(4aS,5R,6S,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic acid methyl ester

Base Information

• Chemical Name: (4aS,5R,6S,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic acid methyl ester
• CAS No.: 99463-53-3
• Molecular Formula: C₃₁H₄₂O₉Si
• Molecular Weight: 586.755

Synonyms:

Chemical Property of (4aS,5R,6S,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

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• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (4aS,5R,6S,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic acid methyl ester

There total 35 articles about (4aS,5R,6S,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic 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: 97.0%

(2S,3S)-2-((4S,5R)-4-Benzo[1,3]dioxol-5-yl-2,2-di-tert-butyl-[1,3,2]dioxasilinan-5-yl)-3-hydroxy-3-(3,4,5-trimethoxy-phenyl)-propionic acid methyl ester (99463-49-7,99528-94-6,99528-95-7,99528-96-8,136031-36-2) → (4aS,5S,6S,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic acid methyl ester (99463-53-3,99529-46-1,108815-12-9,136031-37-3)

Guidance literature:

With Burgess Reagent; In benzene; at 50 ℃; for 0.5h;

DOI:10.1016/S0040-4020(01)87656-0

Reference yield: 83.0%

(2S,3R)-2-((4S,5R)-4-Benzo[1,3]dioxol-5-yl-2,2-di-tert-butyl-[1,3,2]dioxasilinan-5-yl)-3-hydroxy-3-(3,4,5-trimethoxy-phenyl)-propionic acid methyl ester (99463-49-7,99528-94-6,99528-95-7,99528-96-8,136031-36-2) → (4aS,5S,6R,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic acid methyl ester (99463-53-3,99529-46-1,108815-12-9,136031-37-3)

Guidance literature:

With methanesulfonyl chloride; triethylamine; In dichloromethane; at -10 ℃; for 30h;

DOI:10.1016/S0040-4020(01)87656-0

Reference yield:

(2R,3R)-2-((4S,5R)-4-Benzo[1,3]dioxol-5-yl-2,2-di-tert-butyl-[1,3,2]dioxasilinan-5-yl)-3-hydroxy-3-(3,4,5-trimethoxy-phenyl)-propionic acid methyl ester (99463-49-7,99528-94-6,99528-95-7,99528-96-8,136031-36-2) → 5-Benzo[1,3]dioxol-5-yl-4-(di-tert-butyl-hydroxy-silanyloxymethyl)-2-(3,4,5-trimethoxy-phenyl)-tetrahydro-furan-3-carboxylic acid methyl ester (99463-52-2) + (4aS,5R,6S,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic acid methyl ester (99463-53-3,99529-46-1,108815-12-9,136031-37-3)

Guidance literature:

With Burgess Reagent; In benzene; at 50 ℃; for 0.5h;

DOI:10.1016/S0040-4020(01)87656-0

upstream raw materials:

diazomethane

(4aS,5S,6S,11bR)-2,2-Di-tert-butyl-6-(3,4,5-trimethoxy-phenyl)-4a,5,6,11b-tetrahydro-4H-1,3,8,10-tetraoxa-2-sila-cyclopenta[b]phenanthrene-5-carboxylic acid

(2S,3S)-2-((4S,5R)-4-Benzo[1,3]dioxol-5-yl-2,2-di-tert-butyl-[1,3,2]dioxasilinan-5-yl)-3-hydroxy-3-(3,4,5-trimethoxy-phenyl)-propionic acid methyl ester

3,4,5-trimethoxy-benzaldehyde

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