Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3S,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester

Base Information

Chemical Name:Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3S,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester
CAS No.:143884-25-7
Molecular Formula:C₃₅H₅₄O₅SSi
Molecular Weight:614.962
Hs Code.:

Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3S,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester

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Chemical Property of Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3S,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester

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Technology Process of Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3S,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester

There total 16 articles about Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3S,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester 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:

: 18162-48-6
tert-butyldimethylsilyl chloride

: 143884-25-7
Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3R,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: imidazole / dimethylformamide

2: O₃, pyridine / methanol; CH₂Cl₂ / -78 °C

3: NaBH₄ / methanol / 0 °C

4: pyridine / 5 °C

5: NaHCO₃ / ethanol / Heating

6: SeO₂-NMO / CH₂Cl₂; methanol / Heating

With pyridine; 1H-imidazole; sodium tetrahydroborate; selenium(IV) oxide; sodium hydrogencarbonate; ozone; 4-methylmorpholine N-oxide; In methanol; ethanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1248/cpb.40.1662

Reference yield:

: 18162-48-6
tert-butyldimethylsilyl chloride

: 143884-25-7
Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3S,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: imidazole / dimethylformamide

2: O₃, pyridine / methanol; CH₂Cl₂ / -78 °C

3: NaBH₄ / methanol / 0 °C

4: pyridine / 5 °C

5: NaHCO₃ / ethanol / Heating

6: SeO₂-NMO / CH₂Cl₂; methanol / Heating

With pyridine; 1H-imidazole; sodium tetrahydroborate; selenium(IV) oxide; sodium hydrogencarbonate; ozone; 4-methylmorpholine N-oxide; In methanol; ethanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1248/cpb.40.1662

Reference yield:

: 50-14-6,51744-66-2,61177-68-2,116559-84-3,137174-35-7
vitamin D₂

: 143884-25-7
Toluene-4-sulfonic acid (S)-2-{(R)-4-[2-[(3R,5R)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propyl ester

Guidance literature:: Multi-step reaction with 7 steps

1: SO₂ / 0.5 h / Heating

2: imidazole / dimethylformamide

3: O₃, pyridine / methanol; CH₂Cl₂ / -78 °C

4: NaBH₄ / methanol / 0 °C

5: pyridine / 5 °C

6: NaHCO₃ / ethanol / Heating

7: SeO₂-NMO / CH₂Cl₂; methanol / Heating

With pyridine; 1H-imidazole; sodium tetrahydroborate; selenium(IV) oxide; sulfur dioxide; sodium hydrogencarbonate; ozone; 4-methylmorpholine N-oxide; In methanol; ethanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1248/cpb.40.1662