selenacyclopentadiene
SELENOPHENE
CAS: 288-05-1
Molecular Formula: C4H4Se
selenacyclopentadiene - Names and Identifiers
| Name | SELENOPHENE |
| Synonyms | selenofuran SELENOPHENE selenacyclopentadiene |
| CAS | 288-05-1 |
selenacyclopentadiene - Physico-chemical Properties
| Molecular Formula | C4H4Se |
| Molar Mass | 131.03 |
| Density | 1.423g/mLat 25°C(lit.) |
| Melting Point | −30°C(lit.) |
| Boling Point | 110-111°C(lit.) |
| Flash Point | 27°F |
| Appearance | liquid |
| Color | Colorless to Light yellow |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | n20/D 1.58(lit.) |
| Use | Use a structural unit of a conductive polyalkylselenophene. |
selenacyclopentadiene - Risk and Safety
| Risk Codes | R23/25 - Toxic by inhalation and if swallowed. R33 - Danger of cumulative effects R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S20/21 - S28 - After contact with skin, wash immediately with plenty of soap-suds. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 1993 3/PG 2 |
| WGK Germany | 3 |
| HS Code | 29349990 |
| Hazard Class | 3.1 |
| Packing Group | II |
selenacyclopentadiene - Monovalent tungsten-benzene-selenophenol-bridged carbonyl tungsten and synthesis method thereof
from Palm Bridge research
Application (patent) number:
CN200410059920.7
application date:
2004-06-22
Public/Announcement Number:
CN1594335B
Public/announcement date:
2010.06.09
applicant (patent):
Fujian Institute of Research on the structure of matter, Chinese Academy of Sciences
inventor:
Zhou Zhang Feng , Zhuang Botao , Wu Kechen
National and provincial code:
CN350102
Abstract:
monovalent tungsten-benzene-selenophenol-bridged carbonyl tungsten and its synthesis method, related to the chemical field, it is under the condition of absolute oxygen and absolute water, by W(CO)
Last Update：2024-01-02 23:10:35
selenacyclopentadiene - Synthesis of β-hydroxy selenide by the ring-opening reaction of epoxide with selenophenol catalyzed by zinc chloride
from VIP
Author:
Minghua Yang , Hongwei Yang , Zheng Yunfa , Zhu Chengjian
Abstract:
The synthesis of β-hydroxy selenide by the ring opening reaction of epoxide catalyzed by selenophenol at room temperature was studied. Through this simple, efficient and atom-economical reaction, several β-hydroxy selenides were synthesized with high yield and selectivity. The corresponding 1, 3-oxazol-2-one was synthesized from 3-(o-tolyloxy) -1, 2-epoxypropane epoxy compound by one-pot three-step reaction.
Key words:
zinc chloride selenophenol epoxy compound open-loop reaction regioselectivity 1,3-(oroxazole) oxazol-2-one
DOI:
10.3321/j.issn:0253-9837.2006.07.004
cited:
year:
2006
Last Update：2023-08-16 22:09:08
selenacyclopentadiene - Preparation and application of selenium-containing phenolic resin microspheres
from Palm Bridge research
patent type:
invention patent
Application (patent) number:
CN201810144682.1
application date:
20180212
Public/Announcement Number:
CN108250381A
Public/announcement date:
20180706
applicant (patent):
Soochow University
inventor:
Li Na , Qian Zhuangfei , Zhu Jian , pan to strong , Zhu Xiulin
National and provincial code:
CN320506
Abstract:
The invention relates to a preparation method of selenium-containing phenolic resin microspheres, comprising the following steps: dissolving hydroxyl selenium-containing carbon source and phenolic compound in an aqueous solution of alcohol, the selenium-containing phenolic resin microspheres were formed by polycondensation reaction with formaldehyde under the action of ammonia under ultrasonic condition at 1060 ℃. The invention also provides an application of the selenium-containing phenolic resin microspheres prepared by the above preparation method in adsorbing heavy metal ions in an aqueous phase. The invention utilizes the difference of the nucleation rates of the two carbon sources to prepare selenium-containing resin microspheres with controllable size, controllable selenium content and controllable selenium-containing position by using ultrasonic-induced polycondensation.
Last Update：2023-08-16 22:09:08
selenacyclopentadiene - Reference Information
| Use | Structural unit of conductive polyalkylselenophene. |
Last Update：2024-04-09 02:00:04
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