95970-69-7

Upstream product

• 67077-32-1 (2S,4aR,6S,6aR,13aS,13bS,15S,17aR,19S,19aR,26aS,26bS)-6,19-Dimethoxy-2,15-diphenyl-icosahydro-1,3,5,7,10,13,14,16,18,20,23,26-dodecaoxa-cyclooctadeca[1,2-a;10,11-a']dinaphthalene 
• 76-83-5 trityl chloride 
• 96038-95-8 (+)-Bis(methyl-2,3-didesoxy-α-D-galactopyranosido)<2,3-b:2',3'-k><1,4,7,10,13,16>hexacyclooctadecan 

Downstream Products

• 95970-70-0 (+)-6,6'-Bis-O-(triphenylmethyl)-4,4'-O-(3,6-dioxaoctano)<1,4,7,10,13,16>hexaoxacyclooctadecan> 

Relevant academic research and scientific papers

Cryptands with Structural Units of Galactose

Tetrahydroxybis(galactopyrano)-crown-6 2 does not reveal under basic conditions in the presence of oligoethylene glycol ditosylates any trans-annular etherification involving positions 6/6' or 4/4', respectively, instead the systems 4a and b with thee macrocycles are generated.After protection of the 6/6'-hydroxy groups a trans-annular reaction is possible.Thus, the chiral cryptands 6a and b are accessible.Complexing properties in the presence of ammonium ions have been studied for 6a.