Scandium trifluoromethanesulfonate, ti a npe ni Scandium (III) triflate, jẹ kemikali kemikali pẹlu agbekalẹ Sc (SO3CF3) 3, iyọ ti o ni awọn cations scandium Sc3+ ati triflate SO3CF3? aniyan.
Scandium (III) triflate jẹ ohun ti nṣiṣe lọwọ lalailopinpin, daradara, imularada ati ayase acylation atunlo. O jẹ ayase pataki fun Friedel-Crafts acylation, awọn aati Diels-Alder ati awọn aati idawọle erogba-erogba miiran. O tun stereochemically ṣe itọsi polymerization ti ipilẹṣẹ ti acrylates. Scandium (III) triflate eka ti (4′S,5′S)-2,6-bis[4′-(triisopropylsilyl)oxymethyl-5′-phenyl-1′,3′-oxazolin-2′-yl]pyridine ti gba iṣẹ bi ayase fun ifaseyin Friedel-Crafts asymmetric laarin awọn indoles ti o rọpo ati methyl (E) -2-oxo-4-aryl-3-butenoates.
Awọn nkan | Sipesifikesonu | Awọn abajade idanwo |
Ifarahan | Funfun tabi Paa-funfun ri to | Ni ibamu |
Mimo | 98% iṣẹju | 99.3% |
Ipari: Oye. |
Scandium (III) trifluoromethanesulfonate ti wa ni lilo pupọ bi ayase ni hydrothiolation, yiyan meji-electron idinku ti atẹgun nipasẹ ferrocene awọn itọsẹ ati vinylogous Fridel-crafts alkylation ti indoles ati pyrrole ninu omi. O ṣe alabapin ninu afikun Mukaiyama aldol ati stereochemically ṣe itọsi polymerization radical ti acrylates. O ṣe bi ayase acid Lewis ati lilo ninu iṣelọpọ ti bullvalone nipasẹ sulfur ylide ti o ni iduroṣinṣin.
A jẹ olupese, ile-iṣẹ wa wa ni Shandong, ṣugbọn a tun le pese iṣẹ rira iduro kan fun ọ!
T/T (gbigbe telex), Western Union, MoneyGram, BTC (bitcoin), ati bẹbẹ lọ.
≤25kg: laarin awọn ọjọ iṣẹ mẹta lẹhin ti owo ti gba. 25kg: ọsẹ kan
Wa, a le pese awọn ayẹwo ọfẹ kekere fun idi idiyele didara!
1kg fun apo fpr awọn ayẹwo, 25kg tabi 50kg fun ilu kan, tabi bi o ṣe nilo.
Tọju apoti naa ni wiwọ ni pipade ni gbigbẹ, itura ati aaye ti o ni afẹfẹ daradara.