405329
三氟甲烷磺酸镱 水合物
Yb 25-28 % (approx.)
别名:
Yb(OTf)3, 三氟甲磺酸 镱盐, 三氟甲磺酸镱
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关于此项目
线性分子式:
(CF3SO3)3Yb · xH2O
化学文摘社编号:
分子量:
620.25 (anhydrous basis)
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12161600
MDL number:
composition
Degree of hydration, 1-2 , Yb, 25-28% (approx.)
reaction suitability
core: ytterbium, reagent type: catalyst
SMILES string
[H]O[H].FC(F)(F)S(=O)(=O)O[Yb](OS(=O)(=O)C(F)(F)F)OS(=O)(=O)C(F)(F)F
InChI
1S/3CHF3O3S.H2O.Yb/c3*2-1(3,4)8(5,6)7;;/h3*(H,5,6,7);1H2;/q;;;;+3/p-3
InChI key
BUJKNFNMGRYZBV-UHFFFAOYSA-K
General description
已经通过原子力显微镜（AFM）研究了4-氨基苯硫酚和三氟甲磺酸镱(III)水合物膜的逐层组装。 据报道，双(恶唑啉基)-吡啶- 钪(III) 三氟甲磺酸盐络合物能够催化各种吲哚的对映选择性Friedel-Crafts加成反应。
Application
三氟甲磺酸镱(III)水合物（Yb(OTf)3）已被用作Lewis酸催化剂，用于以下研究：
- 通过Biginelli环缩合反应，合成二氢嘧啶（DHPM）衍生物monastrol。
- 酮与醛的交叉醛醇反应。
- 合成β-酮烯醇醚。
- 在新型立体选择性分子内Diels-Alder反应中，合成deoxypenostatin A。
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
8A - Combustible corrosive hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
商品
Friedel-Crafts acylation with Lewis acid catalysts forms monoacylated products via electrophilic aromatic substitution of arenes.
傅-克酰基化反应是一种芳烃与酰氯或酸酐使用强路易斯酸催化剂的反应。该反应通过亲电芳族取代进行，形成单酰化产物。
David A Evans et al.
Journal of the American Chemical Society, 129(32), 10029-10041 (2007-07-31)
The enantioselective Friedel-Crafts addition of a variety of indoles catalyzed by bis(oxazolinyl)pyridine-scandium(III) triflate complexes (Sc(III)-pybox) was accomplished utilizing a series of beta-substituted alpha,beta-unsaturated phosphonates and alpha,beta-unsaturated 2-acyl imidazoles. The acyl phosphonate products were efficiently transformed into esters and amides, whereas
Ytterbium triflate catalyzed synthesis of β-keto enol ethers.
Curini M, et al.
Tetrahedron Letters, 47(27), 4697-4700 (2006)
Ytterbium Trifluoromethanesulfonate Mediated Cross-Aldol Reaction between Ketones and Aldehydes.
Fukuzawa S-I, et al.
Bulletin of the Chemical Society of Japan, 67(8), 2227-2232 (1994)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 405329-5G | 04061833322987 |
| 405329-25G | 04061833424803 |