Toluene diisocyanate manufacturer Knowledge Tetraphenylcyclopentadienone

Tetraphenylcyclopentadienone

Ttraphenylcyclopentadienone structural formula

Structural formula

Business number 051N
Molecular formula C29H20O
Molecular weight 384.48
label

None

Numbering system

CAS number:479-33-4

MDL number:MFCD00001407

EINECS number:207-530-3

RTECS number:None

BRN number:683115

PubChem number:24900046

Physical property data

1. Character:Black purple leaf-like crystals


2. Density (g/ m3,25/4): Undetermined


3. Relative vapor density (g/cm3 ,AIR=1): Undetermined


4. Melting point (ºC):217-220


5. Boiling point (ºC,Normal pressure): Undetermined


6. Boiling point (ºC,5.2kPa): Undetermined


7. Refractive index: Undetermined


8. Flash Point (ºC): Undetermined


9. Specific optical rotation (º): Undetermined


10. Autoignition point or ignition temperature (ºC): Undetermined


11. Vapor pressure (kPa,25ºC): Undetermined


12. Saturated vapor pressure (kPa,60ºC): Undetermined


13. Heat of combustion (KJ/mol): Undetermined


14. Critical temperature (ºC): Undetermined


15. Critical pressure (KPa): Undetermined


16. Oil and water (octanol/Log value of water) partition coefficient: Undetermined


17. Explosion limit (%,V/V): Undetermined


18. Lower explosion limit (%,V/V): Undetermined


19. Solubility: Undetermined

Toxicological data

None

Ecological data

None

Molecular structure data

1 Molar refractive index:120.15


2, Molar volumem 3/mol)320.5


3 Isotonic specific volume (90.2K):861.4


4 Surface tensiondyne/cm)52.1


5, Polarizability10-24cm3) 47.63

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 6.4

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 1

4. Number of rotatable chemical bonds: 4

5. Number of tautomers: none

6. Topological molecule polar surface area 17.1

7. Number of heavy atoms: 30

8. Surface charge: 0

9. Complexity: 613

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 0

13. Determine the number of chemical bond stereocenters: 0

14. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

Use and store according to specifications, no decomposition will occur, and avoid contact with oxides

Storage method

Save in a sealed manner and place it in a ventilated and dry place to avoid contact with other oxides.

Synthesis method

Under the catalysis of benzyltrimethylammonium hydroxide, benzilyl(C6H5CO)2 With dibenzyl ketone in triacetate( Ethylene glycol)Medium reaction.

Purpose

In DiersAlder reaction(Diels-Alder reaction)Used as diene reagent in the synthesis of polyphenyls Based bicyclic compounds.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/29747

author:

Previous article
Next article
Contact Us

Contact us

+86 - 152 2121 6908

Online consultation: QQ交谈

E-mail: sales@newtopchem.com

Working hours: Monday to Friday, 9:00-17:30, closed on holidays
Follow wechat
Scan wechat and follow us

Scan wechat and follow us

Follow Weibo
Back to top
Home
E-mail
Products
Search