Litiumu trifluoromethanesulfonate CAS: 33454-82-9
Nọmba katalogi | XD93576 |
Orukọ ọja | Lithium trifluoromethanesulfonate |
CAS | 33454-82-9 |
Fọọmu Molecularla | CF3LiO3S |
Òṣuwọn Molikula | 156.01 |
Awọn alaye ipamọ | Ibaramu |
Ọja Specification
Ifarahan | funfun lulú |
Asay | 99% iṣẹju |
Lithium trifluoromethanesulfonate, tun mo bi LiOTf, jẹ ẹya pataki reagent ati ayase ni Organic kolaginni.O jẹ iyọ ti a ṣe nipasẹ apapo awọn cations litiumu (Li +) ati awọn anions trifluoromethanesulfonate (OTf-).LiOTf ti wa ni lilo pupọ ni ọpọlọpọ awọn aati kemikali nitori awọn ohun-ini alailẹgbẹ rẹ ati agbara lati dẹrọ awọn iyipada ti o fẹ. Ọkan ninu awọn ohun elo bọtini ti lithium trifluoromethanesulfonate jẹ bi ayase Lewis acid.O le mu ọpọlọpọ awọn ẹgbẹ iṣẹ ṣiṣẹ ati awọn sobusitireti, igbega awọn aati ti o kan dida awọn iwe ifowopamosi tuntun.LiOTf jẹ doko gidi gaan ni ṣiṣayẹwo imuṣiṣẹ ti awọn ifunmọ carbon-oxygen (CO), gẹgẹbi ninu iṣesi acetalization, nibiti o ti ṣe irọrun dida awọn acetals lati awọn ọti-lile.O tun le mu awọn iwe ifowopamosi heteroatom miiran ṣiṣẹ, gẹgẹbi awọn iwe ifowopamọ carbon-nitrogen (CN), ti o mu dida awọn amides tabi imines ṣiṣẹ.Lilo LiOTf gẹgẹbi ayase ngbanilaaye fun awọn ipo iṣesi kekere, awọn ibeere agbara kekere, ati ilọsiwaju yiyan.Litiumu jẹ ion irin ti o wulo ti o le kopa ninu ọpọlọpọ awọn aati, gẹgẹbi awọn aati isọpọ agbelebu irin-catalyzed ati awọn aati fidipo nucleophilic.LiOTf n pese orisun ti o rọrun ati imurasilẹ ti lithium fun awọn iyipada wọnyi.Ni afikun, trifluoromethanesulfonate anion le ṣiṣẹ bi counterion, iwọntunwọnsi idiyele ti lithium cation ati imuduro awọn agbedemeji ifaseyin.Pẹlupẹlu, LiOTf wa awọn ohun elo ni kemistri sintetiki fun agbara rẹ lati solubilize ati iduroṣinṣin awọn agbedemeji ifaseyin.O le ṣe bi ohun mimu iṣakojọpọ, irọrun awọn aati ti o kan awọn ayase irin iyipada tabi awọn eya ifaseyin miiran.Pẹlupẹlu, LiOTf nigbagbogbo nlo bi elekitiriki ninu awọn batiri lithium-ion nitori iduroṣinṣin rẹ ati ionic conductivity ga.O yẹ ki o wa ni ipamọ ni itura, ibi gbigbẹ, kuro lati ọrinrin ati awọn orisun ooru.Gẹgẹbi awọn iyọ litiumu miiran, LiOTf jẹ eewu ti jijẹ igbona ati pe o le gbe awọn eefin majele jade nigbati o ba farahan si awọn iwọn otutu giga.Ni akojọpọ, lithium trifluoromethanesulfonate (LiOTf) jẹ reagent to wapọ ati ayase ni iṣelọpọ Organic.Lewis acidity rẹ, agbara lati pese awọn cations lithium, ati awọn ohun-ini solubilizing jẹ ki o niyelori fun ọpọlọpọ awọn iyipada kemikali.Sibẹsibẹ, mimu to dara ati awọn iṣọra ibi ipamọ yẹ ki o mu lati rii daju lilo ailewu rẹ.