1,2-DI(2-PYRIDYL)ETHYLENE - Names and Identifiers
Name | 1,2-Bis(2-pyridyl)ethylene
|
Synonyms | 2,2'-VINYLENEDIPYRIDINE 1,2-Bis(2-pyridyl)ethene 1,2-DI(2-PYRIDYL)ETHYLENE 1,2-Di(2-pyridinyl)ethene 1,2-Di(2-pyridyl)ethylene Pyridine, 2,2'-vinylenedi- 1,2-Bis(2-pyridyl)ethylene 1,2-BIS(2-PYRIDYL)ETHYLENE 2,2'-ethene-1,2-diyldipyridine 2,2'-(E)-ethene-1,2-diyldipyridine 2-[(E)-2-(2-Pyridinyl)ethenyl]pyridine
|
CAS | 1437-15-6
|
EINECS | 215-866-7 |
InChI | InChI=1/C12H10N2/c1-3-9-13-11(5-1)7-8-12-6-2-4-10-14-12/h1-10H/b8-7+ |
1,2-DI(2-PYRIDYL)ETHYLENE - Physico-chemical Properties
Molecular Formula | C12H10N2
|
Molar Mass | 182.22 |
Density | 1.1485 (rough estimate) |
Melting Point | 118-119°C(lit.) |
Boling Point | 150-160°C2mm Hg(lit.) |
Flash Point | 118.9°C |
Solubility | soluble in Methanol |
Vapor Presure | 0.000114mmHg at 25°C |
Appearance | powder to crystal |
Color | White to Gray to Brown |
pKa | 4.53±0.10(Predicted) |
Storage Condition | RT, closed, dry |
Refractive Index | 1.6266 (estimate) |
1,2-DI(2-PYRIDYL)ETHYLENE - Risk and Safety
Hazard Symbols | Xi - Irritant
|
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin.
|
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39 - Wear suitable gloves and eye/face protection
|
WGK Germany | 3 |
1,2-DI(2-PYRIDYL)ETHYLENE - Introduction
1,2-bis (2-pyridyl)ethylene is an organic compound with the chemical formula C12H10N2. It is a colorless to pale yellow liquid with a special fragrance. The following is a description of its nature, use, preparation and safety information:
Nature:
1,2-bis (2-pyridyl)ethylene has an allyl structure, and the existence of double bonds makes it have certain reactivity. It is soluble in most organic solvents, such as ether, toluene and chloroform. It has a melting point of -50°C and a boiling point of 260°C.
Use:
1,2-bis (2-pyridyl)ethylene has a wide range of uses in chemical synthesis. It can be used as an intermediate in organic synthesis, for example, for the preparation of drugs, pesticides and dyes containing pyridine rings. It can also be used to prepare polymeric materials containing pyridine structures.
Method:
A commonly used method for preparing 1,2-bis (2-pyridyl)ethylene is to use the condensation reaction of pyridine and acetone. The specific step is to react pyridine and acetone under alkaline conditions, and dehydrate under appropriate conditions to finally obtain the target product. Of course, there are other synthetic methods for preparing such compounds.
Safety Information:
1,2-bis (2-pyridyl)ethylene is relatively safe for the human body and the environment under normal circumstances. It may be irritating to the eyes and skin at higher concentrations, so appropriate protective measures such as gloves and goggles should be worn during operation. At the same time, it should be used in a well-ventilated place and avoid contact with oxidants and strong acids to prevent dangerous reactions.
Last Update:2024-04-09 21:11:58