tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane

Base Information

• Chemical Name: tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane
• CAS No.: 123493-54-9
• Molecular Formula: C₃₉H₆₆O₇Si
• Molecular Weight: 675.034
• Mol file: 123493-54-9.mol

Synonyms:tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane

Chemical Property of tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane

There total 9 articles about tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane 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: 51.0%

1-methoxy-4-(methoxymethyl)benzene (1515-81-7) + {(1R,2R)-2-[(4R,5S,6S)-6-{(1R,3R)-3-Benzyloxy-1-methyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-butyl}-2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-1-ethyl-propoxy}-tert-butyl-dimethyl-silane (114137-90-5,114182-41-1) → tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane (123493-54-9) + (2R,4R)-4-[(2R,4S,5S,6R)-6-[(1R,2R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-butyl]-2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-2-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-pentan-2-ol (114137-91-6)

Guidance literature:

With MS 3 Angstroem; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In dichloromethane; at 20 ℃; for 0.333333h;

DOI:10.1007/BF00958059

Reference yield: 12.0%

1-methoxy-4-(methoxymethyl)benzene (1515-81-7) + (2R,4R,5S,6S,7R,8R,9R)-9-(tert-Butyl-dimethyl-silanyloxy)-4,6,8-trimethyl-2-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-undecane-2,5,7-triol (123493-53-8) → tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane (123493-54-9) + (2R,4R)-4-[(2R,4S,5S,6R)-6-[(1R,2R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-butyl]-2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-2-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-pentan-2-ol (114137-91-6)

Guidance literature:

With MS 3 Angstroem; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In dichloromethane; at 20 ℃; for 0.333333h;

DOI:10.1007/BF00958059

Reference yield:

t-butyldimethylsiyl triflate (69739-34-0) → tert-Butyl-((1R,2R)-1-ethyl-2-{(3R,5R,6S,7S,8R)-1-(4-methoxy-phenyl)-3,5,7-trimethyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-2,9,10-trioxa-bicyclo[4.3.1]dec-8-yl}-propoxy)-dimethyl-silane (123493-54-9)

Guidance literature:

Multi-step reaction with 7 steps

1: 83 percent / Et₃N / CH₂Cl₂ / 0.33 h / -78 °C

2: 77 percent / 1,3-propanedithiol, BF₃*Et₂O / CH₂Cl₂ / 1 h / -78 °C

3: 84 percent / NaIO₄ / tetrahydrofuran; H₂O / 0.17 h

4: 1) LiN(SiMe₃)2 / 1) THF, -60 deg C, 3 h 2) THF, - 75 deg C, 15 min

5: 86 percent / LiAlH₄ / diethyl ether / 1 h / -50 - 20 °C

6: 43 percent / Na/NH₃ / diethyl ether / 1 h / -78 °C

7: 51 percent / DDQ, MS 3 Angstroem / CH₂Cl₂ / 0.33 h / 20 °C

With 1.3-propanedithiol; sodium periodate; lithium aluminium tetrahydride; MS 3 Angstroem; boron trifluoride diethyl etherate; ammonia; sodium; triethylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; lithium hexamethyldisilazane; In tetrahydrofuran; diethyl ether; dichloromethane; water;

DOI:10.1007/BF00958059

upstream raw materials:

1-methoxy-4-(methoxymethyl)benzene

{(1R,2R)-2-[(4R,5S,6S)-6-{(1R,3R)-3-Benzyloxy-1-methyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-butyl}-2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-1-ethyl-propoxy}-tert-butyl-dimethyl-silane

(2R,4R,5S,6S,7R,8R,9R)-9-(tert-Butyl-dimethyl-silanyloxy)-4,6,8-trimethyl-2-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-undecane-2,5,7-triol

t-butyldimethylsiyl triflate