2H-Pyran-2,6(3H)-dione

Base Information

• Chemical Name: 2H-Pyran-2,6(3H)-dione
• CAS No.: 5926-95-4
• Molecular Formula: C5H4O3
• Molecular Weight: 112.085
• Mol file: 5926-95-4.mol

Synonyms:Pentendisaeure-anhydrid;pentenedioic acid-anhydride;dihydro-pyrane-2,6-dione;Glutaconic anhydride;2H-Pyran-2,6(3H)-dione;Glutaconsaeureanhydrid;dihydro-pyran-2,6-dione;

Chemical Property of 2H-Pyran-2,6(3H)-dione

Chemical Property:

• Boiling Point: 250.3±19.0 °C(Predicted)
• PSA: 43.37000
• Density: 1.337±0.06 g/cm3(Predicted)
• LogP: 0.01610

Purity/Quality:

97% ^*data from raw suppliers

GLUTACONIC ANHYDRIDE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2H-Pyran-2,6(3H)-dione

There total 9 articles about 2H-Pyran-2,6(3H)-dione which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 69.0%

glutaconic acid (628-48-8) → Glutaconsaeureanhydrid (5926-95-4)

Guidance literature:

With acetic anhydride; for 0.416667h; Heating;

DOI:10.1039/P19810000146

Reference yield:

glutaconic acid (1724-02-3) → Glutaconsaeureanhydrid (5926-95-4)

Guidance literature:

With acetyl chloride;

Reference yield:

(Z)-glutaconic acid (505-36-2) → Glutaconsaeureanhydrid (5926-95-4) + glutaconic acid (628-48-8)

Guidance literature:

at 145 - 150 ℃;

upstream raw materials:

diethyl 3-hydroxypentanedioate

(Z)-glutaconic acid

glutaconic acid

acetic anhydride

Downstream raw materials:

4-phenylcarbamoyl-crotonic acid

5-oxo-5-phenyl-pent-2ξ-enoic acid

(Z)-glutaconic acid

6-Methoxy-2H-pyran-2-on