3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride

Base Information

• Chemical Name: 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride
• CAS No.: 350484-72-9
• Molecular Formula: C₇₀H₇₂O₁₂
• Molecular Weight: 1105.33
• Mol file: 350484-72-9.mol

Synonyms:3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride

Chemical Property of 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride

There total 4 articles about 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride 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: 64.0%

4-Pentenyl 3,4,5,7-tetra-O-benzyl-α-D-galacto-heptulopyranoside (350484-59-2) → 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride (350484-72-9)

Guidance literature:

With trimethylsilyl trifluoromethanesulfonate; 4 A molecular sieve; In various solvent(s); at 20 ℃; for 0.5h;

DOI:10.1002/1521-3765(20010401)7:7<1371::AID-CHEM1371>3.0.CO;2-J

Reference yield: 63.4%

3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose (388570-20-5) → 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride (350484-72-9) + 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-α-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride (350484-73-0)

Guidance literature:

With sodium triflate; toluene-4-sulfonic acid; In diethyl ether; for 3h; Heating;

DOI:10.1016/S0040-4020(01)00775-X

Reference yield: 62.0%

4-Pentenyl 3,4,5,7-tetra-O-benzyl-1-O-[3,4,5,7-tetra-O-benzyl-α-D-galacto-heptulopyranosyl]-α-D-galacto-heptulopyranoside (350484-63-8) → 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-β-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride (350484-72-9) + 3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose 3',4',5',7'-tetra-O-benzyl-α-D-galacto-hept-2'-ulopyranose 1,2':2,1'-dianhydride (350484-73-0)

Guidance literature:

4-Pentenyl 3,4,5,7-tetra-O-benzyl-1-O-[3,4,5,7-tetra-O-benzyl-α-D-galacto-heptulopyranosyl]-α-D-galacto-heptulopyranoside; With N-iodo-succinimide; 4 A molecular sieve; In dichloromethane; for 0.0833333h;

With trimethylsilyl trifluoromethanesulfonate; In dichloromethane; at 0 ℃; for 1h; Further stages.;

DOI:10.1002/1521-3765(20010401)7:7<1371::AID-CHEM1371>3.0.CO;2-J

upstream raw materials:

4-Pentenyl 3,4,5,7-tetra-O-benzyl-α-D-galacto-heptulopyranoside

4-Pentenyl 3,4,5,7-tetra-O-benzyl-1-O-[3,4,5,7-tetra-O-benzyl-α-D-galacto-heptulopyranosyl]-α-D-galacto-heptulopyranoside

3,4,5,7-tetra-O-benzyl-α-D-galacto-hept-2-ulopyranose

(3R,4S,5S,6R)-3,4,5-tris(benzyloxy)-6-[(benzyloxy)methyl]tetrahydro-2H-pyran-2-one