I-Trifluoromethanesulfonic anhydride CAS:358-23-6

I-N-Trifluoromethanesulfonic anhydride (Tf2O) ibonakaliswa ngesakhiwo sayo sama-molecule, enamaqembu amabili e-trifluoromethanesulfonyl (-CF3SO2) axhunywe yi-athomu ye-oxygen. Lokhu kulungiselelwa kunikeza i-Tf2O ukusebenza kahle nokuzinza okumangalisayo, okwenza ibe yi-reagent ekhethwayo ekuguqulweni okunzima kokwenziwa. I-Tf2O ivame ukuphathwa njengoketshezi olucacile, olungenambala olunephuzu eliphezulu lokubila futhi ikhombisa ukuncibilika okunamandla ezinyibilikisini eziphilayo ezifana ne-dichloromethane ne-chloroform. Ukuqina kwayo ngaphansi kwezimo ezahlukahlukene, kuhlanganiswe ne-asidi yayo enamandla, kuthuthukisa ukusebenza kwayo ekwenziweni kwezinto eziphilayo eziyinkimbinkimbi ezidinga ukulawulwa okunembile kwezimo zokusabela. Isebenzisa i-Organic Synthesis: I-Tf2O isebenza njenge-reagent eguquguqukayo ekwenziweni kwezinto eziphilayo, ikakhulukazi ekusabeleni okudinga ukusebenza okunamandla kwe-electrophilic. Ivame ukusetshenziswa ekwakhiweni kwama-alcohols, ama-amine, nama-phenols ukwakha ama-esters, ama-amide, nama-sulfonamides, ngokulandelana. Leli khono libalulekile ekuthuthukisweni kwama-intermediates emithi, amakhemikhali ezolimo, nezinto ezithuthukisiwe ezinezakhiwo ezilungiselelwe. I-Polymer Chemistry: Ezinqubweni ze-polymerization, i-Tf2O yenza kube lula ukuguqulwa kwamaketanga e-polymer ngokusebenzisa ukusabela kwe-sulfonation, ukuthuthukisa ukuncibilika kwe-polymer, ukuzinza, kanye nokusebenza. Amandla ayo okungenisa amaqembu e-sulfonic acid athuthukisa ukusebenza kwe-polymer ezicelweni ezahlukene zezimboni, kufaka phakathi ukumbozwa, ama-membrane, kanye nama-ion exchange resins. Amakhemikhali Ahlanzekile: I-Tf2O ithola ukusetshenziswa ekuhlanganisweni kwamakhemikhali amahle njengedayi, izinto ezisetshenziswayo zemithi, kanye nama-reagent akhethekile. Ukusebenza kwayo okukhethayo kwenza ukusebenza okunembile kwama-molecule e-organic, okubalulekile ekuthuthukiseni umsebenzi webhayoloji kanye nokuqina kwamakhemikhali emikhiqizweni yokugcina. Ukwenziwa I-Trifluoromethanesulfonic anhydride yenziwa ngokusabela kwe-trifluoromethanesulfonic acid (TfOH) ne-acetic anhydride. Le nqubo ihilela ukwengezwa okulawulwayo kwe-acetic anhydride ku-TfOH ngaphansi kwezimo ezingenamanzi, okuholela ekwakhekeni kwe-Tf2O kanye ne-acetic acid njengomkhiqizo olandelanayo. Ukusabela ngokuvamile kudinga ukulawulwa kokushisa okucophelelayo kanye nomoya ongangeni ukuze kuvinjelwe ukusabela okungafuneki okungekuhle nokuqinisekisa isivuno esikhulu se-Tf2O. Amasu okuhlanza anjengokuhluza noma ukukhipha i-solvent asetshenziswa ukuhlukanisa i-Tf2O ngobumsulwa obuphezulu obufanele ukusetshenziswa kwezimboni. Ngamafuphi, i-anhydride ye-trifluoromethanesulfonic iyi-reagent enamandla futhi eguquguqukayo esetshenziswa kakhulu ekuhlanganiseni izinto eziphilayo, i-polymer chemistry, kanye nokukhiqizwa kwamakhemikhali amahle. Ukusebenza kwayo okuqinile, ukuzinza, kanye namakhono okukhetha okwenza kube yinto ebalulekile ekuthuthukiseni ubuchwepheshe emikhakheni eyahlukene yezimboni kanye nemikhakha yesayensi. Ukuhlanganiswa okulawulwayo kanye nokusetshenziswa okunembile kwe-Tf2O kunegalelo elikhulu ekuthuthukisweni kwezinto ezintsha kanye nama-compounds anokusebenza okuthuthukisiwe kanye nokusebenza.