(1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane

Base Information

• Chemical Name: (1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane
• CAS No.: 131691-35-5
• Molecular Formula: C₂₀H₄₂OSi₂
• Molecular Weight: 354.724
• Mol file: 131691-35-5.mol

Synonyms:(1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane

Chemical Property of (1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane

There total 4 articles about (1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane 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: 39.0%

<(methoxydimethylsilyl)(trimethylsilyl)methyl>lithium (120086-03-5) + (2S,5R)-2-[((R)-2'-tert-butyldimethylsilyloxy)-1'-methylethyl]-5-methylcyclohexan-1-one (131691-33-3) → (1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane (131691-35-5)

Guidance literature:

In pentane;

DOI:10.1039/c39900001487

Reference yield:

(1R,3R,4S,8R)-9-hydroxy-p-menthol (13834-07-6) → (1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane (131691-35-5)

Guidance literature:

Multi-step reaction with 3 steps

1: 4-N,N-dimethylaminopyridine / CH₂Cl₂

2: 1.) (COCl)2, DMSO, 2.) Et₃N / Swern oxidation

3: 39 percent / pentane

With dmap; oxalyl dichloride; dimethyl sulfoxide; triethylamine; In dichloromethane; pentane;

DOI:10.1039/c39900001487

Reference yield:

(1R,2S,5R)-2-[((R)-2'-tert-butyldimethylsilyloxy)-1'-methylethyl]-5-methylcyclohexan-1-ol (131691-32-2) → (1S,4R)-1-[(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexane (131691-35-5)

Guidance literature:

Multi-step reaction with 2 steps

1: 1.) (COCl)2, DMSO, 2.) Et₃N / Swern oxidation

2: 39 percent / pentane

With oxalyl dichloride; dimethyl sulfoxide; triethylamine; In pentane;

DOI:10.1039/c39900001487

upstream raw materials:

<(methoxydimethylsilyl)(trimethylsilyl)methyl>lithium

(2S,5R)-2-[((R)-2'-tert-butyldimethylsilyloxy)-1'-methylethyl]-5-methylcyclohexan-1-one

(1R,3R,4S,8R)-9-hydroxy-p-menthol

(1R,2S,5R)-2-[((R)-2'-tert-butyldimethylsilyloxy)-1'-methylethyl]-5-methylcyclohexan-1-ol

Downstream raw materials:

5R-methyl-2S-(2'R-propionyl)-1(E/Z)-trimethylsilylmethylenecyclohexane

(R)-2-{(1S,4R)-4-Methyl-2-[1-trimethylsilanyl-meth-(E)-ylidene]-cyclohexyl}-propan-1-ol