D 131

Base Information

• Chemical Name: D 131
• CAS No.: 652145-29-4
• Molecular Formula: C₃₅H₂₈N₂O₂
• Molecular Weight: 508.62
• Mol file: 652145-29-4.mol

Synonyms:3-{1,2,3,3a,4,8b-hexahydro-4-[4-(2,2-diphenylvinyl)phenyl]cyclopenta[b]indole-7-yl}-2-cyanoacrylic acid

Chemical Property of D 131

Chemical Property:

• Boiling Point: 690.6±55.0 °C(Predicted)
• PKA: 1.33±0.19(Predicted)
• Density: 1.262±0.06 g/cm3(Predicted)

Purity/Quality:

97% ^*data from raw suppliers

D 131 >98.0%(HPLC) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of D 131

There total 6 articles about D 131 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: 92.0%

cyanoacetic acid (372-09-8) + 1,2,3,3a,4,8b-hexahydro-4-[4-(2,2-diphenylethenyl)phenyl]cyclopenta[b]indole-7-carboxaldehyde (652145-27-2) → 3-{1,2,3,3a,4,8b-hexahydro-4-[4-(2,2-diphenylvinyl)phenyl]cyclopenta[b]indole-7-yl}-2-cyanoacrylic acid (652145-29-4)

Guidance literature:

With piperidine; In acetonitrile; Reflux; Inert atmosphere;

Reference yield:

2,3-dihydro-1H-cyclopentindole (2047-91-8) → 3-{1,2,3,3a,4,8b-hexahydro-4-[4-(2,2-diphenylvinyl)phenyl]cyclopenta[b]indole-7-yl}-2-cyanoacrylic acid (652145-29-4)

Guidance literature:

Multi-step reaction with 4 steps

1.1: sodium tetrahydroborate; acetic acid / 20 °C

2.1: tri-tert-butyl phosphine; potassium tert-butylate; palladium diacetate / 5,5-dimethyl-1,3-cyclohexadiene / 120 °C

3.1: trichlorophosphate / 10 °C

3.2: 20 °C

4.1: piperidine / acetonitrile / 120 °C / Reflux

With piperidine; sodium tetrahydroborate; tri-tert-butyl phosphine; potassium tert-butylate; palladium diacetate; acetic acid; trichlorophosphate; In 5,5-dimethyl-1,3-cyclohexadiene; acetonitrile;

DOI:10.1016/j.dyepig.2011.02.009

Reference yield:

1,2,3,3a,4,8b-hexahydro-4-[4-(2,2-diphenylethenyl)phenyl]cyclopent[b]indole (1118752-92-3) → 3-{1,2,3,3a,4,8b-hexahydro-4-[4-(2,2-diphenylvinyl)phenyl]cyclopenta[b]indole-7-yl}-2-cyanoacrylic acid (652145-29-4)

Guidance literature:

Multi-step reaction with 2 steps

1.1: trichlorophosphate / 10 °C

1.2: 20 °C

2.1: piperidine / acetonitrile / 120 °C / Reflux

With piperidine; trichlorophosphate; In acetonitrile;

DOI:10.1016/j.dyepig.2011.02.009

upstream raw materials:

1,2,3,3a,4,8b-hexahydro-4-[4-(2,2-diphenylethenyl)phenyl]cyclopent[b]indole

2,3-dihydro-1H-cyclopentindole

1,2,3,3a,4,8b-hexahydrocyclopent[b]indole

cyanoacetic acid