Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 10343-06-3, C14H20O10. A document type is Article, introducing its new discovery., Formula: C14H20O10
SYNTHESIS OF GLYCOSYL PHOSPHATES FROM SUGAR ORTHO ESTERS: FORMATION OF BIS(2,3,4,6-TETRA-O-ACETYL-beta-D-GLUCOPYRANOSYL) PHOSPHATE, AND THE EFFECT OF SOLVENTS ON THE SYNTHESIS OF beta-D-GLUCOPYRANOSYL PHOSPHATE
Reaction of exo-3,4,6-tri-O-acetyl-1,2-O-(tert-butyl orthoacetyl)-alpha-D-glucopyranose with phosphoric acid and phosphorus pentaoxide in oxolane gave 2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl phosphate.Treatment of the reaction mixture with aqueous lithium hydroxide gave the expected beta-D-glucopyranosyl phosphate.However, neutralization with ammonium hydroxide gave exclusively the phosphoric diester, namely, bis(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl) phosphate.Formation of the diester was traced to the phosphorus pentaoxide in the initial reaction-mixture.A study of solvents showed that phosphorylation of the ortho ester proceeds rapidly in a variety of ethers and N,N-dimethylamides.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics