(αE)-α-[3-Hydroxy-4-phenyl-5-oxofuran-2(5H)-ylidene]benzeneacetic acid

Base Information

• Chemical Name: (αE)-α-[3-Hydroxy-4-phenyl-5-oxofuran-2(5H)-ylidene]benzeneacetic acid
• CAS No.: 26548-70-9
• Molecular Formula: C18H12 O5
• Molecular Weight: 308.29
• Mol file: 26548-70-9.mol

Synonyms:2,4-Hexadienedioicacid, 3,4-dihydroxy-2,5-diphenyl-, g-lactone (7CI); Benzeneacetic acid, a-(3-hydroxy-5-oxo-4-phenyl-2(5H)-furanylidene)-, (E)-;Pulvinic acid (6CI); D2(5H),a-Furanacetic acid,3-hydroxy-5-oxo-a,4-diphenyl-(8CI); Pulvic acid

Chemical Property of (αE)-α-[3-Hydroxy-4-phenyl-5-oxofuran-2(5H)-ylidene]benzeneacetic acid

Chemical Property:

• Vapor Pressure: 1.1E-12mmHg at 25°C
• Melting Point: 212-213 °C
• Boiling Point: 544.4°C at 760 mmHg
• PKA: 1.03±0.41(Predicted)
• Flash Point: 203.9°C
• PSA: 83.83000
• Density: 1.475g/cm³
• LogP: 3.00840

Purity/Quality:

99% ^*data from raw suppliers

PULVINIC ACID 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of (αE)-α-[3-Hydroxy-4-phenyl-5-oxofuran-2(5H)-ylidene]benzeneacetic acid

There total 21 articles about (αE)-α-[3-Hydroxy-4-phenyl-5-oxofuran-2(5H)-ylidene]benzeneacetic acid 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: 95.0%

Pulvinic acid lacton (6273-79-6) → (E)-5-(α-carboxybenzylidene)-4-hydroxy-3-phenylfuran-2(5H)-one (26548-70-9)

Guidance literature:

With water; In acetone; at 70 ℃; for 0.25h;

DOI:10.1080/14786410802682536

Reference yield: 95.0%

vulpic acid (521-52-8,73622-57-8) → (E)-5-(α-carboxybenzylidene)-4-hydroxy-3-phenylfuran-2(5H)-one (26548-70-9)

Guidance literature:

With sodium hydroxide; for 1h; Heating;

DOI:10.1021/jo048403v

Reference yield: 76.0%

(E)-4-(α-t-butoxycarbonylbenzylidene)-2-phenyltetronic acid (93796-40-8) → (E)-5-(α-carboxybenzylidene)-4-hydroxy-3-phenylfuran-2(5H)-one (26548-70-9)

Guidance literature:

With trifluoroacetic acid; for 5h; Ambient temperature;

upstream raw materials:

Pulvinic acid lacton

(E)-4-(α-t-butoxycarbonylbenzylidene)-2-phenyltetronic acid

vulpic acid

(1-methoxy-2-phenylvinyloxy)trimethylsilane