194905
12-冠醚-4
98%
别名:
1,4,7,10-四氧环十二烷
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关于此项目
经验公式（希尔记法）:
C8H16O4
化学文摘社编号:
分子量:
176.21
UNSPSC Code:
12352005
NACRES:
NA.22
PubChem Substance ID:
EC Number:
206-036-5
Beilstein/REAXYS Number:
1363064
MDL number:
Assay:
98%
Form:
liquid
InChI key
XQQZRZQVBFHBHL-UHFFFAOYSA-N
InChI
1S/C8H16O4/c1-2-10-5-6-12-8-7-11-4-3-9-1/h1-8H2
SMILES string
C1COCCOCCOCCO1
assay
98%
form
liquid
Quality Level
reaction suitability
core: crown ether
refractive index
n20/D 1.463 (lit.)
bp
61-70 °C/0.5 mmHg (lit.)
mp
16 °C (lit.)
density
1.089 g/mL at 25 °C (lit.)
functional group
ether
General description
12-冠醚-4是一种冠醚，通常用作配位化学中的配体。由于对锂阳离子具有很强的特异性螯合能力，它还是一种锂离子载体。
Application
12-冠醚-4可用作：
- 通过阴离子开环聚合反应以六乙基环三硅氧烷单体和NaOH催化剂合成聚（二乙基硅氧烷） (PDES)
- 作为添加剂用于通过芳基溴与二芳基甲烷之间的钯催化交叉偶联反应制备三芳基甲烷衍生物
- 有机合成中的相转移催化剂
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 1 Inhalation
存储类别
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
235.4 °F - closed cup
flash_point_c
113 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Changna Yin et al.
Rapid communications in mass spectrometry : RCM, 34(9), e8719-e8719 (2020-01-04)
The poly(ethylene oxide) (PEO)-alkali metal cation interaction is widely used in many areas. The conformation of the PEO-alkali metal cation complex has been studied extensively, but the conformational mechanism is still unclear. Simulations have been used to explain the mechanism
Multilayered ion-imprinted membranes with high selectivity towards Li+ based on the synergistic effect of 12-crown-4 and polyether sulfone
Lu J, et al.
Applied Surface Science, 427, 931-941 (2018)
Márkó Grabarics et al.
The Analyst, 145(19), 6313-6333 (2020-07-28)
In the past decade, ion mobility spectrometry (IMS) in combination with mass spectrometry (IM-MS) became a widely employed technique for the separation and structural characterization of ionic species in the gas phase. Similarly to chromatography, where studies on the mechanism
Additive effects on palladium-catalyzed deprotonative-cross-coupling processes (DCCP) of sp 3 C-H bonds in diarylmethanes
Bellomo A, et al.
Chemical Science, 4(2), 849-857 (2013)
1, 4, 7, 10-Tetraoxacyclododecane (12-crown-4) as neutral carrier for lithium ion in lithium ion selective electrode
Gadzekpo VPY and Christian GD
Analytical Letters, 16(17-18), 1371-1380 (1983)
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