I-Cyclopentanone CAS 120-92-3

Isithombe Esifakiwe se-Cyclopentanone CAS 120-92-3

I-CAS:120-92-3

Ifomula Yamamolekyuli:C5H8O

Isisindo sama-molecule:84.12

I-EINECS:204-435-9

Amagama afanayo:I-Adipinketon; Dumasin; I-Pyran-2,4 (3H) -dione, i-3-acetyl-6-methyl-; I-ADIPIC KETONE; I-AKOS BBS-00004293; KETOCYCLOPENTANE; KETOPENTAMETHYLENE; I-CYCLOPENTANONE

Shiya Umlayezo Wakho

Imininingwane Yomkhiqizo

Landa

Amathegi Omkhiqizo

Iyini i-Cyclopentanone CAS 120-92-3?

I-Cyclopentanone yaziwa nangokuthi i-Adipic Ketono. Uketshezi olunamafutha olungabonakali nolungenambala. Lunephunga elihlukile le-etheric, elifana ne-mint kancane.

Imininingwane

Into yokuhlola	Amanani ajwayelekile	Inani elilinganisiwe
Ukubukeka	uketshezi olucacile olungenambala	uketshezi olucacile olungenambala
I-Chroma	<10	<10
Okuqukethwe	>99.5%	99.75%
Ubumuncu	<0.5%	0.11%
Umswakama	<0.5%	0.28%
Okunye	<0.5%	0.25%

Isicelo

1. Kusukela ku-cyclopentanone kanye ne-n-valeraldehyde njengezinto zokusetshenziswa, i-amyl cyclopentanone yakhiwa yi-aldol condensation kanye nokuphelelwa amanzi emzimbeni, bese kwenziwa i-hydrogenation ekhethiwe yokukhiqiza i-amyl cyclopentanone. I-Amyl cyclopentanone inephunga elinamandla lezimbali nezithelo kanye nokunambitheka kwe-jasmine, futhi ingasetshenziswa kufomula yokunambitheka kwamakhemikhali yansuku zonke, umthamo ungaba ngaphansi kuka-20%. I-IFRA ayinayo imingcele.

2. I-Hexylcyclopentanone ilungiswa nge-n-hexylaldehyde kanye ne-cyclopentanone ngokujiya bese kuba yi-hydrogenation ekhethiwe. I-Hexylcyclopentanone inephunga elinamandla le-jasmine futhi ihambisana nephunga lezithelo, futhi ingasetshenziswa kumakhavu kanye nezinye izinhlobo zamakhemikhali zansuku zonke ezinomthamo ongaphakathi kuka-5%. I-IFRA ayinayo imingcele.

3. I-1-pentene noma i-1-heptene etholwe ngokuqhekeka kwe-paraffin noma ukuphelelwa amanzi emzimbeni okuhambisanayo kotshwala njengezinto zokusetshenziswa, lapho kukhona i-di-tert-butyl peroxide njengesiqalisi, ukusabela kweqembu okukhululekile ne-cyclopentanone ukwakha i-2-amyl cyclopentanone (noma i-2-heptyl cyclopentanone), ngemva kokushiswa kwe-oxidation ibe yi-delta-decalactone (noma i-delta-dodecalactone).

4. Indlela yokwenziwa kwe-cyclopentanone njengento yokuqala inenani elikhulu lokukhiqiza ezimbonini. I-Cyclopentanone iqala ngokufinyezwa nge-n-valeraldehyde, bese i-Chemicalbook ephumayo ikhishwa amanzi bese ifakwa i-hydrogenated ngokukhetha ukuze kwakhiwe i-2-amylcyclopentanone, bese ekugcineni kwakhiwe i-delta-decalactone ngokukhulisa indandatho ye-oxidative.

I-5.delta-decanolactone isetshenziswa kakhulu ekwakhiweni kokunambitheka kokudla, lapho kukholakala ukuthi inokunambitheka okuhlukile kokhilimu wemvelo. Ngaphambi kwalokhu, isikhathi eside, abenzi bamakha babekhawulelwe kuphela ekusebenziseni izinongo ze-monomer njenge-butanedione ne-vanillin njengezinto eziyinhloko zokusetshenziswa zokulungiselela ukunambitheka kokhilimu. Kodwa-ke, abantu ngokuvamile banomuzwa wokuthi ukunambitheka kokhilimu okuhlanganisiwe kuncane kakhulu kunomkhiqizo wemvelo ngokwendlela yokunambitheka noma ukunambitheka. Kuphela ngemva kokusebenzisa i-delta-decalactone, lapho kungaba khona ukunambitheka kwangempela kokhilimu, ikakhulukazi inhlanganisela ye-delta-decalactone ne-delta-dodecalactone njengezinto eziyinhloko zokusetshenziswa, ukunambitheka kanye nomphumela wokunambitheka kokhilimu okulungiselelwe kungcono.

6. Ukusebenzisa i-cyclopentanone kanye ne-valeraldehyde njengezinto zokusetshenziswa, ukujiya kwakha i-2-(1-hydroxyl) amyl cyclopentanone, ukusabela nge-dimethyl malonate, bese kuba yi-hydrolysis ku-160 ~ 180℃, i-decarboxylated, i-esterification, i-dihydrojasmonate methyl ester ingalungiswa. I-Methyl jasmonate i-dihydrojasmonate iyinambitheka yesikhashana edliwayo evunyelwe yi-GB2760-1996 ezweni lethu. Iphunga layo lingcono kune-methyl jasmonate yemvelo, futhi izakhiwo zayo zizinzile.