469041
三氟甲磺酸铪 (Ⅳ) 水合物
别名:
Hf(OTf)4, 三氟甲烷磺酸铪(IV)
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关于此项目
线性分子式:
(CF3SO3)4Hf
化学文摘社编号:
分子量:
774.77 (anhydrous basis)
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12161600
MDL number:
InChI
1S/4CHF3O3S.Hf/c4*2-1(3,4)8(5,6)7;/h4*(H,5,6,7);/q;;;;+4/p-4
SMILES string
FC(F)(F)S(=O)(=O)O[Hf](OS(=O)(=O)C(F)(F)F)(OS(=O)(=O)C(F)(F)F)OS(=O)(=O)C(F)(F)F
InChI key
BQYMOILRPDTPPJ-UHFFFAOYSA-J
reaction suitability
core: hafnium, reagent type: catalyst
mp
>350 °C (lit.)
Application
用于催化：
- 苯乙炔的均相甲氧基羰基化和加氢羧化反应
- 亚甲基半缩醛的直接Friedel-Crafts反应
- 路易斯酸性条件下的氨甲基化反应
- Prins型环化反应
- 乳酸直接缩聚
- 阳离子苄基化反应
- 羰基化合物的化学选择性硫缩醛化和反硫代缩醛化
用于邻硝基甲苯一硝基化的可回收利用的优良催化剂。
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Waller, F.J. et al.
Tetrahedron Letters, 39, 1641-1641 (1998)
Hafnium trifluoromethanesulfonate (Hf (OTf)4) as an efficient catalyst in the fries rearrangement and direct acylation of phenol and naphthol derivatives.
Kobayashi S, et al.
Tetrahedron Letters, 37(12), 2053-2056 (1996)
Norio Sakai et al.
The Journal of organic chemistry, 68(2), 483-488 (2003-01-18)
The copper(II) triflate- and hafnium(IV) triflate-catalyzed aminomethylation of indole (2) with an N-silyl-N,O-acetal 1 containing a trichloromethyl group provides the primary amine derivative (3a) in modest yield. When 1 equiv of trimethylchlorosilane (TMSCl) was added to the reaction mixture, the
商品
Quantum dots (QDs): Semiconductor nanoparticles with diverse applications including displays, lighting, and biomedical imaging.
Fries重排反应是一类重要的有机人名反应，它涉及在催化剂存在下加热时将酚酯转化成邻位或对位酰基酚。
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