Lihlahisoa

Lithium trifluoromethanesulfonate, eo hape e tsejoang ka hore ke LiOTf, ke reagent ea bohlokoa ebile e thusa ka har'a organic synthesis.Ke letsoai le entsoeng ka motsoako oa lithium cations (Li +) le trifluoromethanesulfonate anions (OTf-).LiOTf e sebelisoa haholo mekhoeng e sa tšoaneng ea lik'hemik'hale ka lebaka la thepa ea eona e ikhethang le bokhoni ba ho nolofatsa liphetoho tse lakatsehang.E 'ngoe ea lisebelisoa tsa bohlokoa tsa lithium trifluoromethanesulfonate e le Lewis acid catalyst.E ka kenya tšebetsong lihlopha tse fapaneng tsa ts'ebetso le li-substrates, e khothaletsa karabelo e kenyelletsang ho theoa ha litlamo tse ncha.LiOTf e sebetsa hantle haholo ho qaleng ts'ebetso ea li-bond tsa carbon-oxygen (CO), joalo ka karabelo ea acetalization, moo e thusang ho theoa ha li-acetals ho tsoa ho joala.E ka boela ea kenya li-bond tse ling tse nang le heteroatom, tse kang li-bond tsa carbon-nitrogen (CN), tse nolofalletsang ho thehoa ha li-amides kapa imines.Tšebeliso ea LiOTf e le mohloli o lumella maemo a bonolo a ho itšoara, litlhoko tse fokolang tsa matla, le khetho e ntlafetseng.LiOTf e boetse e sebelisoa e le mohloli oa lithium cations liketsong tse fapa-fapaneng.Lithium ke ione ea tšepe e sebetsang e ka nkang karolo mefuteng e mengata ea karabelo, joalo ka karabelo ea tšepe-catalyzed cross-coupling reactions le nucleophilic substitution reactions.LiOTf e fana ka mohloli o bonolo le o fumanehang habonolo oa lithium bakeng sa liphetoho tsena.Ho phaella moo, anion ea trifluoromethanesulfonate e ka sebetsa e le counterion, ho leka-lekanya tefiso ea lithium cation le ho tsitsisa li-intermediates tse sebetsang.E ka sebetsa e le motsoako o hokahanyang, o nolofatsang karabelo e kenyelletsang li-catalyst tsa tšepe ea phetoho kapa mefuta e meng e sebetsang.Ho feta moo, LiOTf hangata e sebelisoa e le electrolyte ka libeteri tsa lithium-ion ka lebaka la botsitso ba eona le conductivity e phahameng ea ionic. Ho bohlokoa ho hlokomela hore LiOTf e lokela ho sebetsoa ka hloko ka lebaka la ts'ebetso ea eona e ka bang teng hape le ho cha.E lokela ho bolokoa sebakeng se phodileng, se omileng, hole le mongobo le mehloli ea mocheso.Joalo ka matsoai a mang a lithium, LiOTf e beha kotsi ea ho bola ha mocheso 'me e ka hlahisa mosi o chefo ha o pepesehetse mocheso o phahameng.Acidity ea eona ea Lewis, bokhoni ba ho fana ka lithium cations, le thepa ea solubilizing e etsa hore e be ea bohlokoa bakeng sa liphetoho tse fapaneng tsa lik'hemik'hale.Leha ho le joalo, ho lokela ho nkoa mehato e nepahetseng ea ho sebetsana le polokelo ho netefatsa hore e sebelisoa ka mokhoa o sireletsehileng.