3β-(acetyloxy)-11α,12α-epoxy-13-hydroxyursan-28-oic acid γ-lactone

Base Information

• Chemical Name: 3β-(acetyloxy)-11α,12α-epoxy-13-hydroxyursan-28-oic acid γ-lactone
• CAS No.: 74048-33-2
• Molecular Formula: C₃₂H₄₈O₅
• Molecular Weight: 512.73
• Mol file: 74048-33-2.mol

Synonyms:3β-(acetyloxy)-11α,12α-epoxy-13-hydroxyursan-28-oic acid γ-lactone

Chemical Property of 3β-(acetyloxy)-11α,12α-epoxy-13-hydroxyursan-28-oic acid γ-lactone

Chemical Property:

Purity/Quality:

Safty Information:

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MSDS Files:

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Technology Process of 3β-(acetyloxy)-11α,12α-epoxy-13-hydroxyursan-28-oic acid γ-lactone

There total 2 articles about 3β-(acetyloxy)-11α,12α-epoxy-13-hydroxyursan-28-oic acid γ-lactone 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:

3β-(acetyloxy)-11α,12α-epoxy-14α-hydroxyurs-28-oic acid δ-lactone (160911-62-6) → (3β)-3-acetoxy-urs-12-en-28-carboxylic acid (915-79-7,7372-30-7,94482-46-9,105452-47-9,121470-75-5) + 3β-(acetyloxy)-11α,12α-epoxy-13-hydroxyursan-28-oic acid γ-lactone (74048-33-2)

Guidance literature:

With acetic acid; at 105 - 110 ℃; for 2h;

DOI:10.1016/S0040-4020(01)89285-1

Reference yield:

acetylmethyl ursolic acid (990-89-6,1261-37-6,19870-68-9,74984-69-3,94482-49-2) → 3β-acetoxy-11α,12α-epoxy-urs-13β,28-olide (74048-33-2,116261-49-5) + (1S,2R,4aS,6aS,6bR,10S,12aS,12bR,14bR)-10-Acetoxy-1,2,6a,6b,9,9,12a-heptamethyl-13-oxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid (35959-01-4,71623-71-7) + (1S,2R,4aS,6aS,6bR,10S,12aS,12bR,14bR)-10-Acetoxy-1,2,6a,6b,9,9,12a-heptamethyl-13-oxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid methyl ester (22425-72-5) + C33H50O6 (129199-19-5)

Guidance literature:

With dihydrogen peroxide; acetic acid; for 33h; Further byproducts given; Heating;

DOI:10.1016/S0040-4020(01)81525-8

upstream raw materials:

acetylmethyl ursolic acid

3β-(acetyloxy)-11α,12α-epoxy-14α-hydroxyurs-28-oic acid δ-lactone