2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl ester

Base Information

• Chemical Name: 2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl ester
• CAS No.: 198469-35-1
• Molecular Formula: C₂₉H₄₆O₁₅
• Molecular Weight: 634.675
• Mol file: 198469-35-1.mol

Synonyms:2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl ester

Chemical Property of 2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl ester

There total 4 articles about 2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl 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: 80.0%

2,2-Dimethyl-propionic acid (3aR,5R,7R,7aS)-5-hydroxy-2,2-dimethyl-7-[(2R,3R,4S,5S,6R)-3,4,5-triacetoxy-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-2-yloxy]-hexahydro-benzo[1,3]dioxol-5-ylmethyl ester → 2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl ester (198469-35-1)

Guidance literature:

With acetic acid; at 80 ℃; for 3h;

DOI:10.1016/S0960-894X(97)10077-4

Reference yield:

3,4-isopropylidenequinide (130474-38-3) → 2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl ester (198469-35-1)

Guidance literature:

Multi-step reaction with 4 steps

1: 98 percent / LiBH₄ / 16 h / Ambient temperature

2: 1.) Bu₂SnO / 1.) 100 deg C, 16 h, 2.) rt, 30 min

3: 79 percent / AgOTf, tetramethylurea / 3 h / -78 °C

4: 80 percent / aq. AcOH / 3 h / 80 °C

With lithium borohydride; silver trifluoromethanesulfonate; di(n-butyl)tin oxide; acetic acid; tetramethylurea;

DOI:10.1016/S0960-894X(97)10077-4

Reference yield:

(3aS,4R,6R,7aR)-6-Hydroxymethyl-2,2-dimethyl-hexahydro-benzo[1,3]dioxole-4,6-diol (101917-46-8) → 2,2-Dimethyl-propionic acid (2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-[(1R,2R,3R,5S)-5-(2,2-dimethyl-propionyloxymethyl)-2,3,5-trihydroxy-cyclohexyloxy]-tetrahydro-pyran-2-ylmethyl ester (198469-35-1)

Guidance literature:

Multi-step reaction with 3 steps

1: 1.) Bu₂SnO / 1.) 100 deg C, 16 h, 2.) rt, 30 min

2: 79 percent / AgOTf, tetramethylurea / 3 h / -78 °C

3: 80 percent / aq. AcOH / 3 h / 80 °C

With silver trifluoromethanesulfonate; di(n-butyl)tin oxide; acetic acid; tetramethylurea;

DOI:10.1016/S0960-894X(97)10077-4

upstream raw materials:

3,4-isopropylidenequinide

(3aS,4R,6R,7aR)-6-Hydroxymethyl-2,2-dimethyl-hexahydro-benzo[1,3]dioxole-4,6-diol

2,2-Dimethyl-propionic acid (3aR,5R,7R,7aS)-5,7-dihydroxy-2,2-dimethyl-hexahydro-benzo[1,3]dioxol-5-ylmethyl ester

Downstream raw materials:

C₅₆H₇₄O₁₉