(2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one

Base Information

• Chemical Name: (2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one
• CAS No.: 1270942-31-8
• Molecular Formula: C₃₈H₄₁NO₆
• Molecular Weight: 607.747
• Mol file: 1270942-31-8.mol

Synonyms:(2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one

Chemical Property of (2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one

There total 2 articles about (2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one 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: 60.0%

(E)-methyl 4-((2S,3R,4S,5S,6R)-2-azido-3,4,5-tris(benzyloxy)-6-(benzyloxymethyl)tetrahydro-2H-pyran-2-yl)but-2-enoate (1270942-28-3) → (2R,3S,4S,5R,6R)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one (1270942-32-9) + (2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one (1270942-31-8)

Guidance literature:

With 5% Pd-CaCO3; hydrogen; In methanol; at 20 ℃; under 760.051 Torr; optical yield given as %de;

DOI:10.1039/c0ob00555j

Reference yield:

(2S,3R,4S,5S,6R)-2-allyl-2-azido-3,4,5-tris(benzyloxy)-6-(benzyloxymethyl)tetrahydro-2H-pyran (1259515-58-6) → (2R,3S,4S,5R,6R)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one (1270942-32-9) + (2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-1-oxa-7-azaspiro[5.5]undecan-8-one (1270942-31-8)

Guidance literature:

Multi-step reaction with 2 steps

1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / 2 h / 40 °C / Inert atmosphere

2: 5% Pd-CaCO3; hydrogen / methanol / 20 °C / 760.05 Torr

With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; 5% Pd-CaCO3; hydrogen; In methanol; dichloromethane;

DOI:10.1039/c0ob00555j

upstream raw materials:

(2S,3R,4S,5S,6R)-2-allyl-2-azido-3,4,5-tris(benzyloxy)-6-(benzyloxymethyl)tetrahydro-2H-pyran

(E)-methyl 4-((2S,3R,4S,5S,6R)-2-azido-3,4,5-tris(benzyloxy)-6-(benzyloxymethyl)tetrahydro-2H-pyran-2-yl)but-2-enoate