Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester

Base Information

• Chemical Name: Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester
• CAS No.: 866932-08-3
• Molecular Formula: C₃₅H₄₆O₅S₃Si
• Molecular Weight: 671.031
• Mol file: 866932-08-3.mol

Synonyms:Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester

Chemical Property of Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester

There total 4 articles about Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl 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: 93.0%

Acetic acid (1R,2S,4R)-2-(tert-butyl-diphenyl-silanyloxy)-5-iodo-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester (866932-05-0) + sodium benzenesulfonate (873-55-2) → Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester (866932-08-3)

Guidance literature:

In N,N-dimethyl-formamide; at 20 ℃;

DOI:10.1016/j.tetlet.2005.07.167

Reference yield:

Acetic acid (1R,2S,4R)-1-acetyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-5-oxo-pentyl ester (866932-01-6) → Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester (866932-08-3)

Guidance literature:

Multi-step reaction with 4 steps

1: 82 percent / KBH(OAc)3 / benzene / 20 °C

2: 78 percent / BF₃*Et₂O / CH₂Cl₂ / 0 °C

3: 81 percent / I₂; imidazole; PPh₃ / toluene / 0 °C

4: 93 percent / dimethylformamide / 20 °C

With 1H-imidazole; potassium triacetoxyborohydride; boron trifluoride diethyl etherate; iodine; triphenylphosphine; In dichloromethane; N,N-dimethyl-formamide; toluene; benzene;

DOI:10.1016/j.tetlet.2005.07.167

Reference yield:

Acetic acid (1R,2S,4R)-1-acetyl-2-(tert-butyl-diphenyl-silanyloxy)-5-hydroxy-4-methyl-pentyl ester (866932-02-7) → Acetic acid (1R,2S,4R)-5-benzenesulfonyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester (866932-08-3)

Guidance literature:

Multi-step reaction with 3 steps

1: 78 percent / BF₃*Et₂O / CH₂Cl₂ / 0 °C

2: 81 percent / I₂; imidazole; PPh₃ / toluene / 0 °C

3: 93 percent / dimethylformamide / 20 °C

With 1H-imidazole; boron trifluoride diethyl etherate; iodine; triphenylphosphine; In dichloromethane; N,N-dimethyl-formamide; toluene;

DOI:10.1016/j.tetlet.2005.07.167

upstream raw materials:

Acetic acid (1R,2S,4R)-2-(tert-butyl-diphenyl-silanyloxy)-5-iodo-4-methyl-1-(2-methyl-[1,3]dithian-2-yl)-pentyl ester

sodium benzenesulfonate

Acetic acid (1R,2S,4R)-1-acetyl-2-(tert-butyl-diphenyl-silanyloxy)-4-methyl-5-oxo-pentyl ester

Acetic acid (1R,2S,4R)-1-acetyl-2-(tert-butyl-diphenyl-silanyloxy)-5-hydroxy-4-methyl-pentyl ester

Downstream raw materials:

(2R,6S,8S,9S,10S)-3-Benzenesulfonyl-8,9-bis-(tert-butyl-dimethyl-silanyloxy)-11-(tert-butyl-diphenyl-silanyloxy)-1-[(4S,5R)-2,2-dimethyl-5-(2-methyl-[1,3]dithian-2-yl)-[1,3]dioxolan-4-yl]-2,6,10-trimethyl-undecan-4-one

(2R,6R,8S,9S,10S)-3-Benzenesulfonyl-8,9-bis-(tert-butyl-dimethyl-silanyloxy)-11-(tert-butyl-diphenyl-silanyloxy)-1-[(4S,5R)-2,2-dimethyl-5-(2-methyl-[1,3]dithian-2-yl)-[1,3]dioxolan-4-yl]-2,6,10-trimethyl-undecan-4-ol

(2R,6S,8S,9S,10S)-8,9-Bis-(tert-butyl-dimethyl-silanyloxy)-11-(tert-butyl-diphenyl-silanyloxy)-1-[(4S,5R)-2,2-dimethyl-5-(2-methyl-[1,3]dithian-2-yl)-[1,3]dioxolan-4-yl]-2,6,10-trimethyl-undecan-4-one

(4S,5R)-4-((R)-3-Benzenesulfonyl-2-methyl-propyl)-2,2-dimethyl-5-(2-methyl-[1,3]dithian-2-yl)-[1,3]dioxolane