I-Cyclopentanone CAS 120-92-3

I-CAS:120-92-3

I-Molecular Formula:C5H8O

Isisindo se-Molecular:84.12

I-EINECS:204-435-9

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

Shiya Umlayezo Wakho

Imininingwane Yomkhiqizo

Landa

Omaka bomkhiqizo

Iyini i-Cyclopentaone CAS 120-92-3?

I-Cyclopentanone yaziwa nangokuthi i-Adipic Ketono. Uketshezi olunamafutha asobala olungenambala. Ukuba ne-etheric ehlukile, iphunga elincane elincane.

Ukucaciswa

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

Isicelo

I-1.Kusuka ku-cyclopentanone ne-n-valeraldehyde njengezinto zokusetshenziswa, i-amyl cyclopentanone yenziwa yi-aldol condensation kanye nokuphelelwa amandla kwamanzi, bese i-catalytic hydrogenation ekhethiwe yenziwa ukukhiqiza i-amyl cyclopentanone. I-Amyl cyclopentanone inephunga eliqinile lezimbali nezithelo nephunga le-jasmine, futhi ingasetshenziswa kufomula yokunambitheka kwamakhemikhali yansuku zonke, umthamo ungaba ngaphansi kuka-20%. I-IFRA ayinayo imikhawulo.

2. I-Hexylcyclopentanone ilungiswa kusuka ku-n-hexylaldehyde ne-cyclopentanone nge-condensation bese i-hydrogenation ekhethiwe. I-Hexylcyclopentanone inephunga eliqinile le-jasmine futhi ihambisana nephunga lezithelo, futhi ingasetshenziswa kumakha nokunye ukwakheka kwamakhemikhali kwansuku zonke okunambitheka ngomthamo ngaphakathi kuka-5%. I-IFRA ayinayo imikhawulo.

3. I-1-pentene noma i-1-heptene etholwe ngokuqhekeka kukapharafini noma ukuphelelwa amanzi otshwaleni okuhambisanayo njengezinto zokusetshenziswa, phambi kwe-di-tert-butyl peroxide njengesiqalisi, ukusabela kweqembu lamahhala nge-cyclopentanone ukwenza i-2-amyl cyclopentanone (noma 2-heptyl cyclopentanone), ngemva kwe-oxidation ukuze ibe i-delta-decalactone (noma i-delta-dodecalactone).

4. Umzila wokuhlanganisa one-cyclopentanone njengento yokuqala inevelu yokukhiqiza yezimboni kakhulu. I-Cyclopentanone iqala ukujiya nge-n-valeraldehyde, futhi i-Chemicalbook ewumphumela iphelelwa amanzi futhi ikhethwa i-hydrogenated ukuze yakhe i-2-amylcyclopentanone, futhi ekugcineni yakhe i-delta-decalactone ngokukhulisa indandatho ye-oxidative.

I-5.delta-decanolactone isetshenziswa kakhulu ekwenzeni ukunambitheka kokudla, lapho kukholakala ukuthi inokunambitheka kwesici kokhilimu wemvelo. Ngaphambi kwalokhu, isikhathi eside, abenzi bamakha babekhawulelwe kuphela ekusetshenzisweni kwezinongo ze-monomer ezifana ne-butanedione ne-vanillin njengezinto eziyinhloko zokulungiselela ukunambitheka kwekhilimu. Kodwa-ke, abantu ngokuvamile banomuzwa wokuthi ukunambitheka kakhilimu ohlanganisiwe kuncane kakhulu kunomkhiqizo wemvelo ngokokunambitheka noma ukunambitheka. Kuphela ngemva kokusetshenziswa kwe-delta-decalactone, lapho kungaba khona ukunambitheka kweqiniso kokhilimu, ikakhulukazi inhlanganisela ye-delta-decalactone kanye ne-delta-dodecalactone njengezinto zokusetshenziswa kwephunga eliyinhloko, ukunambitheka kanye nomphumela we-flavour kakhilimu olungiselelwe kungcono.

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