(E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-one

Base Information

Chemical Name:(E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-one
CAS No.:205172-21-0
Molecular Formula:C₁₉H₃₆O₃Si
Molecular Weight:340.579
Hs Code.:

Synonyms:(E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-one

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Chemical Property of (E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-one

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Technology Process of (E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-one

There total 4 articles about (E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-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: 83.0%

: 205172-19-6
(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-2,2,6-trimethyl-1-((E)-3-trimethylsilanyloxy-but-1-enyl)-cyclohexanol

: 205172-21-0
(E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-one

Guidance literature:: With tripropylammonium fluorochromate (VI); In tetrahydrofuran; for 16h; Ambient temperature;
DOI:10.1021/np970517x

Reference yield:

: 60046-49-3
(6R)-levodione

: 205172-21-0
(E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-one

Guidance literature:: Multi-step reaction with 5 steps

1: 83 percent / H₂ / Raney-Ni (W₂-activity) / methanol / 1 h

2: 81.2 percent / aq. HCl (37percent) / CH₂Cl₂ / 1.17 h / Ambient temperature

3: 85.5 percent / imidazole / dimethylformamide / 1.5 h

4: 1.) tri-n-butylstannane, azobis(isobutyronitrile, 2.) n-BuLi / 1) 130 deg C, 16 h; 2) THF, hexane, -78 deg C, 90 min; 3) THF, hexane, -78 deg C, 2 h

5: 83 percent / pyridinium fluorochromate / tetrahydrofuran / 16 h / Ambient temperature

With 1H-imidazole; hydrogenchloride; n-butyllithium; 2,2'-azobis(isobutyronitrile); hydrogen; tri-n-butyl-tin hydride; tripropylammonium fluorochromate (VI); Raney-Ni (W₂-activity); In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/np970517x

Reference yield:

: 20548-02-1,55058-51-0,60686-81-9,60686-82-0,82977-53-5,90082-06-7,90129-05-8,99881-84-2,60046-50-6
(4R,6R)-4-hydroxy-2,2,6-trimethylcyclohexan-1-one

: 205172-21-0
(E)-4-[(1R,4R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-2,2,6-trimethyl-cyclohexyl]-but-3-en-2-one

Guidance literature:: Multi-step reaction with 4 steps

1: 81.2 percent / aq. HCl (37percent) / CH₂Cl₂ / 1.17 h / Ambient temperature

2: 85.5 percent / imidazole / dimethylformamide / 1.5 h

3: 1.) tri-n-butylstannane, azobis(isobutyronitrile, 2.) n-BuLi / 1) 130 deg C, 16 h; 2) THF, hexane, -78 deg C, 90 min; 3) THF, hexane, -78 deg C, 2 h

4: 83 percent / pyridinium fluorochromate / tetrahydrofuran / 16 h / Ambient temperature

With 1H-imidazole; hydrogenchloride; n-butyllithium; 2,2'-azobis(isobutyronitrile); tri-n-butyl-tin hydride; tripropylammonium fluorochromate (VI); In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/np970517x