Kakaretso: acetone e kentse chloride ka har'a acetone 'me e hlahisoa ke crystallization ea solvent ho 1,1,3-trichloroacetone ka bohloeki bo phahameng ba bonyane 99.0%, ka tlhahiso ea 45%o Mantsoe a bohlokoa: 1,1,3-trichloroacetone; synthesis; bohloeki bo phahameng

———-. Selelekela

1,1,3■trichloroacetone ke karolo ea bohlokoa tlhahisong ea folic acid. Hona joale, 1,1,3.acetone trichloropacetone, potoloho e telele ea tlhahiso (lihora tse 48), khetho e mpe, chai e tlase, 1,1,3-trichloropacetone ke hoo e ka bang 17% feela, kamora ho ntšoa ha metsi, litaba tsa eona ke 51.9 feela. Mme litšenyehelo tsa tlhahiso li holimo, tokiso ea sehlahisoa e tlase. Tsena kaofela li lebisa litšenyehelong tse phahameng tsa tlhahiso ea folic acid ea lapeng, ho thata ho ntlafatsa litaba le mathata a mang. Mongoli o balile litokomane tse ngata tsa lehae le tsa kantle ho naha. Kamora liteko le lithuto tse ngata, re ekelitse catalyst le lebelo le laoloang la fou chlorine, ra fokotsa nako ea karabelo ho 1,1,3-3 trichloropacetone ka lihora tse 24, le kristale ea 1,1,3-3 trichloropacetone ka bohloeki bo fetang 99% le chai e fetang 45%.

II. Karolo ea liteko

1. karabelo

0 0 0 0

1. II.

　　CHACCHa+Cl:—ClCH.₂CCH.₃+Cl.₂CHCCH.₃+C1CH.₂CCH.₂C1+

1. Mehato ea liteko

Ka har'a botlolo ea melala e mene e nang le condenser e chitja ea 500ml, tekanyo e itseng ea acetone le catalyst li ile tsa hlohlelletsoa 'me tsa fepuoa ho chlorine mochesong oa karabelo oa 10 ~ 30 W. Qala nako, emisa ho feta ka chlorine lihora tse 'maloa kamora karabelo,' me u tsoele pele ho hlohlelletsa hora e le 'ngoe. Ho ile ha eketsoa motsoako o khethehileng o kang solvent, oa hlohlelletsoa hora e le 'ngoe ha o ntse o pholisitsoe ho fihlela ho 10°C crystallization, oa ntša 1,1,3-trichloroacetone.

1. 1,1,3. Khetho e ikhethileng ea bohloeki ba trichloroacetone

Kromatograph ea khase ea Varin 3700, kholomo ea ho tlatsa ea QF・1 le detector ea FID li sebelisitsoe ho khetholla ka mokhoa o ikhethileng phaello ea bohloeki ba sehlahisoa le tharollo ea chloride.

1. Liphetho tsa puisano
2. Tšusumetso ea catalyst ho khetho ea chloride e bontšitse khetho ea chlorination ea acetone

Tšusumetso e kholo, Tafole ea 1 e thathamisa sete ea liphetho tsa liteko. Ho tsoa Tafoleng ea 1, khetho e fokolang ea 1,1,3-trichloroacetone e eketsehile haholo (hoo e ka bang 19.1%) ntle le catalyst, 'me

　　Sesebediswa sa amine se kopaneng ke sona se molemo ka ho fetisisa, ho fihlela ho 57.5%o. Maemo a teko: Innl acetone, 3nr) l chlorine, sesebediswa sa catalyst 0.6g, mocheso 1030°C,

nako dihora tse 18. Ka hare ho dihora tse 12 va:3.9 Cao h;2

〜Lihora tse 7, vq:27 Cao h;7〜Lihora tse 18, VQ:3.9 ho isa ho h.Tafole ea 1. Litlamorao tsa catalyst khethong ea sehlahisoa

1. Tšusumetso ea lebelo la through-chlorine karabelong

Teko e fumane hore chlorine e tšoanang e na le khetho e mpe ea sehlahisoa, e leng se ntlafatsang khetho le chai ea sehlahisoa haholo.

