3 6-Dihydro-2H-pyran-4-boronic acid pinacol ester（CAS# 287944-16-5)
| Nā hōʻailona pōʻino | Xn – Poino |
| Nā Code Risk | 22 - Poino ke aleia |
| Ka wehewehe palekana | S20 - I ka hoʻohana ʻana, mai ʻai a inu ʻole. S35 - Pono e hoʻolei ʻia kēia mea a me kāna ipu i kahi ala palekana. |
| WGK Kelemānia | 3 |
| HS Code | 29349990 |
Hoʻolauna
3. ʻO ka acid pinacol ester he mea hoʻohuihui me ka paona kemika o C12H19BO3 a me ke kaumaha molekala o 214.09g/mol.
ʻAno:
-Ke ʻano: wai kala ʻole a paʻa paha
-Lae hehee:-43 ~-41 ℃
-Pila paila: 135-137 ℃
-Nā: 1.05 g/mL
-Solubility: Hiki ke hoʻoheheʻe ʻia i nā mea hoʻoheheʻe kūlohelohe maʻamau e like me dimethylformamide, dichloromethane, methanol a me ka ethanol.
E hoʻohana:
- 3, acid pinacol ester ʻo ia kekahi o nā mea koʻikoʻi i ka synthesis organik. Hiki ke hoʻohana ʻia ma ke ʻano he reagent no ke kūkulu ʻana i nā mea paʻa C-O a me C-C, a hoʻohana pinepine ʻia e like me ka catalyst no ka C-C coupling reactions e like me Suzuki reaction a Stille reaction.
- Hiki ke hoʻohana ʻia ka pūhui e hoʻomākaukau i nā hui hana ʻē aʻe a i ʻole nā huihui, e like me nā aldehydes, ketones a me nā waikawa.
Hanana:
- 3, hoʻomākaukau ʻia ka ester acid pinacol ma ka hana ʻana iā Pyran me ka boronic acid pinacol ma lalo o ka catalysis alkali. Hiki ke koho ʻia ke ʻano hoʻomākaukau kūikawā e like me nā koi maoli, a ʻo kahi ʻano hoʻomākaukau maʻamau e pili ana i ka hoʻohana ʻana i ka sodium borate a me ka pinacol e hana ai ma lalo o nā kūlana alkaline.
ʻIke palekana:
3, hiki i ka acid pinacol ester ke pōʻino i ke olakino a me ke kaiapuni. Pono e hoʻohana i nā kaʻina hana hoʻokolohua kūpono a hoʻolako ʻia me nā lako pale pilikino e pono ai, e like me nā mīkina lima lima a me ka pale maka.
Eia hou, pono e pili ka ʻike palekana a me nā ʻōlelo aʻoaʻo i ka pepa ʻikepili palekana (SDS) a i ʻole nā mea kuhikuhi kemika hilinaʻi.
