I-Scandium trifluoromethanesulfonate, evame ukubizwa ngokuthi i-Scandium(III) triflate, iyinhlanganisela yamakhemikhali ne-formula Sc(SO3CF3)3, usawoti ohlanganisa ama-scandium cations Sc3+ kanye ne-triflate SO3CF3?ama-anions.
I-Scandium(III) triflate iyi-acylation catalyst esebenza kakhulu, esebenza kahle, ebuyiselekayo futhi esebenzisekayo kabusha.I-catalyst ebalulekile ye-Friedel-Crafts acylation, ukusabela kwe-Diels-Alder nokunye ukusabela kokwenza ibhondi ye-carbon-carbon.Iphinde ithuthukise i-radical polymerization yama-acrylates.I-Scandium(III) triflate complex ye-(4′S,5′S)-2,6-bis[4′-(triisopropylsilyl)oxymethyl-5′-phenyl-1′,3′-oxazolin-2′-yl]pyridine isetshenziswe njenge-catalyst ye-asymmetric Friedel-Crafts reaction phakathi kwama-indoles afakwe endaweni kanye ne-methyl (E) -2-oxo-4-aryl-3-butenoates.
| Izinto | Ukucaciswa | Imiphumela yokuhlolwa |
| Ukubukeka | Okuqinile Okumhlophe noma Okumhlophe | Kuyavumelana |
| Ubumsulwa | 98% iminithi | 99.3% |
| Isiphetho: Ufanelekile. | ||
I-Scandium(III) trifluoromethanesulfonate isetshenziswa kabanzi njenge-catalyst ku-hydrothiolation, ukukhetha ama-electron amabili ukunciphisa umoya-mpilo ngokuphuma kwe-ferrocene kanye ne-vinylogous Fridel-crafts alkylation ye-indoles ne-pyrrole emanzini.Ibandakanyeka ekwengezweni kwe-Mukaiyama aldol futhi i-stereochemically ivuselela i-radical polymerization yama-acrylates.Isebenza njenge-Lewis acid catalyst futhi isetshenziswa ekuhlanganiseni kwe-bullvalone nge-stable ylide yesulfure.
Isevisi esingayinikeza
1) Inkontileka esemthethweni ingasayinwa
2) Isivumelwano sokugcinwa kuyimfihlo singasayinwa
3) Isiqinisekiso sokubuyiselwa imali sezinsuku eziyisikhombisa
Okubaluleke nakakhulu: asikwazi ukunikeza umkhiqizo kuphela, kodwa isevisi yesixazululo sobuchwepheshe!
Singabakhiqizi, imboni yethu itholakala eShandong, kodwa futhi singakunikeza insizakalo eyodwa yokuthenga!
T/T(i-telex transfer), Western Union, MoneyGram, BTC(bitcoin), njll.
≤25kg: zingakapheli izinsuku ezintathu zokusebenza ngemuva kokutholwa kwenkokhelo.＞25kg: isonto elilodwa
Iyatholakala, singanikeza amasampula amancane mahhala ngenjongo yokuhlola ikhwalithi!
1kg isikhwama ngasinye fpr amasampula, 25kg noma 50kg isigubhu ngasinye, noma njengoba ubufuna.
Gcina isitsha sivalwe ngokuqinile endaweni eyomile, epholile futhi enomoya omuhle.
