Cyclopentanone CAS 120-92-3

1. Mai ka cyclopentanone a me ka n-valeraldehyde ma ke ʻano he mau mea maka, ua hoʻokumu ʻia ka amyl cyclopentanone e ka aldol condensation a me ka dehydration, a laila hana ʻia ka hydrogenation catalytic koho e hana i ka amyl cyclopentanone. Loaʻa i ka Amyl cyclopentanone ka ʻala pua a me ka hua a me ka ʻono jasmine, a hiki ke hoʻohana ʻia i loko o ke ʻano ʻono kemika o kēlā me kēia lā, hiki ke emi ma lalo o 20% ka dosage. ʻAʻohe kapu o IFRA.

2. Hoʻomākaukau ʻia ʻo Hexylcyclopentanone mai n-hexylaldehyde a me cyclopentanone ma o ka condensation a laila hydrogenation koho. He ʻala jasmine ikaika ko Hexylcyclopentanone a hele pū me ka ʻala hua, a hiki ke hoʻohana ʻia i loko o ka mea ʻala a me nā ʻano kemika ʻē aʻe o kēlā me kēia lā me ka dosage i loko o 5%. ʻAʻohe kapu o IFRA.

3. 1-pentene a i ʻole 1-heptene i loaʻa ma o ka haki ʻana o ka paraffin a i ʻole ka dehydration waiʻona e like me nā mea maka, i ke alo o ka di-tert-butyl peroxide ma ke ʻano he mea hoʻomaka, ka hopena hoʻohui hui manuahi me ka cyclopentanone e hana i ka 2-amyl cyclopentanone (a i ʻole 2-heptyl cyclopentanone), ma hope o ka oxidation e lilo i delta-decalactone (a i ʻole delta-dodecalactone).

4. ʻO ke ala hana me ka cyclopentanone ma ke ʻano he mea hoʻomaka ka waiwai hana ʻoihana nui loa. Hoʻopili mua ʻia ʻo Cyclopentanone me ka n-valeraldehyde, a ua hoʻomaloʻo ʻia ka hopena Chemicalbook a ua koho ʻia ka hydrogenated e hana i ka 2-amylcyclopentanone, a ma hope e hana i ka delta-decalactone ma o ka hoʻonui ʻana o ke apo oxidative.

Hoʻohana nui ʻia ʻo 5.delta-decanolactone i nā ʻano meaʻai ʻono, kahi i manaʻoʻiʻo ʻia he ʻono ʻano like me ka kirīmi maoli. Ma mua o kēia, no ka manawa lōʻihi, ua kaupalena wale ʻia nā mea hana ʻala i ka hoʻohana ʻana i nā mea ʻala monomer e like me ka butanedione a me ka vanillin ma ke ʻano he mea maka nui no ka hoʻomākaukau ʻana i ka ʻono kirīmi. Eia nō naʻe, manaʻo ka poʻe he ʻoi aku ka liʻiliʻi o ka ʻono kirīmi i hui ʻia ma mua o ka huahana kūlohelohe ma ke ʻano o ka ʻono a i ʻole ka ʻono. Ma hope wale nō o ka hoʻohana ʻana i ka delta-decalactone, hiki ke loaʻa kahi ʻono maoli o ka kirīmi, ʻoiai ka hui pū ʻana o ka delta-decalactone a me ka delta-dodecalactone ma ke ʻano he mea ʻala nui, ʻoi aku ka maikaʻi o ka ʻono a me ka hopena o ka ʻono kirīmi i hoʻomākaukau ʻia.

6. me ka hoʻohana ʻana i ka cyclopentanone a me valeraldehyde ma ke ʻano he mea maka, condensation e hana i ka 2-(1-hydroxyl) amyl cyclopentanone, ka hopena me ka dimethyl malonate, a laila hydrolysis ma 160 ~ 180 ℃, decarboxylated, esterification, dihydrojasmonate methyl ester hiki ke hoʻomākaukau ʻia. ʻO Methyl jasmonate dihydrojasmonate kahi mea ʻono ʻai manawa pōkole i ʻae ʻia e GB2760-1996 ma ko mākou ʻāina. ʻOi aku ka maikaʻi o kona ʻala ma mua o ka methyl jasmonate kūlohelohe, a paʻa kona mau waiwai.