Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) ester

Base Information

• Chemical Name: Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) ester
• CAS No.: 76700-79-3
• Molecular Formula: C₂₅H₄₂O₇SSi₂
• Molecular Weight: 542.841
• Mol file: 76700-79-3.mol

Synonyms:Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) ester

Chemical Property of Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) ester

There total 6 articles about Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) 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: 75.0%

(6aR,8R,9R,9aS)-2,2,4,4-tetraisopropyl-8-methoxytetrahydro-6H-furo[3,2- f][1,3,5,2,4]trioxadisilocin-9-ol (76700-76-0) + phenylcarbonochloridothioate (1005-56-7) → Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) ester (76700-79-3)

Guidance literature:

With dmap; In acetonitrile; for 16h; Ambient temperature;

DOI:10.1021/ja00350a052

Reference yield:

1,1,3,3-tetraisopropyldisiloxane (18043-71-5) → Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) ester (76700-79-3)

Guidance literature:

Multi-step reaction with 3 steps

1: 78 percent / Cl₂ / CCl₄ / 0.5 h

2: 80 percent / pyridine / 3 h / Ambient temperature

3: 75 percent / 4-N,N-dimethylaminopyridine / acetonitrile / 16 h / Ambient temperature

With pyridine; dmap; chlorine; In tetrachloromethane; acetonitrile;

DOI:10.1021/ja00350a052

Reference yield:

1,3-Dichloro-1,1,3,3-tetraisopropyldisiloxane (69304-37-6) → Thiocarbonic acid O-phenyl ester O-((2R,3R,3aR,9aR)-5,5,7,7-tetraisopropyl-2-methoxy-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl) ester (76700-79-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 80 percent / pyridine / 3 h / Ambient temperature

2: 75 percent / 4-N,N-dimethylaminopyridine / acetonitrile / 16 h / Ambient temperature

With pyridine; dmap; In acetonitrile;

DOI:10.1021/ja00350a052

upstream raw materials:

(6aR,8R,9R,9aS)-2,2,4,4-tetraisopropyl-8-methoxytetrahydro-6H-furo[3,2- f][1,3,5,2,4]trioxadisilocin-9-ol

phenylcarbonochloridothioate

diisopropylsilanol

1,1,3,3-tetraisopropyldisiloxane

Downstream raw materials:

1-O-methyl-β-2-deoxy-D-erythro-pentofuranose

1-O-methyl-2-deoxy-3,5-di-O-(p-toluoyl)-β-D-erythro-pentofuranose