Tafole ea 2 e thathamisa sete ea lintlha tsa liteko.

Tafole ea 2 Litlamorao tsa lebelo la pass-chlorine khethong ea sehlahisoa

Teko^boemo:]Sejana sa Petri 1 acetone,catalyst: sehlopha sa metsoako 0.6go

Teko e fumane hore fluchlorine e bile hoseng (lihora tse 12) le hamorao (lihora tse 8 ho isa ho tse 24), boholo ba chlorine e baleha hore karabelo e ne e lieha 'me bohareng (lihora tse 28) bo ne bo potlakile. Ha khase ea chlorine e emisoa, khetho ea sehlahisoa le chai li fokotseha haholo. Liphetho li bontšitse hore 1, 1, 3 e hlahisitse butle haholo ho feta

1,1-dichloroacetone. Nakong ea karabelo le

chloride, chloride, asetone, 1,1,4003000,

CICH2CCH3

o.

ke hore_II.chlorination sehlopheng sa submethyl e ne e le ngata haholo.

ka potlako ho feta sehlopheng sa methyl. Ka hona,

Mongoli o lumela hore ts'ebetso ea karabelo ea ts'ebetso ea tlhahiso ea acetone chloride ke:

Karabelo e etsoa ka V1 1 2-5 e le ts'ebetso ea mantlha.

Ho ya ka data ya Tafole ya 2, tatellano ya lebelo la karabelo ya mohato ka mong ke

　　V2^”3^1 2 5>V4

Ho latela lebelo la karabelo la mohato ka mong,

Ho ka bonoa ho tsoa ho data ea Tafole ea 3 hore, ka lebaka la phapang e nyane ea ntlha ea ho belisa pakeng tsa 1, 1, 3. trichloroacetone le lihlahisoa tse ling, hangata ho thata ho arola ho ntšoa ha metsi 'me karohano ke mokhoa o bonolo. Le hoja boholo ba lihlahisoa tsa I li ka tlosoa, bohloeki bo thata.

re laola lebelo la chlorine mohatong o mong le o mong,

ho fihlella sepheo sa ho fokotsa nako ea chlorine e fetang le ho thibela khetho ea ho eketsa lebelo la karabelo ea bobeli ka 1,1,3 trichloroacetone.

1. Ho ya ka dingolwa, hangata ho hlwekiswa ha kristale e nang le metsi.

Mokelikeli oa acetone chloride o ntšoa kapa o hloekisoa ke metsi ho eketsa litaba tsa 1,1,3-trichloroacetone, 'me mongoli o sebelisitse 1,1,3-trichloroacetone ho etsa kristale ho tsoa lihlahisoa tse ling tse setseng.

Tafole ea 3 e thathamisa bohloeki ba sehlahisoa bo fumanoeng ka mekhoa e fapaneng ea karohano.

Tafole ea 3. Bohloeki ba sehlahisoa bo fumanoeng mekhoeng e fapaneng ea karohano

ho ntlafatsa haholoanyane. Bohloeki ba sehlahisoa bo fihla ho feta 99%, 'me chai le eona e phahame ka ho fetisisa mekhoeng e mengata, ho fihlela ho 45%o.1 Mokhoa ona o hloka 1,1,3-trichloroacetone ea K e fetang 50% tharollong ea chlorideo.

Kgetha motsoako o loketseng wa amine catalyst, laola ho thibela ha chlorine butle qalong le morao ho 10~30°C, e ka etsa 1,1,3-trichloroacetone chloride, e hlwekisitsweng ka crystallization e ikgethang ya solvent, e fumane sehlahiswa sa kristale se nang le bonyane 99.0%, ka tlhahiso ya 45%, empa 1,1,3-trichloroacetone ka hara tharollo ya chloride e lokela ho ba ho feta 50%o.CEO oa Athena

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