I-Cyclopentanone CAS 120-92-3

Umfanekiso obonisiweyo weCyclopentanone CAS 120-92-3

I-CAS:120-92-3

Ifomula yeMolekyuli:C5H8O

Ubunzima beemolekyuli:84.12

I-EINECS:204-435-9

Izithethantonye: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 umyalezo wakho

Iinkcukacha zeMveliso

Khuphela

Iithegi zeMveliso

Yintoni iCyclopentanone CAS 120-92-3?

I-Cyclopentanone ikwaziwa ngokuba yi-Adipic Ketono. Ulwelo olunamafutha olungenambala nolucacileyo. Inevumba elingaqhelekanga le-etheric, elifana ne-mint kancinci.

Inkcazo

Into yovavanyo	Amaxabiso asemgangathweni	Ixabiso elilinganisiweyo
Inkangeleko	Ulwelo olucacileyo olungenambala	Ulwelo olucacileyo olungenambala
I-Chroma	<10	<10
Umxholo	>99.5%	99.75%
Ubumuncu	<0.5%	0.11%
Ukufuma	<0.5%	0.28%
Okunye	<0.5%	0.25%

Isicelo

1. Ukusuka kwi-cyclopentanone kunye ne-n-valeraldehyde njengezinto eziluhlaza, i-amyl cyclopentanone yenziwa yi-aldol condensation kunye nokuphelelwa ngamanzi emzimbeni, kwaye emva koko kwenziwa i-hydrogenation ekhethiweyo ye-catalytic ukuvelisa i-amyl cyclopentanone. I-Amyl cyclopentanone inevumba elinamandla leentyatyambo neziqhamo kunye nencasa ye-jasmine, kwaye ingasetyenziswa kwifomyula yencasa yekhemikhali yemihla ngemihla, idosi inokuba ngaphantsi kwe-20%. I-IFRA ayinamiqathango.

2. I-Hexylcyclopentanone ilungiswa nge-n-hexylaldehyde kunye ne-cyclopentanone ngokufutha uze emva koko i-hydrogenation ekhethiweyo. I-Hexylcyclopentanone inevumba elinamandla le-jasmine kwaye ihamba nevumba leziqhamo, kwaye ingasetyenziswa kwiziqholo nakwezinye iifomyula zemihla ngemihla zekhemikhali ezinomlinganiselo ongaphakathi kwe-5%. I-IFRA ayinamiqathango.

3. I-1-pentene okanye i-1-heptene efunyenwe ngokuqhekeka kweparafini okanye ukuphelelwa ngamanzi kotywala okufana nayo njengezinto eziluhlaza, xa kukho i-di-tert-butyl peroxide njengesiqalo, i-free group addition reaction kunye ne-cyclopentanone ukuze yenze i-2-amyl cyclopentanone (okanye i-2-heptyl cyclopentanone), emva kokuba i-oxidation ibe yi-delta-decalactone (okanye i-delta-dodecalactone).

4. Indlela yokwenziwa kwe-cyclopentanone njengesixhobo sokuqala inexabiso elikhulu lemveliso kwimizi-mveliso. I-Cyclopentanone iqala ngokudityaniswa ne-n-valeraldehyde, kwaye iChemicalbook ephumayo iyasuswa emanzini kwaye ikhethwe ngokukhetha i-hydrogenated ukuze yenze i-2-amylcyclopentanone, kwaye ekugqibeleni yenze i-delta-decalactone ngokukhulisa i-oxidative ring.

I-5.delta-decanolactone isetyenziswa kakhulu kwiifomyula zencasa yokutya, apho kukholelwa ukuba inencasa ephawulekayo yekhrimu yendalo. Ngaphambi koku, ixesha elide, abenzi beziqholo babenqunyelwe ekusebenziseni iziqholo ze-monomer ezifana ne-butanedione kunye ne-vanillin njengezinto eziphambili zokulungiselela incasa yekhrimu. Nangona kunjalo, abantu ngokubanzi bavakalelwa kukuba incasa yekhrimu exutyiweyo incinci kakhulu kunemveliso yendalo ngokwencasa okanye incasa. Kuphela emva kokusetyenziswa kwe-delta-decalactone, apho kukho incasa yokwenyani yekhrimu, ngakumbi indibaniselwano ye-delta-decalactone kunye ne-delta-dodecalactone njengezinto eziphambili zevumba, incasa kunye nefuthe lencasa yekhrimu elungisiweyo lingcono.

6. Ukusebenzisa i-cyclopentanone kunye ne-valeraldehyde njengezinto eziluhlaza, ukufuma ukuze kwenziwe i-2-(1-hydroxyl) amyl cyclopentanone, i-reaction ne-dimethyl malonate, uze emva koko i-hydrolysis ibe yi-160 ~ 180℃, i-decarboxylated, i-esterification, i-dihydrojasmonate methyl ester ingalungiswa. I-Methyl jasmonate dihydrojasmonate yincasa yexeshana etyiwayo evunyelwe yi-GB2760-1996 kwilizwe lethu. Ivumba layo lingcono kune-methyl jasmonate yendalo, kwaye iimpawu zayo zizinzile.