4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester

Base Information

Chemical Name:4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester
CAS No.:627461-35-2
Molecular Formula:C₄₇H₇₄O₄Si₂
Molecular Weight:759.273
Hs Code.:

4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester

Synonyms:4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester

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Chemical Property of 4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester

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Technology Process of 4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester

There total 6 articles about 4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl 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: 75.0%

: 627461-31-8
4-((1S,3aR,7aR)-7a-Methyl-4-oxo-octahydro-inden-1-ylethynyl)-benzoic acid methyl ester

: C₃₉H₆₃O₃PSi₂

: 627461-35-2
4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester

Guidance literature:: With n-butyllithium; In tetrahydrofuran; hexane; at -78 - -40 ℃;
DOI:10.1021/ol0351246

Reference yield:

: 17763-71-2
4-carbomethoxyphenyl triflate

: 627461-35-2
4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester

Guidance literature:: Multi-step reaction with 3 steps

1.1: 69 percent / Et₃N / PdCl₂(PPh₃)2 / dimethylformamide / 80 °C

2.1: HF / 2 h / 20 °C

2.2: 99 percent / pyridinium dichromate / CH₂Cl₂ / 4 h / 20 °C

3.1: 75 percent / n-BuLi / hexane; tetrahydrofuran / -78 - -40 °C

With n-butyllithium; hydrogen fluoride; triethylamine; bis-triphenylphosphine-palladium(II) chloride; In tetrahydrofuran; hexane; N,N-dimethyl-formamide; 1.1: Sonogashira coupling / 3.1: Wittig-Horner coupling;
DOI:10.1021/ol0351246

Reference yield:

: 140659-43-4
[1S-(1β,4β,7aβ)]-[1R-(3aα)]-octahydro-1-acetyl-4-[(tert-butyldimethylsilyl)oxy]-7a-methyl-1H-indene

: 627461-35-2
4-{(1S,3aS,7aS)-7a-Methyl-4-[2-[(3S,5R)-2-methylene-3,5-bis-triisopropylsilanyloxy-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-octahydro-inden-1-ylethynyl}-benzoic acid methyl ester

Guidance literature:: Multi-step reaction with 5 steps

1.1: 64 percent / LDA / tetrahydrofuran; hexane / 1 h / -78 - 20 °C

2.1: 98 percent / tetrahydrofuran; hexane / 1 h / 20 °C

3.1: 69 percent / Et₃N / PdCl₂(PPh₃)2 / dimethylformamide / 80 °C

4.1: HF / 2 h / 20 °C

4.2: 99 percent / pyridinium dichromate / CH₂Cl₂ / 4 h / 20 °C

5.1: 75 percent / n-BuLi / hexane; tetrahydrofuran / -78 - -40 °C

With n-butyllithium; hydrogen fluoride; triethylamine; lithium diisopropyl amide; bis-triphenylphosphine-palladium(II) chloride; In tetrahydrofuran; hexane; N,N-dimethyl-formamide; 3.1: Sonogashira coupling / 5.1: Wittig-Horner coupling;
DOI:10.1021/ol0351246