138902-21-3

Basic information

• Product Name: 1,6-Anhydro-2,3-di-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-β-D-glucopyranose
• CAS NO: 138902-21-3
• Molecular Weight: 865.033
• Mol File: 138902-21-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 1,6-Anhydro-2,3-di-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-β-D-glucopyranose(CAS DataBase Reference)
• NIST Chemistry Reference: 1,6-Anhydro-2,3-di-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-β-D-glucopyranose(138902-21-3)
• EPA Substance Registry System: 1,6-Anhydro-2,3-di-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-β-D-glucopyranose(138902-21-3)

Safety Data

• Hazardous Substances Data: 138902-21-3(Hazardous Substances Data)

Upstream product

• 4132-28-9 2,3,4,6-tetra-O-benzyl-D-mannopyranose 
• 104976-44-5 1,6-Anhydro-2,3-di-O-benzyl-4-O-<(trifluormethyl)sulfonyl>-β-D-galactopyranose 

Downstream Products

• 2672-63-1 (2R,3S,4S,5S,6R)-2-((1R,2S,3R,4R,5R)-3,4-Dihydroxy-6,8-dioxa-bicyclo[3.2.1]oct-2-yloxy)-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol 

Relevant articles and documents

EFFECT OF PROTECTING GROUPS AND SOLVENTS IN ANOMERIC O-ALKYLATION OF MANNOPYRANOSE

Anomeric O-alkylation of mannopyranoses with various protecting groups was investigated using mannose derivatives and 2,3-O-isopropylidene-1-O-trifluoromethanesulfonyl-D-glycerol (1) as alkylating agent.Generally, in polar solvents higher α/β ratios were obtained than in nonpolar solvents.Sterically demanding protecting groups at the 6-O-position and polar solvents led to higher yields.Reactivity differences were explained by different complex formation.Based on these results mannopyranosyl-α(1-4)glucopyranosides 26 and 27 were synthesized using mannose derivatives 5 and 6 having a 6-O-(p-methoxyphenyl)diphenylmethyl group and galactosyl trifluoromethanesulfonate 24 or nonafluorobutanesulfonate (nonaflate) 25, respectively, as alkylating agents.