8.00653
Selenium dioxide
(sublimed) for synthesis
別名:
Selenium dioxide, Selenious anhydride, Selenium(IV) oxide
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この商品について
実験式（ヒル表記法）:
O2Se
CAS番号:
分子量:
110.96
MDL number:
UNSPSC Code:
12352303
EC Index Number:
231-194-7
NACRES:
NA.22
製品名
Selenium dioxide, (sublimed) for synthesis
SMILES string
[Se](=O)=O
InChI
1S/O2Se/c1-3-2
InChI key
JPJALAQPGMAKDF-UHFFFAOYSA-N
vapor pressure
<1 Pa ( 20 °C)
form
crystals
potency
68.1 mg/kg LD50, oral (Rat)
reaction suitability
reagent type: oxidant
pH
2 (20 °C, 10 g/L in H2O)
mp
340 °C
solubility
1353 g/L
density
3.95 g/cm3 at 20 °C
storage temp.
2-30°C
Quality Level
関連するカテゴリー
Analysis Note
Assay (iodometric): ≥ 98.0 %
Application
Selenium dioxide (SeO2) is mainly used to oxidize the activated carbon-bearing positions (α-methylene carbon atoms), particularly at allylic or propargylic sites. The more substituted end of the double bond undergoes oxidation.
It can also be used as an oxidizing reagent to synthesize:
It can also be used as an oxidizing reagent to synthesize:
- Amides by oxidative amidation of aldehydes with amines.
- Tropone from cycloheptatriene in the presence of potassium dihydrogen phosphate.
- Acetyltetrahydrobenzofurans by oxidation of conjugated dienones.
- 9-hydroxy-undec-10-ynoate from methyl undec-10-ynoate.
signalword
Danger
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2
保管分類
6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
試験成績書（COA）
製品のロット番号・バッチ番号を入力して、試験成績書（COA） を検索できます。ロット番号・バッチ番号は、製品ラベルに「Lot」または「Batch」に続いて記載されています。
Jacek Młochowski et al.
Molecules (Basel, Switzerland), 20(6), 10205-10243 (2015-06-06)
A variety of selenium compounds were proven to be useful reagents and catalysts for organic synthesis over the past several decades. The most interesting aspect, which emerged in recent years, concerns application of hydroperoxide/selenium(IV) oxide and hydroperoxide/organoselenium catalyst systems, as
Selenium (IV) Oxide
Hoekstra WJ, et al.
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2017)
M S Jie et al.
Lipids, 32(10), 1119-1123 (1997-11-14)
Reaction of methyl undec-10-ynoate (1) with selenium dioxide/tert-butyl hydroperoxide (TBHP) in aqueous dioxane gave methyl 9-oxo-undec-10-ynoate (2, 9%) and 9-hydroxy-undec-10-ynoate (3, 60%), while methyl octadec-9-ynoate (4) yielded mixtures of positional isomers of mono-keto (viz. methyl 8-oxo- and 11-oxo-octadec-9-ynoate, 5, 5%)
グローバルトレードアイテム番号
| カタログ番号 | GTIN |
|---|---|
| 8.00653.0250 | 04022536361420 |
| 8.00653.0050 | 04022536361413 |
| 8.00653.1000 | 04022536361437 |
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