(3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran

Base Information

• Chemical Name: (3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran
• CAS No.: 189324-22-9
• Molecular Formula: C₃₂H₃₆O₇
• Molecular Weight: 532.634
• Mol file: 189324-22-9.mol

Synonyms:(3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran

Chemical Property of (3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran

There total 3 articles about (3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran 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:

3,4,6-tri-O-acetyl-1,2-O-(allyloxyethylidene)-β-D-mannopyranose (55864-95-4,136944-74-6) → (3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran (189324-22-9)

Guidance literature:

Multi-step reaction with 2 steps

1: NH₃ / methanol

2: NaH

With ammonia; sodium hydride; In methanol; 1: Deacetylation / 2: Etherification;

DOI:10.1080/07328309708006524

Reference yield:

acetobromomannose (13242-53-0) → (3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran (189324-22-9)

Guidance literature:

Multi-step reaction with 3 steps

1: 86 percent / 2,6-dimethylpyridine

2: NH₃ / methanol

3: NaH

With 2,6-dimethylpyridine; ammonia; sodium hydride; In methanol; 1: Condensation / 2: Deacetylation / 3: Etherification;

DOI:10.1080/07328309708006524

Reference yield:

benzyl chloride (100-44-7) + 1,2-O-(Allyloxyethyliden)-β-D-mannopyranose (136944-92-8) → (3aS,5R,6R,7S,7aS)-2-Allyloxy-6,7-bis-benzyloxy-5-benzyloxymethyl-2-methyl-tetrahydro-[1,3]dioxolo[4,5-b]pyran (189324-22-9)

Guidance literature:

With sodium hydride;

DOI:10.1080/07328309708006524

upstream raw materials:

benzyl chloride

1,2-O-(Allyloxyethyliden)-β-D-mannopyranose

3,4,6-tri-O-acetyl-1,2-O-(allyloxyethylidene)-β-D-mannopyranose

acetobromomannose

Downstream raw materials:

1-O-allyl-2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranoside

allyl (2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1->2)-3,4,6-tri-O-benzyl-α-D-mannopyranoside

allyl 2-O-acetyl-3,4,6-tri-O-benzoyl-α-D-mannopyranosyl-(1->2)-3,4,6-tri-O-benzoyl-α-D-mannopyranosyl-(1->3)-2-O-acetyl-α-D-mannopyranoside

allyl 2-O-acetyl-3,4,6-tri-O-benzoyl-α-D-mannopyranosyl-(1->2)-3,4,6-tri-O-benzoyl-α-D-mannopyranosyl-(1->3)-4,6-O-benzylidene-α-D-mannopyranoside