5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone

Base Information

Chemical Name:5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone
CAS No.:175882-99-2
Molecular Formula:C₂₁H₃₁BrO₃Si
Molecular Weight:439.465
Hs Code.:

Synonyms:5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone

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Chemical Property of 5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone

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Technology Process of 5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone

There total 5 articles about 5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone 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:

: 63272-66-2
4-bromo-2-hydroxy-5-methoxybenzaldehyde

: 175882-99-2
5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone

Guidance literature:: Multi-step reaction with 4 steps

1: imidazole, DMAP / CH₂Cl₂ / Ambient temperature

2: NaBH₄ / methanol / 0 °C

3: Ph₃P, Br₂ / dimethylformamide / 0 °C

4: 1.) LDA / 1.) THF, hexane, -78 deg C, 15 min, 2.) THF, hexane, RT, 3 h

With 1H-imidazole; dmap; sodium tetrahydroborate; bromine; triphenylphosphine; lithium diisopropyl amide; In methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jm950747d

Reference yield:

: 18162-48-6
tert-butyldimethylsilyl chloride

: 175882-99-2
5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone

Guidance literature:: Multi-step reaction with 4 steps

1: imidazole, DMAP / CH₂Cl₂ / Ambient temperature

2: NaBH₄ / methanol / 0 °C

3: Ph₃P, Br₂ / dimethylformamide / 0 °C

4: 1.) LDA / 1.) THF, hexane, -78 deg C, 15 min, 2.) THF, hexane, RT, 3 h

With 1H-imidazole; dmap; sodium tetrahydroborate; bromine; triphenylphosphine; lithium diisopropyl amide; In methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jm950747d

Reference yield:

: 156170-21-7
2-(tert-butyl)dimethylsilyloxy-4-bromo-5-methoxybenzaldehyde

: 175882-99-2
5-[4-Bromo-2-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-benzyl]-4,4-dimethyl-cyclopent-2-enone

Guidance literature:: Multi-step reaction with 3 steps

1: NaBH₄ / methanol / 0 °C

2: Ph₃P, Br₂ / dimethylformamide / 0 °C

3: 1.) LDA / 1.) THF, hexane, -78 deg C, 15 min, 2.) THF, hexane, RT, 3 h

With sodium tetrahydroborate; bromine; triphenylphosphine; lithium diisopropyl amide; In methanol; N,N-dimethyl-formamide;
DOI:10.1021/jm950747d