Abstract

It has been found that 4-nitrophenylglyoxal reacts with N -alkoxy- N’ -arylureas and N -alkoxy- N’ -alkylureas in acetic acid medium with the selective formation of the diastereomers of the 3-alkoxy-1,5-diaryl-4,5-dihydroxyimidazolidin-2-ones and 3-alkoxy-1-alkyl-5-aryl-4,5-dihydroxyimidazolidin-2-ones with sic -orientation of OH-groups. The X-ray structural analysis of 3-propyloxy-4 S ,5 S -dihydroxy-1-methyl-5-(4-nitrophenyl)imidazolidin-2-one and of 3- n -butyloxy-4 S ,5 S -dihydroxy-1-(4-methylphenyl)-5-(4-nitrophenyl)imidazolidin-2-one has demonstrated the structural parameters of these compounds.

Highlights

  • Arylglyoxals are widely used in syntheses of heterocycles as syntones.[1,2,3,4,5,6] But the study of the arylglyoxals interaction with N-hydroxyurea[7,8,9] and its derivatives[8,10] has started recently and needs to be continued

  • The structure of compounds 2a,b has been proved by XRD study.[7,9]

  • Interaction of 4-methylphenylgyoxal hydrate and 4- and 10aB), which are distinguished by the pyramidality methoxyphenylglyoxal hydrate with N-hydroxyurea in aqueous degree of the acyclic amide nitrogen atom

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Summary

INTRODUCTION

Arylglyoxals are widely used in syntheses of heterocycles as syntones.[1,2,3,4,5,6] But the study of the arylglyoxals interaction with N-hydroxyurea[7,8,9] and its derivatives[8,10] has started recently and needs to be continued. Arylglyoxal’s interaction with N-hydroxyurea in acetic acid (Ref. 8)

OOHH NN OOHH
HH HH
HH N
NN OBnn PPh N
RESULTS AND DISCUSSION
OH NN
Arr AArr
OORR N
Conclusions
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