138181-82-5

Upstream product

• 20672-67-7 methyl 3,4,6-tri-O-benzyl-α-D-mannopyranoside 
• 53008-65-4 methyl 2,3,4-tri-O-benzyl-D-glucopyranoside 
• 793672-50-1 4-methylphenyl 3,4,6-tri-O-benzyl-1-thio-α-D-mannopyranoside 
• 354114-14-0 (3S,4R,5R,6R)-4,5-Bis-benzyloxy-6-benzyloxymethyl-2-phenylsulfanyl-tetrahydro-pyran-3-ol 
• 161664-79-5 methyl 2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl-(1→6)-2,3,4-tri-O-benzyl-α-D-glucopyranoside 

Relevant academic research and scientific papers

Stereodivergent Mannosylation Using 2- O-(ortho-Tosylamido)benzyl Group

We report a novel strategy for obtaining both anomers from a single mannosyl donor equipped with a C2-o-TsNHbenzyl ether (2-O-TAB) by switching reaction conditions. In particular, the formation of various β-mannosides was achieved with high selectivity by using a mannosyl phosphite in the presence of ZnI2.

Novel Glycosidation of - D -Altropyranosides

A new glycosidation of α-d-altropyranosides, in which the 2-hydroxy group is not protected, was developed. The reaction proceeds via a 1,2 -β oxirane, which is formed in situ without extra steps for exchanging the 1-methoxy group to a more reactive leaving group. The glycoside bond of α-d-altropyranoside was shown to be weaker compared with those of α-d-glucopyranoside and α-d-mannopyranoside.

A novel approach to the stereoselective synthesis of β-D-mannopyranosides

A non-covalent version of the intramolecular aglycon delivery methodology has been demonstrated for the stereoselective formation of β-D-mannopyranoside in the presence of lanthanide(III) triflate.

The synthesis of β-mannopyranosides by intramolecular aglycon delivery: scope and limitations of the exciting methodology

The synthesis of β-mannopyrosides by intramolecular aglycon delivery is shown to proceed with complete stereoselectivity in six separate cases.This strategy has been successfully applied to the synthesis of several disaccharides, including octyl 3,6-di-O-