68124-14-1

Upstream product

• 81243-68-7 3,6-di-O-acetyl-4-O-(tetra-O-acetyl-β-D-galactopyranosyl)-2-deoxy-2-nitroso-α-D-glucopyranosyl chloride 
• 51450-24-9 hexa-O-acetyl-D-lactal 
• 108-24-7 acetic anhydride 
• 81243-69-8 benzyl 3,6-di-O-acetyl-4-O-(tetra-O-acetyl-β-D-galactopyranosyl)-2-deoxy-2-oximino-α-D-arabino-hexopyranoside 

Relevant academic research and scientific papers

Syntheses of derivatives of N-acetyl-D-lactosamine from D-lactal hexaacetate. Hexa-O-acetyl-2-deoxy-2-phthalimido-β-D-lactosyl chloride

Two reaction routes are presented for the preparation of hexa-O-acetyl-2-deoxy-2-phthalimido-β-D-lactosyl chloride (7) from lactal hexaacetate (1).One route involves, in the first stage, reaction of 1 with nitrosyl chloride and proceeds by way of benzyl 2-amino-2-deoxy-α-D-lactoside (4) as an intermediate.The other route, which is considered more efficient, involves reaction of 1 with ceric ammonium nitrate and sodium azide and involves the β-anomer (12) of 4 as an intermediate.The preparation of 7 is of interest as a reagent for the preparation of 2-amino-2-deoxy-β-D-lactosides.The procedures offer routes for the preparation of D-lactosamine.