I-3-chloropropyne engenambala uketshezi oluvutha kalula olungenambala oluvuthayo Isithombe Esifakiwe

3-chloropropyne uketshezi oluvuthayo olungenambala olunobuthi obuphezulu

Incazelo emfushane:

I-3-chloropropyne iyinhlanganisela yemvelo enefomula yesakhiwo ch ≡ cch2cl.Ukubonakala kuwuketshezi oluvuthayo olungenambala.Iphoyinti lokuncibilika -78 ℃, iphoyinti elibilayo 57 ℃ (65 ℃), ukuminyana kwesihlobo 1.0297, inkomba ye-refractive 1.4320.Iphoyinti elikhanyayo elingu-32.2-35 ℃, elicishe lingancibiliki emanzini ne-glycerol, lihlangana ne-benzene, i-carbon tetrachloride, i-ethanol, i-ethylene glycol, i-ether ne-ethyl acetate.Itholakala ngokuphendula utshwala be-propargyl nge-phosphorus trichloride.Isetshenziswa njengendawo emaphakathi ku-organic synthesis.

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Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Incazelo Yomkhiqizo

Indlela yokulungiselela: Itholakala ngokusabela utshwala be-propargyl nge-phosphorus trichloride.Okokuqala, amafutha omlilo kanye ne-phosphorus trichloride yengezwa ethangini elomile lokusabela, futhi ingxube ye-propargyl alcohol ne-pyridine yengezwa ngokudonsa ngaphansi kuka-20 ℃.Ngemuva kokungeza, iyashiswa ukuze i-reflux.Ngemva kokusabela amahora angu-4, yengezwa emanzini e-ice ukuhlukanisa ungqimba lwamanzi.Isendlalelo samafutha sengezwa ngefasitela lamanzi le-sodium carbonate ku-ph = 5-6 ukuhlukanisa ungqimba lwamanzi, bese ligeza, lomiswa futhi lifakwe ngaphansi kwengcindezi evamile ukuqoqa ama-fractions angu-52-60 ℃ ukuze uthole umkhiqizo ophelile.

Isitoreji:gcina endaweni epholile nengena umoya.Gcina kude nomlilo nomthombo wokushisa.Vikela elangeni eliqondile futhi ugcine iziqukathi zivaliwe.Kuzokwamukelwa izibani ezivikela ukuqhuma kanye nezindawo zokungenisa umoya.Akuvunyelwe ukusebenzisa imishini namathuluzi alula ukukhiqiza izinhlansi.Indawo yokugcina izofakelwe okokusebenza okuphuthumayo okuvuzayo kanye nezinto zokwamukela ezifanele.

Inhloso:Isetshenziswa ekwenzeni umuthi i-youjiangning, i-fumigant yenhlabathi, njll. Ibuye ibe isiguquli samapulasitiki obunjiniyela.Usawoti wayo we-trisodium uyisinzisi sokushisa esihle kakhulu se-PVC, futhi ama-ester awo nawo ayizithasiselo ezibalulekile zama-polymer.

Inqubo yokukhiqiza i-chlorpropargyne eyamukelwa inkampani yethu ukukhiqizwa kwe-chlorpropargyne nge-propargyl alcohol ne-thionyl chloride ngaphansi kwesenzo se-DMF.Le ndlela inezinyathelo ezilula, izinga lokuguqulwa kwendlela eyodwa yotshwala be-propargyl ngu-100%, futhi i-DMF igcina ukusakazwa ngaphandle kokulahlekelwa, ngaphandle kokwengeza kwangaphandle, ngenqubo emfushane kanye nemishini encane.Ngesikhathi esifanayo, ibona ukukhiqizwa okuqhubekayo.Kuyinqubo yokuqala yamakhemikhali yokukhiqizwa okuqhubekayo kwe-chlorpropargyne eChina

Okwedlule: Uketshezi oluphuzi oluphaphathekile olunobuthi obuphezulu 1,4-butynediol

Olandelayo: Uketshezi olunobuthi obuphezulu bomkhiqizo we-propargyl alcoho

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