(S)-2-[2-Bromo-3,4-dimethoxy-5-((S)-1,2,2-trimethyl-cyclopentyl)-phenyl]-4-tert-butyl-4,5-dihydro-oxazole

Base Information

Chemical Name:(S)-2-[2-Bromo-3,4-dimethoxy-5-((S)-1,2,2-trimethyl-cyclopentyl)-phenyl]-4-tert-butyl-4,5-dihydro-oxazole
CAS No.:223751-32-4
Molecular Formula:C₂₃H₃₄BrNO₃
Molecular Weight:452.432
Hs Code.:

Synonyms:(S)-2-[2-Bromo-3,4-dimethoxy-5-((S)-1,2,2-trimethyl-cyclopentyl)-phenyl]-4-tert-butyl-4,5-dihydro-oxazole

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Chemical Property of (S)-2-[2-Bromo-3,4-dimethoxy-5-((S)-1,2,2-trimethyl-cyclopentyl)-phenyl]-4-tert-butyl-4,5-dihydro-oxazole

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Technology Process of (S)-2-[2-Bromo-3,4-dimethoxy-5-((S)-1,2,2-trimethyl-cyclopentyl)-phenyl]-4-tert-butyl-4,5-dihydro-oxazole

There total 9 articles about (S)-2-[2-Bromo-3,4-dimethoxy-5-((S)-1,2,2-trimethyl-cyclopentyl)-phenyl]-4-tert-butyl-4,5-dihydro-oxazole 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:

: (R)-4-(2,3-Dimethoxy-5-methyl-phenyl)-4,5,5-trimethyl-cyclopent-2-enethione

: 223751-32-4
(S)-2-[2-Bromo-3,4-dimethoxy-5-((S)-1,2,2-trimethyl-cyclopentyl)-phenyl]-4-tert-butyl-4,5-dihydro-oxazole

Guidance literature:: Multi-step reaction with 7 steps

1: H₂ / Raney-Ni / ethanol

2: 100 percent / Br₂ / CH₂Cl₂ / 0.08 h

3: 84 percent / O₂, Co(OAc)2*4H₂O / butan-2-one; acetic acid / 4 h / 110 °C / 4137.18 Torr

4: oxalyl chloride, DMF / CH₂Cl₂ / 1 h

5: Et₃N / CH₂Cl₂ / 6 h

6: SOCl₂ / CH₂Cl₂ / 2 h / Ambient temperature

7: 20 percent K₂CO₃ / acetonitrile / 5 h / Heating

With thionyl chloride; oxalyl dichloride; hydrogen; bromine; oxygen; cobalt(II) acetate; potassium carbonate; triethylamine; N,N-dimethyl-formamide; nickel; In ethanol; dichloromethane; acetic acid; acetonitrile; butanone;
DOI:10.1021/ja984182x

Reference yield:

: 223751-39-1
(R)-4-(2,3-dimethoxy-5-methylphenyl)-4,5,5-trimethylcyclopent-2-enone

: 223751-32-4
(S)-2-[2-Bromo-3,4-dimethoxy-5-((S)-1,2,2-trimethyl-cyclopentyl)-phenyl]-4-tert-butyl-4,5-dihydro-oxazole

Guidance literature:: Multi-step reaction with 8 steps

1: Belleau's reagent / toluene / 0.5 h / Heating

2: H₂ / Raney-Ni / ethanol

3: 100 percent / Br₂ / CH₂Cl₂ / 0.08 h

4: 84 percent / O₂, Co(OAc)2*4H₂O / butan-2-one; acetic acid / 4 h / 110 °C / 4137.18 Torr

5: oxalyl chloride, DMF / CH₂Cl₂ / 1 h

6: Et₃N / CH₂Cl₂ / 6 h

7: SOCl₂ / CH₂Cl₂ / 2 h / Ambient temperature

8: 20 percent K₂CO₃ / acetonitrile / 5 h / Heating

With thionyl chloride; oxalyl dichloride; hydrogen; bromine; oxygen; cobalt(II) acetate; potassium carbonate; 2,4-(4-phenoxyphenyl)-1,3-dithia-2λ(5),4λ(5)-diphosphetane 2,4-disulfides; triethylamine; N,N-dimethyl-formamide; nickel; In ethanol; dichloromethane; acetic acid; toluene; acetonitrile; butanone;
DOI:10.1021/ja984182x