Toluene diisocyanate manufacturer Knowledge 3-Chloro-2-methylaniline

3-Chloro-2-methylaniline

3-chloro-2-methylaniline structural formula

Structural formula

Business number 01Y6
Molecular formula C7H8ClN
Molecular weight 141
label

2-Chloro-6-aminotoluene,

3-Chloro-o-toluidine,

o-Methyl m-chloroaniline,

2-Amino-6-chlorotoluene,

3-Chloro-o-toluidine

Numbering system

CAS number:87-60-5

MDL number:MFCD00007766

EINECS number:201-756-6

RTECS number:XU4760000

BRN number:471697

PubChem number:24846547

Physical property data



1. Character: liquid, can be Water vapor evaporates and quickly turns brown in the air


2. Density (g/mL,25/4℃): 1.171


3. Relative vapor density (g/mL,air =1): Undetermined


4. Melting point (ºC): 2


5. Boiling point (ºC,Normal pressure): 245℃ (ºC,0.67kpa or 5 mmHg)


6. Boiling point (ºC,5.2kPa): 115-117℃ (ºC,1.33kpa)


7. Refractive index: 1.588-1.59


8. Flashpoint (ºC): 112.8


9. Specific optical rotation (º) : Undetermined


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


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


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


13. Burning heat (KJ/mol): Undetermined


14. Critical temperature (ºC): Undetermined


15. Critical pressure (KPa): Undetermined


16. Oil and water (octanol/Log value of the partition coefficient for water: undetermined


<SPAN style="mso-list: Ign��Number: 9

8. Surface charge: 0

9. Complexity: 94.9

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

None yet

Storage method

This product is sealed and stored in a cool, dry place.

Synthesis method

By O-nitrotoluene is obtained by chlorination and reduction. 1.Chlorinated in o-nitrotoluene , add 2% Iron acts as a catalyst in50-60℃ Pour in chlorine until the relative density of the reaction solution reaches1.27-1.2950℃) Until now, use 5% Hydrochloric acid washing, and then Wash with water, and finally adjust the pH with liquid alkalipH for7. Separate the water layer, evaporate the water, and conduct vacuum distillation to collect120-150℃() fraction, cool, crystallize and filter to obtain2-chlorine-6-Nitrotoluene. 2.Reduction Add hydrochloric acid and iron powder Stir and heat in the reaction pot until 90℃ , slowly add the melted2-Chlorine -6-Nitrotoluene, added , reflux reaction3h. Cool, add liquid alkali to adjustpH is8, steam distilled, get 3-Chloro-o-toluidine.


Purpose

Organic synthesis intermediates.

Add acid and iron powder to the reaction pot, stir and heat until 90℃, slowly add the melted2-Chlorine-6 –Nitrotoluene, addition completed, reflux reaction3h. Cool, add liquid alkali to adjustpH is8, steam distilled, get 3-Chloro-o-toluidine.


Purpose

Organic synthesis intermediates.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/28413

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