叔戊氧基钾溶液，Potassium tert-pentoxide solution；2 M in THF

别名：2-甲基-2-丁醇钾；叔戊醇钾；Potassium (2-methyl-2-butoxide), Potassium tert-pentylate

线性分子式: CH3CH2C(CH3)2OK CAS号: 41233-93-6 分子量: 126.24 Beilstein: 4149025 MDL编号: MFCD00064808 PubChem化学物质编号: 329762401 NACRES: NA.22

制造商品牌: Sigma-Aldrich

货号（SKU）: 702757

CAS号: 41233-93-6

MDL号: MFCD00064808

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目录价.SKU-Variant

100mL
500mL [+¥3,733.60]

¥1,495.62

数量:

说明

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.

It can also be used:

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.

属性

形式

liquid

浓度

2 M in THF

密度

0.920 g/mL at 25 °C

SMILES string

[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

安全信息

象形图

GHS02,GHS05,GHS07,GHS08

警示用语：

Danger

危险声明

H225 - H302 - H314 - H335 - H336 - H351

预防措施声明

P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

危险分类

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B

补充剂危害

EUH019

储存分类代码

3 - Flammable liquids

WGK

WGK 3

闪点(F)

1.4 °F - Solvent

闪点(C)

-17 °C - Solvent

个人防护装备

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

商品规格

属性名称	属性值
储存温度 Storage temp.	常温阴凉避光
全球实时库存 Availability √	美国St. Louis ≥ 99 \| 欧洲Eur. ≥ 10 \| 東京Tokyo ≥ 22 \| 香港与北京 ≥ 32

商品标签 [tags]