2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-pentyl ester

Base Information

• Chemical Name: 2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-pentyl ester
• CAS No.: 183959-12-8
• Molecular Formula: C₃₀H₄₂O₇
• Molecular Weight: 514.659
• Mol file: 183959-12-8.mol

Synonyms:2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-pentyl ester

Chemical Property of 2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-pentyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-pentyl ester

There total 4 articles about 2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-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%

pivaloyl chloride (3282-30-2) + 2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-4,5-dihydroxy-pentyl ester (183959-10-6) → 2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-pentyl ester (183959-12-8)

Guidance literature:

With pyridine; at 0 ℃; for 2h;

DOI:10.1016/0040-4020(96)00818-6

Reference yield:

pivaloyl chloride (3282-30-2) → 2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-pentyl ester (183959-12-8)

Guidance literature:

Multi-step reaction with 3 steps

1: 93 percent / pyridine / Ambient temperature

2: 63 percent / AD-mix-α, water / 2-methyl-propan-2-ol / 1.) ) deg C, 6 h, 2.) RT, overnight

3: 93 percent / pyridine / 2 h / 0 °C

With pyridine; AD-mix-α; water; In tert-butyl alcohol;

DOI:10.1016/0040-4020(96)00818-6

Reference yield:

(2R,3S)-1,3-O-dibenzyl-2-hydroxy-5-hexene (116444-15-6) → 2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-5-(2,2-dimethyl-propionyloxy)-4-hydroxy-pentyl ester (183959-12-8)

Guidance literature:

Multi-step reaction with 3 steps

1: 93 percent / pyridine / Ambient temperature

2: 63 percent / AD-mix-α, water / 2-methyl-propan-2-ol / 1.) ) deg C, 6 h, 2.) RT, overnight

3: 93 percent / pyridine / 2 h / 0 °C

With pyridine; AD-mix-α; water; In tert-butyl alcohol;

DOI:10.1016/0040-4020(96)00818-6

upstream raw materials:

pivaloyl chloride

2,2-Dimethyl-propionic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-4,5-dihydroxy-pentyl ester

(2R,3S)-1,3-O-dibenzyl-2-hydroxy-5-hexene

2,2-Dimethyl-propionic acid (1R,2S)-2-benzyloxy-1-benzyloxymethyl-pent-4-enyl ester

Downstream raw materials:

9-(4,6-di-O-benzyl-2,3-dideoxy-2-D-mannityl)guanine

(2R,4S,5R)-2-(6-Amino-purin-9-yl)-4,6-bis-benzyloxy-hexane-1,5-diol

2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester

2,2-Dimethyl-propionic acid (2R,4S,5R)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-2-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-hexyl ester