov. Nws cov khoom siv raw yog benzene thiab benzaldehyde (lossis trimerformaldehyde). Anhydrous zinc chloride yog siv ua catalyst. Catalytic chlorination ntawm toluene tam sim no yog txoj kev tsim khoom lag luam feem ntau ntawm benzyl chloride, thiab catalytic chlorination ntawm toluene tuaj yeem faib ua photocatalytic chlorination thiab low-temperature catalytic chlorination. Txawm li cas los xij, txoj kev photocatalytic chlorination xav tau kev teeb tsa lub teeb hauv cov khoom siv, uas muaj cov yam ntxwv ntawm kev nyuaj los tswj cov tshuaj tiv thaiv, ntau yam tshuaj tiv thaiv sab, thiab tus nqi siab. Txoj kev siv tshuaj chlorine catalytic uas siv qhov kub tsawg siv ib lossis ntau yam ntawm dibenzoyl peroxide, azobisisobutyronitrile, thiab acetamide ua tus catalyst los teb cov toluene thiab chlorine ntawm qhov kub tsawg, siv qhov kub tsawg thiab chlorine Tswj tus nqi tshuaj kom txhim kho tus nqi hloov pauv thiab kev xaiv, tab sis tseem yuav tsum tau tshawb nrhiav cov xwm txheej tshwj xeeb.

Qhov kub ntawm benzyl chloride feem ntau yog ua tiav ntawm 100 ° C thiab feem ntau yuav tsum tsis pub tshaj 170 ° C. Qhov no yog vim benzyl chloride yog cov khoom siv kub-rhiab. Yog tias qhov kub siab dhau, qhov kev ua haujlwm ntawm tus kheej-polymerization yuav tshwm sim. Yog tias qhov kev ua haujlwm hnyav dhau, yuav muaj kev phom sij tawg. Yog li ntawd, kev ua haujlwm ntawm cov benzyl chloride nyoos yuav tsum tau ua tiav hauv qab qhov siab tsis zoo. Tib lub sijhawm, nws yog qhov tsim nyog los tswj cov ntsiab lus hlau ion hauv cov tshuaj chlorination, vim tias benzyl chloride yuav dhau los ntawm Krafts-Kreider tshuaj tiv thaiv nyob rau hauv qhov muaj cov hlau ions thiab kub siab, thiab cov khoom resinous yuav tsim, uas yuav ua rau cov kua xim tsaus dua thiab ntau cov roj hydrogen chloride raug tso tawm.

Cov ntawv thov

Benzyl chloride yog ib qho tseem ceeb ntawm cov organic intermediate. Cov khoom lag luam yog cov kua tsis muaj xim lossis daj daj uas muaj ntxhiab tsw qab thiab muaj zog corrosiveness. Nws tuaj yeem yaj rau hauv cov organic solvents xws li ether, chloroform, thiab chlorobenzene. Benzyl chloride siv dav hauv kev lag luam. Nws feem ntau yog siv rau hauv cov teb ntawm cov tshuaj tua kab, tshuaj, txuj lom, cov khoom siv zas xim, thiab cov khoom siv hluavtaws. Nws yog siv los tsim thiab tsim benzaldehyde, butyl benzyl phthalate, aniline, phoxim, thiab benzyl chloride. Penicillin, benzyl cawv, phenylacetonitrile, phenylacetic acid thiab lwm yam khoom.

Benzyl chloride yog ib hom tshuaj uas ua rau khaus. Yog hais txog cov tshuaj tua kab, nws tsis yog tsuas yog siv tau ncaj qha los ua cov organophosphorus fungicides xws li rice blast net thiab iso rice blast net xwb, tab sis kuj siv tau ua cov khoom siv tseem ceeb rau ntau lwm yam intermediates, xws li kev ua phenylacetonitrile thiab benzene. Formyl chloride, m-phenoxybenzaldehyde, thiab lwm yam. Tsis tas li ntawd, benzyl chloride siv dav hauv tshuaj, txuj lom, cov tshuaj zas xim, cov tshuaj ua los ntawm cov khoom siv hluavtaws, thiab lwm yam. Nws yog ib qho tshuaj lom neeg tseem ceeb thiab tshuaj tsim tshuaj. Tom qab ntawd cov kua pov tseg lossis cov khib nyiab uas cov tuam txhab tsim tawm thaum lub sijhawm tsim khoom yuav muaj ntau cov benzyl chloride intermediates.

Benzyl chloride nws tus kheej ua rau kua muag, muaj tshuaj lom heev, ua rau mob qog noj ntshav, thiab ua rau ib puag ncig tsis puas. Vim tias benzyl chloride nws tus kheej siv dav thiab siv ntau heev, benzyl chloride xau thaum thauj mus los lossis tsim los ntawm ntau lub tuam txhab tsim khoom. Cov kua pov tseg uas muaj benzyl chloride coj los ntawm lub tuam txhab thaum lub sijhawm tsim khoom lossis cov khib nyiab raug pov tseg ncaj qha, lossis xau tshwm sim thaum lub sijhawm tsim khoom, uas yuav ua rau benzyl chloride nkag mus rau hauv av thiab thaum kawg ua rau av qias neeg.

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