67077-31-0

Upstream product

• 7460-82-4 diethylene glycol ditosylate 
• 3162-96-7 methyl-4,6-O-phenylmethylene-α-D-mannopyranoside 
• 64552-06-3 methyl 4,6-O-benzylidene-α-D-galactopyranoside 
• 3162-96-7 methyl 4,6-O-benzylidene-α-D-glucopyranoside 
• 91102-84-0 (+)-1,7-Bis(methyl-4,6-O-benzyliden-3-desoxy-α-D-mannopyranosido)-1,4,7-trioxaheptan 
• 91102-84-0 (+)-1,7-Bis(methyl-4,6-O-benzyliden-3-desoxy-α-D-galactopyranosido)-1,4,7-trioxaheptan 

Downstream Products

• 85687-23-6 bis(methyl-2,3-dideoxy-6-O-tosyl-α-D-glucopyranosido<2,3-b><3',2'-k>)-1,4,7,10,13,16-hexaoxacyclooctadecane 

Relevant academic research and scientific papers

Synthesis and complexation behavior of some crown ethers derived from D-hexopyranosides and D-mannitol towards racemic phenylglycine salts

Eleven crown ethers, nine of the type, one of the type and one of the type, incorporating a catechol, a resorcinol or a substituted catechol unit, were synthesized in good yields from D-hexopyranosides or D-mannitol ketals via a two-step method.These macrocycles and some of their 4-O-alky derivatives (in the case of the glucopyranosides) were then tested for chiral recognition towards the enantiomers of phenylglycine as its methyl ester salt.Monoplate partitioning experiments between deutero chloroform and deuterium oxide monitored by proton NMR showed that only three derivatives of D-mannitol (hosts 12, 14 and 15) manifested enantioselectivity at 273 K. - Keywords: crown ethers; hexopyranosides; D-mannitol; monoplate partitioning; enantioselectivity.

A Contribution to the Structural Assignment of Positional Isomers of Bis-galacto and Bis-manno Crown Ethers

A structural assignment to the positional isomers of bis-galacto 3/4 and bis-manno crown ethers 6/7 is not possible using spectroscopic data only.Crown ethers 3 and 6 with a 3/3' and 2/2'conjunction of the two sugar moieties are available rationally via the "half crowns" 11 and 13 and are thus identifiable.