Polyether_Polyether Polyol Knowledge 1,2,4-trimethoxybenzene

1,2,4-trimethoxybenzene

1,2,4-trimethoxybenzene structural formula

Structural formula

Business number 03QK
Molecular formula C9H12O3
Molecular weight 168.19
label

Hydroxyhydroquinone trimethyl ether,

aromatic compounds

Numbering system

CAS number:135-77-3

MDL number:MFCD00008360

EINECS number:205-219-7

RTECS number:None

BRN number:2047579

PubChem number:24900410

Physical property data

None

Toxicological data

None

Ecological data

None

Molecular structure data


Molecular property data:


1 Molar refractive index46.28


2 Molar volume(m3/mol):161.4


3 Isotonic specific volume90.2K):377.2


4 Surface tension(3.0 dyne/cm):29.8


5 Polarizability0.5 10-24 cm3):18.35

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): None

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 3

4. Number of rotatable chemical bonds: 3

5. Number of tautomers: none

6. Topological molecule polar surface area 27.7

7. Number of heavy atoms: 12

8. Surface charge: 0

9. Complexity: 127

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

liquid. Boiling point 247℃, relative density 1.106, refractive index 1.5330, flash point >110℃

Storage method

None

Synthesis method

Oxidize vanillin with hydrogen peroxide, then hydrolyze, and methylate it with dimethyl sulfate; or use hydroquinone to oxidize it with sodium dichromate and sulfuric acid to generate terequinone, which is prepared with acetic anhydride. Acetylation yields 1,2,4-phloroglucinol triacetate, which is obtained by methylation with dimethyl sulfate.

Purpose

Intermediates of leucine.

1. Reference value for hydrophobic parameter calculation (XlogP): None

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 3

4. Number of rotatable chemical bonds: 3

5. Number of tautomers: none

6. Topological molecule polar surface area 27.7

7. Number of heavy atoms: 12

8. Surface charge: 0

9. Complexity: 127

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

liquid. Boiling point 247℃, relative density 1.106, refractive index 1.5330, flash point >110℃

Storage method

None

Synthesis method

Oxidize vanillin with hydrogen peroxide, then hydrolyze, and methylate it with dimethyl sulfate; or use hydroquinone to oxidize it with sodium dichromate and sulfuric acid to generate terequinone, which is prepared with acetic anhydride. Acetylation yields 1,2,4-phloroglucinol triacetate, which is obtained by methylation with dimethyl sulfate.

Purpose

Intermediates of leucine.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.polyether-factory.com/archives/17983

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