(3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one

Base Information

Chemical Name:(3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one
CAS No.:873949-45-2
Molecular Formula:C₂₈H₄₆O₄Si
Molecular Weight:474.756
Hs Code.:

Synonyms:(3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one

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Chemical Property of (3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one

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Technology Process of (3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one

There total 1 articles about (3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-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: 32.0%

: (-)-N'-((3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyldihydro-1'H-spiro[[1,3]dioxane-2,2'-pentalene]-5'(3'H,6'H,6a'H)-ylidene)-4-methylbenzenesulfonylhydrazide

: 17697-12-0
benzeneseleninic anhydride

: 873949-45-2
(3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one

: (-)-(3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyl-4'-(phenylselanyl)tetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one

Guidance literature:: In tetrahydrofuran; at 20 ℃; for 0.5h;
DOI:10.1021/ja0558037

Reference yield:

: 873949-45-2
(3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one

: (Z)-((1S,2R)-2-(2-phenylpropan-2-yl)cyclohexyl)-2-((3aS,4R,5R,6aS)-5-(tert-butyldimethylsilyloxy)-4-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)hexahydropentalen-2(1H)-ylidene)acetate

Guidance literature:: Multi-step reaction with 5 steps

1.1: 76 percent / NaBH₄ / ethanol / 4 h / 0 °C

2.1: 98 percent / 2,6-lutidine / CH₂Cl₂ / 0.5 h / -10 °C

3.1: 98 percent / aq. p-toluenesulfonic acid / acetone / 12 h / 20 °C

4.1: 1.04 g / imidazole / dimethylformamide / 14 h / 20 °C

5.1: n-BuLi / tetrahydrofuran; hexane / -78 - 20 °C

5.2: 1 percent / tetrahydrofuran; hexane / 144 h / -62 °C

With 1H-imidazole; 2,6-dimethylpyridine; sodium tetrahydroborate; n-butyllithium; toluene-4-sulfonic acid; In tetrahydrofuran; ethanol; hexane; dichloromethane; N,N-dimethyl-formamide; acetone; 5.2: Horner-Wadsworth-Emmons olefination;
DOI:10.1021/ja0558037

Reference yield:

: 873949-45-2
(3'aS,4'R,6'aR)-4'-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)-5,5-dimethyltetrahydro-1'H-spiro[[1,3]-dioxane-2,2'-pentalen]-5'(3'H)-one

: 873949-34-9
(+)-(E)-((1S,2R)-2-(2-phenylpropan-2-yl)cyclohexyl)-2-((3aS,4R,5R,6aS)-5-(tert-butyldimethylsilyloxy)-4-((3S,4S,E)-3-(tert-butyldimethylsilyloxy)-4-methyloct-1-en-6-ynyl)hexahydropentalen-2(1H)-ylidene)acetate

Guidance literature:: Multi-step reaction with 5 steps

1.1: 76 percent / NaBH₄ / ethanol / 4 h / 0 °C

2.1: 98 percent / 2,6-lutidine / CH₂Cl₂ / 0.5 h / -10 °C

3.1: 98 percent / aq. p-toluenesulfonic acid / acetone / 12 h / 20 °C

4.1: 1.04 g / imidazole / dimethylformamide / 14 h / 20 °C

5.1: n-BuLi / tetrahydrofuran; hexane / -78 - 20 °C

5.2: 78 percent / tetrahydrofuran; hexane / 144 h / -62 °C

With 1H-imidazole; 2,6-dimethylpyridine; sodium tetrahydroborate; n-butyllithium; toluene-4-sulfonic acid; In tetrahydrofuran; ethanol; hexane; dichloromethane; N,N-dimethyl-formamide; acetone; 5.2: Horner-Wadsworth-Emmons olefination;
DOI:10.1021/ja0558037