Cyclopentanone CAS 120-92-3

1.Daga cyclopentanone da n-valeraldehyde a matsayin albarkatun kasa, amyl cyclopentanone an kafa shi ta hanyar aldol condensation da dehydration, sa'an nan kuma zaɓaɓɓen catalytic hydrogenation aka yi don samar da amyl cyclopentanone. Amyl cyclopentanone yana da kamshi mai ƙarfi na fure da 'ya'yan itace da ɗanɗanon jasmine, kuma ana iya amfani dashi a cikin dabarar dandano na sinadarai na yau da kullun, adadin zai iya zama ƙasa da 20%. IFRA ba ta da hani.

2. An shirya Hexylcyclopentanone daga n-hexylaldehyde da cyclopentanone ta hanyar condensation sannan kuma zaɓaɓɓen hydrogenation. Hexylcyclopentanone yana da ƙanshin jasmine mai ƙarfi kuma yana tare da ƙamshin 'ya'yan itace, kuma ana iya amfani dashi a cikin turare da sauran abubuwan dandano na sinadarai na yau da kullun tare da sashi a cikin 5%. IFRA ba ta da hani.

3. 1-pentene ko 1-heptene da aka samu ta hanyar fashewar paraffin ko daidaitaccen barasa kamar kayan albarkatun kasa, a gaban di-tert-butyl peroxide a matsayin mai ƙaddamarwa, ƙarar ƙungiyar kyauta tare da cyclopentanone don samar da 2-amyl cyclopentanone (ko 2-heptyl cyclopentanone), bayan oxidation ya zama delta-decalactone (ko delta-dodecalactone).

4. Hanyar haɗuwa tare da cyclopentanone a matsayin kayan farawa yana da mafi yawan ƙimar samar da masana'antu. An fara tattara Cyclopentanone tare da n-valeraldehyde, kuma sakamakon hakar sinadarai ya bushe kuma an zaɓi hydrogenated don samar da 2-amylcyclopentanone, kuma a ƙarshe ya samar da delta-decalactone ta hanyar haɓaka zobe na oxidative.

5.delta-decanolactone an fi amfani dashi a cikin abubuwan dandano na abinci, inda aka yi imanin yana da dandano na dabi'a na halitta. Kafin wannan, na dogon lokaci, masu turare sun iyakance ne kawai ga amfani da kayan kamshi na monomer irin su butanedione da vanillin a matsayin babban kayan da ake shirya ɗanɗanon kirim. Duk da haka, mutane gabaɗaya suna jin cewa ɗanɗanon kirim ɗin da aka haɗe ya yi ƙasa da samfurin halitta ta fuskar dandano ko dandano. Sai kawai bayan yin amfani da delta-decalactone, za'a iya samun dandano na gaskiya na kirim, musamman ma hade da delta-decalactone da delta-dodecalactone a matsayin babban kayan ƙanshi mai ƙanshi, dandano da tasirin kirim ɗin da aka shirya ya fi kyau.

6.ta yin amfani da cyclopentanone da valeraldehyde a matsayin albarkatun kasa, ƙaddamarwa don samar da 2- (1-hydroxyl) amyl cyclopentanone, amsawa tare da dimethyl malonate, sa'an nan kuma hydrolysis a 160 ~ 180 ℃, decarboxylated, esterification, dihydrojasmonate methyl ester za a iya shirya. Methyl jasmonate dihydrojasmonate shine ɗanɗano mai ɗanɗano na ɗan lokaci wanda GB2760-1996 ya halatta a ƙasarmu. Kamshinsa ya fi na methyl jasmonate na halitta, kuma kaddarorinsa sun tabbata.