azurfa trifluoromethanesulfonate CAS: 2923-28-6
Lambar Catalog | XD93575 |
Sunan samfur | azurfa trifluoromethanesulfonate |
CAS | 2923-28-6 |
Tsarin kwayoyin halittala | Saukewa: CAgF3O3S |
Nauyin Kwayoyin Halitta | 256.94 |
Bayanin Ajiya | yanayi |
Ƙayyadaddun samfur
Bayyanar | Farin foda |
Asay | 99% min |
Azurfa trifluoromethanesulfonate, kuma aka sani da AgOTf, shi ne mai ƙarfi da kuma m reagent amfani a daban-daban sunadarai canje-canje.Nasa ne a cikin aji na karfe triflates, wanda suke da amfani sosai a cikin kwayoyin kira saboda su Lewis acidity da ikon kunna substrates.One daga cikin key aikace-aikace na azurfa trifluoromethanesulfonate ne a matsayin mai kara kuzari a cikin kwayoyin halayen.Yana iya sauƙaƙe canje-canje daban-daban, gami da halayen haɗin gwiwar carbon-carbon, irin su Friedel-Crafts alkylation da halayen acylation, da halayen haɗin gwiwar carbon-nitrogen, kamar N-acylation na amines ko haɗin amides.Halin acidic na Lewis na AgOTf yana ba shi damar daidaitawa tare da abubuwan da ke da wadatar lantarki, wanda ke haifar da kunna takamaiman haɗin sinadarai da sauƙaƙe abin da ake so.Ayyukansa na haɓakawa yana da mahimmanci musamman a cikin haɗakar magunguna, agrochemicals, da kuma sinadarai masu kyau.AgOTf kuma yana da amfani wajen haɓaka haɓakar sake tsarawa da halayen hawan keke.Yana iya haifar da halayen sake tsarawa daban-daban, kamar sake tsarawa Beckmann, wanda ke canza oximes zuwa amides ko esters, ko sake tsara alƙalan alkahol don samar da mahaɗan carbonyl.Bugu da ƙari, yana iya taimakawa a cikin halayen hawan keke, yana ba da damar samuwar mahaɗan cyclic tare da tsarin zobe masu rikitarwa.Halin Lewis acidic na AgOTf yana taka muhimmiyar rawa a cikin waɗannan halayen ta hanyar sauƙaƙe gyare-gyaren haɗin gwiwa da matakan hawan keke. Bugu da ƙari, ana amfani da trifluoromethanesulfonate na azurfa wajen kunna haɗin carbon-hydrogen (CH).Yana iya kunna haɗin CH kusa da ƙungiyoyi masu aiki, kamar a cikin kunna abubuwan haɗin CH na aromatic ko kunna haɗin allylic ko benzylic CH.Wannan kunnawa yana ba da izinin aiki na gaba na haɗin CH, wanda ke haifar da samuwar sabbin abubuwan haɗin carbon-carbon ko carbon-heteroatom.Wannan hanya, wanda aka sani da kunnawa CH, filin girma ne da sauri a cikin haɗin gwiwar kwayoyin halitta kuma yana ba da hanya mai kyau don samun damar yin amfani da sinadarai masu mahimmanci.Yawancin lokaci ana amfani da shi a cikin ƙananan adadi, a matsayin adadin kuzari, saboda yawan reactivity.Ya kamata a kula da yin aiki a cikin wuri mai iska mai kyau da kuma kare reagent daga fallasa zuwa danshi.A taƙaice, azurfa trifluoromethanesulfonate (AgOTf) wani muhimmin reagent ne kuma mai haɓakawa a cikin haɗin gwiwar kwayoyin halitta.Yanayin acidic ɗin sa na Lewis yana ba shi damar kunna substrates, haɓaka sake tsarawa da halayen hawan keke, da kunna haɗin gwiwar CH, wanda ke haifar da samuwar hadadden kwayoyin halitta.Koyaya, dole ne a ɗauki matakan kiyayewa yayin sarrafawa da adana AgOTf don tabbatar da kwanciyar hankali da hana halayen da ba'a so.