(3R*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene

Base Information

• Chemical Name: (3R*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene
• CAS No.: 122437-21-2
• Molecular Formula: C₁₅H₂₄
• Molecular Weight: 204.356
• Mol file: 122437-21-2.mol

Synonyms:

Chemical Property of (3R*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (3R*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene

There total 17 articles about (3R*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene 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: 19.0%

(5R*,6S*,7S*)-6,7,11,11-tetramethyldispiro<3.0.4.2>undecan-6-ol (122437-20-1,136655-32-8,136655-33-9) → (±)-modhephene (76739-64-5) + (3R*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene (122437-21-2,122518-24-5)

Guidance literature:

With toluene-4-sulfonic acid; In benzene; at 70 ℃; for 0.333333h;

DOI:10.1016/0040-4020(95)00486-R

Reference yield:

(5R*,6S*,7S*)-6,7,11,11-tetramethyldispiro<3.0.4.2>undecan-6-ol (122437-20-1,136655-32-8,136655-33-9) → (+/-)-isocomene (71629-00-0) + (3S*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene (122437-21-2,122518-24-5) + (3R*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene (122437-21-2,122518-24-5)

Guidance literature:

With toluene-4-sulfonic acid; In benzene; at 70 ℃; for 22h; Title compound not separated from byproducts;

DOI:10.1016/S0040-4039(00)80803-5

Reference yield:

(5R*,6S*,7S*)-6,7,11,11-tetramethyldispiro<3.0.4.2>undecan-6-ol (122437-20-1,136655-32-8,136655-33-9) → (+/-)-isocomene (71629-00-0) + (3S*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene (122437-21-2,122518-24-5) + (3R*,3aR*,5aR*,8aR*)-3,3a,5,5a-tetramethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopentapentalene (122437-21-2,122518-24-5)

Guidance literature:

With toluene-4-sulfonic acid; In benzene; at 70 ℃; for 22h; Title compound not separated from byproducts;

DOI:10.1016/S0040-4039(00)80803-5

upstream raw materials:

(5R*,6S*,7S*)-6,7,11,11-tetramethyldispiro<3.0.4.2>undecan-6-ol