3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one

Base Information

• Chemical Name: 3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one
• CAS No.: 203576-34-5
• Molecular Formula: C₂₃H₂₆BrNO₃
• Molecular Weight: 444.368
• Mol file: 203576-34-5.mol

Synonyms:3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one

Chemical Property of 3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one

There total 6 articles about 3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one 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-bromo-5-methoxybenzyl bromide (19614-12-1) + 1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-propan-1-one (203380-41-0) → 3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one (203576-34-5)

Guidance literature:

1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-propan-1-one; With lithium hexamethyldisilazane; In tetrahydrofuran; at -50 - -30 ℃; for 1.5h;

2-bromo-5-methoxybenzyl bromide; In tetrahydrofuran; at -35 - -10 ℃; for 2h;

Reference yield:

2-bromo-5-methoxybenzyl chloride (66192-25-4) + 1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-propan-1-one (203380-41-0) → 3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one (203576-34-5)

Guidance literature:

With lithium hexamethyldisilazane; In tetrahydrofuran; at 0 - 2 ℃; for 6.5h;

DOI:10.1021/jo991292t

Reference yield:

(1R,2S)-1-Amino-2-indanol (136030-00-7) → 3-(2-bromo-5-methoxy-phenyl)-1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-2-methyl-propan-1-one (203576-34-5)

Guidance literature:

Multi-step reaction with 3 steps

1: Et₃N / tetrahydrofuran / 45 - 50 °C

2: 141.1 g / methanesulfonic acid / tetrahydrofuran / 50 °C

3: lithium bis(trimethylsilyl)amide / tetrahydrofuran / 6.5 h / 0 - 2 °C

With methanesulfonic acid; triethylamine; lithium hexamethyldisilazane; In tetrahydrofuran; 1: Acylation / 2: Addition / 3: Alkylation;

DOI:10.1021/jo991292t

upstream raw materials:

2-bromo-5-methoxybenzyl chloride

1-(2,2-dimethyl-8,8a-dihydro-3aH-indeno[1,2-d]oxazol-3-yl)-propan-1-one

(1R,2S)-1-Amino-2-indanol

2-Bromo-5-methoxybenzyl alcohol

Downstream raw materials:

(S)-2-methyl-3-(2'-bromo-5'-methoxyphenyl)propionic acid

(2S)-(2'-bromo-5'-methoxyphenyl)-2-methylpropan-1-ol

(2S)-3-(2-bromo-5-methoxyphenyl)-1-(tert-butyldimethylsiloxy)-2-methylpropane

3-{2-[3-(tert-butyl-dimethyl-silanyloxy)-2-methyl-propyl]-4-methoxy-phenyl}-3-(6-butyl-3-formyl-pyridin-2-yl)-propionic acid tert-butyl ester