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Upstream product

• 1384982-09-5 ((2S,3R,4S,5S,6R)-3-acetoxy-4,5-bis(benzyloxy)-2-methoxy-2-oxido-1,2-oxaphosphinan-6yl)methyl acetate 
• 1384982-08-4 (2S,3S,4S,5S,6R)-4,5-bis(benzyloxy)-6-((benzyloxy)methyl)-2-methoxy-2-oxido-1,2-oxaphosphinan-3yl acetate 

Relevant academic research and scientific papers

Alternative synthesis of P-chiral phosphonite-borane complexes: Application to the synthesis of phostone-phostone dimers

An improved strategy for the synthesis of P-chiral gluco- and manno-phosphonite-borane complexes is described on the basis of the addition of diethyl phosphonite-borane to a glucal-derived aldehyde, followed by a cyclization coupled with an ethyl/methyl exchange. This direct P(III) strategy facilitates the obtention of various P-chiral phosphonite-boranes, of which further coupling reactions are described leading to the selective synthesis of two phostone dimers.