Qianhucoumarin E

Base Information

• Chemical Name: Qianhucoumarin E
• CAS No.: 156041-02-0
• Molecular Formula: C₁₉H₁₈O₆
• Molecular Weight: 342.348
• Mol file: 156041-02-0.mol

Synonyms:2-Butenoicacid, 2-methyl-, 9,10-dihydro-8,8-dimethyl-2,10-dioxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-ylester, [R-(E)]-; 2H,8H-Benzo[1,2-b:3,4-b']dipyran, 2-butenoic acid deriv.;Qianhucoumarin E

Chemical Property of Qianhucoumarin E

Chemical Property:

• PSA: 82.81000
• LogP: 3.02470

Purity/Quality:

Analysis control,HPLC≥98% ^*data from raw suppliers

QianhucoumarinE ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Qianhucoumarin E

There total 1 articles about Qianhucoumarin E 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:

2-methylbut-(2Z)-enoic acid (9R,10R)-10-hydroxy-8,8-dimethyl-9,10-dihydro-2H,8H-benzo[1,2-b:3,4-b']dipyran-2-one-9-yl ester (20098-05-9,29049-07-8,56650-15-8,84579-96-4,97274-82-3,97275-03-1,131235-36-4,97274-80-1) → (3'S)-3'-angeloyl-4'-oxo-khellactone (156041-02-0)

Guidance literature:

With manganese(IV) oxide; In chloroform; for 4h; Ambient temperature;

DOI:10.1016/S0031-9422(00)82365-1

upstream raw materials:

2-methylbut-(2Z)-enoic acid (9R,10R)-10-hydroxy-8,8-dimethyl-9,10-dihydro-2H,8H-benzo[1,2-b:3,4-b']dipyran-2-one-9-yl ester

Refernces