pāhare pāporo（KTB） CAS:865-47-4

He whānuitia te whakamahinga o te pāhare pākawa t-butoxide (KTB) i roto i te matū waro nā ōna āhuatanga taketake kaha me tōna āhua kore-nucleophilic. Ko tētahi o ōna whakamahinga matua ko te tango i te protonation o ngā hauwai waikawa i roto i ngā pūhui waro hei hanga hononga waro-waro me te waro-heteroatom. Nā tēnei āhuatanga ka whai hua i roto i ngā tauhohenga pēnei i te whakakotahitanga aldol, te whakakotahitanga Claisen, me ngā tāpiritanga Michael. Hei tāpiri, he turanga te KTB i roto i ngā tauhohenga whakakorenga, e whakatairanga ana i te hanganga o ngā alkenes mai i ngā halide, i ngā waipiro rānei. Hei tāpiri, ka whakamahia te pāhare pākawa t-butoxide i roto i te hanganga o ngā rongoā, ngā matū ahuwhenua, me ngā rauemi waro mahi. Nā tōna āhua kore-nucleophilic ka pai mō ngā tauhohenga e uru ana ki ngā rōpū mahi tairongo ka pāngia e ngā tauhohenga nucleophilic. Ka āwhina hoki te KTB i te whakarite i ngā ethers, ngā esters, me ētahi atu matū waro mā tōna whai wāhi ki te hanganga Williamson ether me ngā tauhohenga esterification. Haunga tōna tūranga i roto i te matū hanga, ka whakamahia te pāhare pākawa t-butoxide i roto i te hanga rauemi polymer, inā koa hei whakakorikori, hei whakaoho rānei i roto i te hanganga o ngā polyolefin me ētahi atu polymer. Nā tōna kaha taketake me tōna wairewatanga ki ngā whakarewa rauropi maha, he mea whai hua tēnei hei matū mō ēnei tono. Heoi anō, kei te whai wāhi a KTB ki te whakarerekētanga me te mahi a ngā mata me ngā rauemi, inā koa i roto i te mara o te pūtaiao rauemi. Ka whakamahia hei whakauru i ngā rōpū mahi motuhake ki runga i ngā mata, i ngā papa rānei, ka taea ai ngā taunekeneke kua whakaritea mō ngā tono maha, pērā i roto i ngā pūoko, ngā paninga, me ngā taputapu hauora. I te nuinga, nā ngā tono maha o te pāhare pākawa t-butoxide i waiho hei matū taketake i roto i te hanganga rauropi, te pūtaiao rauemi, me te matū polymer. Nā tōna huinga ahurei o te kaha taketake me te whanonga kore-nucleophilic ka taea ai ngā panonitanga rerekē me te whakaiti i ngā tauhohenga taha kāore e hiahiatia, ka waiho hei mea nui i roto i te rangahau matū hou me ngā tukanga ahumahi.