puag-haad

Base Information

• Chemical Name: puag-haad
• CAS No.: 4721-07-7
• Molecular Formula: C14H12O4
• Molecular Weight: 244.247
• Mol file: 4721-07-7.mol

Synonyms:2',3,4',5-Stilbenetetrol;3,5,2',4'-Tetrahydroxystilbene;2,3',4,5'-Stilbenetetrol(6CI,7CI,8CI);2,4,3',5'-Tetrahydroxystilbene;

Chemical Property of puag-haad

Chemical Property:

• Vapor Pressure: 1.37E-11mmHg at 25°C
• Melting Point: 190-192℃
• Refractive Index: 1.8
• Boiling Point: 523.759 °C at 760 mmHg
• PKA: 9.29±0.10(Predicted)
• Flash Point: 260.818 °C
• PSA: 80.92000
• Density: 1.468 g/cm³
• LogP: 2.67940

Purity/Quality:

99%, ^*data from raw suppliers

4-(3,5-Dihydroxystyryl)benzene-1,3-diol 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of puag-haad

There total 30 articles about puag-haad 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: 86.0%

7-hydroxy-3-(3’,5’-dihydroxyphenyl)coumarin → oxyresveratrol (4721-07-7,29700-22-9)

Guidance literature:

With potassium hydroxide; In ethylene glycol; at 180 ℃; for 1h;

Reference yield: 76.0%

3-(3,5-dihydroxyphenyl)-7-hydroxycoumarin → oxyresveratrol (4721-07-7,29700-22-9)

Guidance literature:

With potassium hydroxide; In water; dimethyl sulfoxide; at 160 ℃; for 2h; Temperature; Reagent/catalyst;

Reference yield: 66.1%

(E)-3,5,2',4'-tetramethoxystilbene (20578-92-1,24144-92-1,143207-87-8) → oxyresveratrol (4721-07-7,29700-22-9)

Guidance literature:

With aluminum (III) chloride; In 5,5-dimethyl-1,3-cyclohexadiene; at 20 ℃; for 8h; Time;

upstream raw materials:

2,4-bis(trimethylsiloxy) benzaldehyde

(3,5-dihydroxybenzyl)triphenylphosphonium bromide

(E)-3,5,2',4'-tetramethoxystilbene

2,3′,4,5′-tetramethoxystilbene

Downstream raw materials:

dihydrooxyresveratrol

5-[(E)-2-(4-hydroxy-2-methoxyphenyl)ethenyl]benzene-1,3-diol

(E)-3,5,2',4'-tetramethoxystilbene

cis-oxyresveratrol

Refernces

• 1、 -. "Preparation method of resveratrol compound". Paragraph 0061; 0062. . Retrieved 2019/07/16.
• 2、 Maafi, Mounir,Al-Qarni, Mohammed Ahmed. "Φ-order spectrophotokinetic characterisation and quantification of trans-cis oxyresveratrol reactivity, photodegradation and actinometry". . p. 64 - 71. Retrieved 2017/07/11.