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1,4 butynediol umkhiqizo oqinile ophakeme
CAS:110-65-6
Izakhiwo zamakhemikhali ze-butynediol: ikristalu emhlophe ye-orthorhombic.Iphoyinti elincibilikayo 58 ℃, iphoyinti elibilayo 238 ℃, 145 ℃ (2KPa), iphoyinti elikhanyayo 152 ℃, inkomba ye-refractive 1.450.Incibilika emanzini, isixazululo se-asidi, i-ethanol ne-acetone, inyibilika kancane ku-chloroform, ayincibiliki ku-benzene ne-ether.
Ukusetshenziswa: i-butynediol ingasetshenziselwa ukukhiqiza i-butene glycol, i-butynediol, i-n-butanol, i-dihydrofuran, i-tetrahydrofuran γ- Uchungechunge lwemikhiqizo ebalulekile ye-organic efana ne-butyrolactone ne-pyrrolidone ingasetshenziswa futhi ukwenza amapulasitiki okwenziwa, imicu yokwenziwa (inayiloni-4), isikhumba sokwenziwa, imithi, izibulala-zinambuzane, izinyibilikisi (N-methyl pyrrolidone) kanye nezivimbelakuvunda.I-Butynediol ngokwayo iyi-solvent enhle futhi isetshenziswa njengento ekhanyayo embonini ye-electroplating.
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Uketshezi oluphuzi oluphaphathekile olunobuthi obuphezulu 1,4-butynediol
I-1,4-butynediol eqinile, ifomula yamakhemikhali engu-C4H6O2, ikristalu emhlophe ye-orthorhombic.Incibilika emanzini, i-asidi, i-ethanol ne-acetone, ayincibiliki ku-benzene ne-ether.Ingacasula ulwelwesi lwamafinyila, isikhumba kanye nomgudu wokuphefumula ongaphezulu wamehlo.Embonini, okuqinile kwe-1,4-butynediol kulungiselelwe ngokuyinhloko indlela ye-Reppe, eyenziwe nge-butynediol yethusi noma i-copper bismuth catalyst, futhi ilungiswa ngokusabela kwe-acetylene ne-formaldehyde ngaphansi kwengcindezi (1 ~ 20 bar) kanye nokufudumeza (110 ~ 112 ° C) .I-butynediol engahluziwe itholakala ngokusabela, futhi umkhiqizo oqediwe utholakala ngokugxila nokucwengisiswa.
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3-chloropropyne uketshezi oluvuthayo olungenambala olunobuthi obuphezulu
I-3-chloropropyne iyinhlanganisela yemvelo enefomula yesakhiwo ch ≡ cch2cl.Ukubonakala kuwuketshezi oluvuthayo olungenambala.Iphuzu elincibilikayo -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 ngokusabela utshwala be-propargyl nge-phosphorus trichloride.Isetshenziswa njengendawo emaphakathi ku-organic synthesis.
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Uketshezi olunobuthi obuphezulu bomkhiqizo we-propargyl alcoho
Uketshezi olungenambala, oluguquguqukayo olunephunga elimnandi.Kulula ukuphenduka kube phuzi uma ibekwe isikhathi eside, ikakhulukazi uma kuvezwe ekukhanyeni.Ixubene namanzi, i-benzene, i-chloroform, i-1,2-dichloroethane, i-ether, i-ethanol, i-acetone, i-dioxane, i-tetrahydrofuran ne-pyridine, inyibilika kancane ku-carbon tetrachloride, kodwa ayincibiliki kuma-aliphatic hydrocarbon.
Yonke Imikhiqizo
Isebenza ngokukhethekile ekukhiqizeni utshwala be-propargyl, i-1,4 butynediol kanye ne-3-chloropropyne
