Cyclopentanone CAS 120-92-3

CAS:120-92-3

Fomura reMamorekuru:C5H8O

Kurema kweMorekuru:84.12

EINECS:204-435-9

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

Siya Mharidzo Yako

Ruzivo rweChigadzirwa

Dhawunirodha

Matagi eChigadzirwa

Chii chinonzi Cyclopentanone CAS 120-92-3?

Cyclopentanone inozivikanwawo seAdipic Ketono. Mvura ine mafuta isingaonekwe isina ruvara. Ine hwema hwakasiyana hwe etheric, hune minti shoma.

Tsanangudzo

Chinhu chekuyedza	Hunhu hwakajairika	Kukosha kwakayerwa
Chitarisiko	Mvura yakachena isina ruvara	Mvura yakachena isina ruvara
Chroma	<10	<10
Zviri Mukati	>99.5%	99.75%
Acidity	<0.5%	0.11%
Hunyoro	<0.5%	0.28%
Zvimwe	<0.5%	0.25%

Kushandiswa

1. Kubva ku cyclopentanone ne n-valeraldehyde sezvinhu zvakabikwa, amyl cyclopentanone inoumbwa ne aldol condensation uye dehydration, uye ipapo selective catalytic hydrogenation inoitwa kuti ibudise amyl cyclopentanone. Amyl cyclopentanone ine kunhuhwirira kwakasimba kwemaruva nemuchero uye kunaka kwejasmine, uye inogona kushandiswa mufomura yekuravira kwemakemikari ezuva nezuva, chiyero chinogona kunge chiri pasi pe20%. IFRA haina zvirambidzo.

2. Hexylcyclopentanone inogadzirwa kubva ku n-hexylaldehyde ne cyclopentanone kuburikidza nekunyungudika uye wozosarudza hydrogenation. Hexylcyclopentanone ine hwema hwakasimba hwejasmine uye inoperekedzwa nekunhuhwirira kwemichero, uye inogona kushandiswa mumafuta anonhuhwirira uye mamwe makemikari anonaka zuva nezuva ane chiyero chiri mukati me5%. IFRA haina zvirambidzo.

3. 1-pentene kana 1-heptene inowanikwa nekuparara kweparafini kana kushaya mvura yakakwana kubva mudoro sezvinhu zvakagadziriswa, kana paine di-tert-butyl peroxide semutangisi, mhinduro yekuwedzera boka yakasununguka necyclopentanone kuti igadzire 2-amyl cyclopentanone (kana 2-heptyl cyclopentanone), mushure mekuoxidation ichizova delta-decalactone (kana delta-dodecalactone).

4. Nzira yekugadzira cyclopentanone sechinhu chekutanga ndiyo inonyanya kukosha mukugadzirwa kwemaindasitiri. Cyclopentanone inotanga yabatanidzwa ne n-valeraldehyde, uye Chemicalbook inobuda inobviswa mvura uye inosarudzwa kuita 2-amylcyclopentanone, uye pakupedzisira kugadzira delta-decalactone nekuwedzera kwe oxidative ring.

5.delta-decanolactone inonyanya kushandiswa mukugadzira manakiro echikafu, uko kunofungidzirwa kuti ine manakiro chaiwo ekirimu yechisikigo. Izvi zvisati zvaitika, kwenguva yakareba, vagadziri vezvinonhuhwirira vaingoshandisa zvinonhuwira zvemonomer zvakaita sebutanedione nevanillin sezvinhu zvikuru zvekugadzira kunakirwa kwekirimu. Zvisinei, vanhu vanowanzo funga kuti kunakirwa kwekirimu kwakasanganiswa kwakaderera pane kunakirwa kwechisikigo kana tichitarisa kuravira kana kunaka. Mushure mekushandisa delta-decalactone chete, ndipo panogona kuva nekuravira kwekirimu chaiko, kunyanya musanganiswa wedelta-decalactone nedelta-dodecalactone sekunhuhwirira kukuru kwezvinhu zvakagadzirwa, kuravira uye mhedzisiro yekunaka kwekirimu yakagadzirwa zviri nani.

6. Kushandisa cyclopentanone ne valeraldehyde sezvinhu zvakabikwa, kuumbwa kwemvura inodziya (condensation) kuti iite 2-(1-hydroxyl) amyl cyclopentanone, reaction ne dimethyl malonate, uye hydrolysis pa 160 ~ 180℃, decarboxylated, esterification, dihydrojasmonate methyl ester inogona kugadzirwa. Methyl jasmonate dihydrojasmonate imhando yekunaka inodyiwa kwenguva pfupi inobvumidzwa ne GB2760-1996 munyika medu. Kunhuhwirira kwayo kuri nani pane methyl jasmonate yechisikigo, uye hunhu hwayo hwakagadzikana.