261246
钪
dendritic pieces, purified by distillation, 99.9% trace rare earth metals basis
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关于此项目
经验公式（希尔记法）:
Sc
化学文摘社编号:
分子量:
44.96
UNSPSC Code:
12352300
PubChem Substance ID:
EC Number:
231-129-2
MDL number:
InChI key
SIXSYDAISGFNSX-UHFFFAOYSA-N
InChI
1S/Sc
SMILES string
[Sc]
assay
99.9% trace rare earth metals basis
form
dendritic pieces
purified by
distillation
resistivity
50.5 μΩ-cm, 0°C
bp
2836 °C (lit.)
mp
1540 °C (lit.)
density
2.99 g/mL at 25 °C (lit.)
Application
用于不常见簇合物 Sc19Br28Z4（Z = Mn、Fe、Ru 或 Os）的固态合成。这些簇合物由于其结构和磁特性而倍受关注。
存储类别
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
法规信息
新产品
此项目有
Nadine V Hanhan et al.
Organic letters, 14(9), 2218-2221 (2012-04-18)
The scandium(III)-catalyzed enantioselective Hosomi-Sakurai allylation of isatins with various substituted allylic silanes is described. A catalyst loading as low as 0.05 mol % is utilized at room temperature to afford the 3-allyl-3-hydroxy-2-oxindoles in excellent yields and enantioselectivity up to 99%
Marek Pruszyński et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 70(6), 974-979 (2012-04-03)
The positron-emitting radionuclide (44)Sc with a half-life of 3.97 h and a β(+) branching of 94.3% is of potential interest for clinical PET. As so far it is available from a (44)Ti/(44)Sc generator in Mainz, where long-lived (44)Ti decays to
Vincent Tran et al.
Organic letters, 14(23), 6100-6103 (2012-11-23)
Treatment of ynol ether-tethered dialkyl acetals with catalytic quantities of scandium triflate in CH(3)CN gives rise to five-, six-, and seven-membered alkoxycycloalkene carboxylates in good to excellent yields. Tri- and tetrasubstituted carbocyclic and heterocyclic alkenes may be formed by this
Wei Li et al.
Angewandte Chemie (International ed. in English), 51(34), 8644-8647 (2012-07-24)
Asymmetric expansion: A catalytic asymmetric ring-expansion reaction of the title compounds occurs in the presence of a Sc(OTf)(3) catalyst bearing an N,N'-dioxide-based ligand. Highly functionalized 2-quinolone derivatives containing a chiral C4-quaternary stereocenter were obtained in high yields and high levels
Andrea Olmos et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(16), 4894-4901 (2012-03-15)
This study demonstrates the first zeolite-catalyzed synthesis of piperidine derivatives, including peptidomimetics and indoloquinolizidine alkaloids. The approach developed utilizes a highly effective one-pot reaction cascade, through imine formation and imino-Diels-Alder reactions, promoted by scandium-loaded zeolites as a heterogeneous catalyst. The
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