4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester

Base Information

• Chemical Name: 4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester
• CAS No.: 106540-58-3
• Molecular Formula: C₂₇H₃₁BrO₄
• Molecular Weight: 499.445
• Mol file: 106540-58-3.mol

Synonyms:4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester

Chemical Property of 4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester

There total 2 articles about 4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester 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:

4-Bromo-benzoic acid (5S,5aR,9aS)-5,5a-dihydroxy-2-isopropyl-9,9-dimethyl-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester (95263-39-1) → 4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester (106540-58-3)

Guidance literature:

With dimethyl sulfoxide; In acetic anhydride; for 3h; Ambient temperature;

DOI:10.1016/S0040-4020(01)87451-2

Reference yield:

4-chlorobenzoyl chloride (586-75-4) → 4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester (106540-58-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 2.4 mg / 4-dimethylaminopyridine / pyridine / 48 h / 40 °C

2: 1.5 mg / DMSO / acetic anhydride / 3 h / Ambient temperature

With dmap; dimethyl sulfoxide; In pyridine; acetic anhydride;

DOI:10.1016/S0040-4020(01)87451-2

Reference yield:

4-Bromo-benzoic acid (5aR,9aS)-5a-hydroxy-2-isopropyl-9,9-dimethyl-5-oxo-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester (106540-58-3) → 4-Bromo-benzoic acid (5R,5aR,9aS)-5,5a-dihydroxy-2-isopropyl-9,9-dimethyl-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester (95263-40-4)

Guidance literature:

With sodium tetrahydroborate; In methanol; at 0 ℃; for 2h;

DOI:10.1016/S0040-4020(01)87451-2

upstream raw materials:

4-Bromo-benzoic acid (5S,5aR,9aS)-5,5a-dihydroxy-2-isopropyl-9,9-dimethyl-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester

4-chlorobenzoyl chloride

Downstream raw materials:

4-Bromo-benzoic acid (5R,5aR,9aS)-5,5a-dihydroxy-2-isopropyl-9,9-dimethyl-5a,6,7,8,9,9a,10,11-octahydro-5H-dibenzo[a,d]cyclohepten-3-yl ester

C₃₄H₃₆Br₂O₅