3 6-Dihydro-2H-pyran-4-boronic acid pinacol ester (CAS# 287944-16-5)
| Hazard Symbols | Xn – Zvinokuvadza |
| Risk Codes | 22 – Zvinokuvadza kana ikamedzwa |
| Tsanangudzo Yekuchengetedza | S20 - Paunenge uchishandisa, usadye kana kunwa. S35 - Ichi chinhu nechigadziko chayo chinofanira kuraswa nenzira yakachengeteka. |
| WGK Germany | 3 |
| HS Code | 29349990 |
Nhanganyaya
3. acid pinacol ester is an organic compound ine makemikari formula yeC12H19BO3 uye molecular weight ye 214.09g / mol.
Zvakasikwa:
-Kuonekwa: Mvura isina ruvara kana yakasimba
-Kunyungudika:-43 ~-41 ℃
-Kubikira poindi: 135-137 ℃
-Kuwanda: 1.05 g/mL
-Solubility: Soluble in common organic solvents akadai dimethylformamide, dichloromethane, methanol uye ethanol.
Shandisa:
- 3, acid pinacol ester ndeimwe yeakakosha epakati mune organic synthesis. Inogona kushandiswa seajenti yekuvakwa kweC-O neC-C zvisungo, uye inowanzoshandiswa sechinhu chinokonzera C-C coupling reactions seSuzuki reaction uye Stille reaction.
-Mushonga wacho unogonawo kushandiswa kugadzirira mamwe mapoka anoshanda kana makemikari, akadai sealdehydes, ketones uye acids.
Nzira:
- 3, acid pinacol ester inowanzogadzirirwa nekuita Pyran ne boronic acid pinacol pasi pe alkali catalysis. Iyo chaiyo yekugadzirira nzira inogona kusarudzwa maererano nezvinodiwa chaizvo, uye yakajairika nzira yekugadzirira inosanganisira kushandisa sodium borate uye pinacol kuita pasi pemamiriro ealkaline.
Zvekuchengetedza
3, acid pinacol ester inogona kukuvadza hutano uye nharaunda. Kushandisa kunofanirwa kutevedzera nzira dzakafanira dzemurabhoritari uye kuve nemidziyo yekudzivirira inodiwa, senge magirovhosi emurabhoritari nekudzivirira maziso.
Uye zvakare, ruzivo rwakakwana rwekuchengetedza uye mirairo yekushanda inofanirwa kureva kune iyo komponeti yekuchengetedza data sheet (SDS) kana imwe yakavimbika kemikari referensi.
