Motsoako oa Alkyl polyglycoside carbonates

Alkyl polyglycoside carbonates e ile ea lokisoa ka transesterification ea alkyl monoglycosides le diethyl carbonate (Setšoantšo sa 4).Molemong oa ho kopanya ka botlalo li-reactants, ho bonahetse ho le molemo ho sebelisa diethyl carbonate ho feta tekano e le hore e sebetse e le karolo ea transesterification le joalo ka solvent.2Mole-% ea 50% ea tharollo ea sodium hydroxide e kenyelelitsoe ka ho theoha ho motsoako ona ka ho sisinyeha hoo e ka bang 120 ℃. Ka mor'a lihora tse 3 tlas'a reflux, motsoako oa karabelo o lumelloa ho pholile ho 80 ℃ mme o fokotsehile ka 85% ea phosphoric acid.Dithyl carbonate e feteletseng e tšeloa ka vacuo.Tlas'a maemo ana a karabelo, sehlopha se le seng sa hydroxyl se khetha esterified.Karolelano ea educt e setseng ho lihlahisoa ka 1:2.5:1(monoglycoside: Monocarbonate:Polycarbonate).

Ntle le monocarbonate, lihlahisoa tse nang le boemo bo phahameng ba ho nkela sebaka le tsona li thehoa karabelong ena.Tekanyo ea ho eketsa carbonate e ka laoloa ke tsamaiso e nang le tsebo ea karabelo.Bakeng sa C₁₂ monoglycoside, kabo ea mono-,di- le tricarbonate ea 7:3:1 e fumanoa tlas'a maemo a karabelo a sa tsoa hlalosoa (Setšoantšo sa 5).Haeba nako ea karabelo e eketsoa ho 7hours mme haeba 2moles ea ethanol e tlositsoe ka nako eo, sehlahisoa se seholo ke C.₁₂ monoglycoside dicarbonate.Haeba e eketsoa ho 10hours 'me 3moles ea ethanol e tlosoa, sehlahisoa se ka sehloohong se fumanoang ke tricarbonate.Tekanyo ea ho eketsoa ha carbonate 'me ka hona tekanyo ea hydrophilic/lipophilic ea motsoako oa alkyl polyglycoside e ka lokisoa ha bonolo ka ho fapana ha nako ea ho arabela le molumo oa distillate.