3 6-Dihydro-2H-pyran-4-boronic acid pinacol ester (CAS# 287944-16-5)
| Izimpawu Eziyingozi | I-Xn - Iyingozi |
| Amakhodi Engozi | 22 – Kuyingozi uma kugwinywe |
| Incazelo Yokuphepha | S20 – Uma usebenzisa, ungadli noma uphuze. S35 – Le nto kanye nesiqukathi sayo kumele kulahlwe ngendlela ephephile. |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29349990 |
Isingeniso
3. i-acid pinacol ester iyinhlanganisela ye-organic enefomula yamakhemikhali engu-C12H19BO3 kanye nesisindo se-molecular 214.09g/mol.
Imvelo:
-Ukubukeka: Uketshezi olungenambala noma oluqinile
-Indawo Encibilikayo:-43 ~-41 ℃
-Indawo yokubilisa: 135-137 ℃
-Ukuminyana: 1.05 g/mL
-I-Solubility: I-Soluble kuma-solvents avamile afana ne-dimethylformamide, i-dichloromethane, i-methanol ne-ethanol.
Sebenzisa:
- 3, i-acid pinacol ester ingenye yezinto ezibalulekile ku-organic synthesis. Ingasetshenziswa njenge-reagent yokwakha amabhondi e-C-O kanye ne-C-C, futhi ivame ukusetshenziswa njenge-catalyst ye-C-C yokuhlanganisa ukusabela okufana nokusabela kwe-Suzuki kanye nokusabela kwe-Stille.
-I-compound ingasetshenziswa futhi ukulungisa amanye amaqembu asebenzayo noma ama-compounds, njenge-aldehydes, i-ketones nama-acids.
Indlela:
- 3, i-acid pinacol ester ngokuvamile ilungiswa ngokusabela i-Pyran nge-boronic acid pinacol ngaphansi kwe-alkali catalysis. Indlela ethile yokulungiselela ingakhethwa ngokwezidingo zangempela, futhi indlela evamile yokulungiselela ihlanganisa ukusebenzisa i-sodium borate ne-pinacol ukuze kusabele ngaphansi kwezimo ze-alkali.
Ulwazi Lokuphepha:
3, i-acid pinacol ester ingase ibe yingozi empilweni nasemvelweni. Ukusetshenziswa kufanele kulandele izinqubo ezifanele zaselabhorethri futhi kufakwe izinto zokuzivikela ezidingekayo, njengamagilavu aselabhorethri nokuvikela amehlo.
Ukwengeza, ulwazi oluthile lokuphepha kanye neziyalezo zokusebenza kufanele kubhekisele eshidini ledatha yezokuphepha yenkampani (SDS) noma enye inkomba yamakhemikhali ethembekile.
