所有图片(3)
别名:
2-甲基-2-丁醇钾, 叔戊醇钾
线性分子式:
CH3CH2C(CH3)2OK
CAS号:
分子量:
126.24
Beilstein:
4149025
MDL编号:
UNSPSC代码:
12352001
PubChem化学物质编号:
NACRES:
NA.22
推荐产品
形式
liquid
质量水平
浓度
2 M in THF
密度
0.920 g/mL at 25 °C
SMILES字符串
[K+].CCC(C)(C)[O-]
InChI
1S/C5H11O.K/c1-4-5(2,3)6;/h4H2,1-3H3;/q-1;+1
InChI key
ZRLVQFQTCMUIRM-UHFFFAOYSA-N
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一般描述
Potassiumtert-pentoxide solution is a strong and sterically hindered alkoxide baseprepared by treating oil-free potassium hydride with anhydrous t-pentylalcohol in anhydrous solvent.
应用
Potassium tert-pentoxide solution can be used as a base in the:
- Wittig reaction of ketoesters with methyltriphenylphosphonium bromide to synthesize alkenes.
- Palladium-catalyzed Buchwald-Hartwig amination reaction.
- To prepare potassium tert-pentoxide-crown ether complexes, which is used as a Lewis base catalyst in Mukaiyama aldol reaction.
- As an activator for (difluoromethyl)trimethylsilane to generate difluoromethyl-carbanion which reacts with isothiocyanate to synthesize α, α-difluoromethyl thioamide.
特点和优势
In the absence of air and moisture, potassium tert-pentoxide solutions in benzene or toluene may be stored in a refrigerator for up to 1 year without significant deterioration.
警示用语：
Danger
危险分类
Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 3
靶器官
Central nervous system, Respiratory system
补充剂危害
WGK
WGK 3
闪点(°F)
1.4 °F
闪点(°C)
-17 °C
个人防护装备
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
法规信息
危险化学品
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