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3 Polish Journal of Chemistry

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Oxidation of Benzylic Alcohols with I2/K2CO3/tert-butanol: Formation of Aldehydes or Dimeric Esters

Tumkevicius S., Navickas V., Dailide M.

Polish Journal of Chemistry

2006

Vol. 80, nr 8

1377-1383

Oxidation of a series of aromatic and heteroaromatic benzylic alcohols with molecular iodine in tert-butanol in the presence of potassium carbonate has been studied. Oxidation of most benzylic alcohols affords the corresponding aldehydes in reasonable yields. The reaction has been shown to be compatible with amino, formyl, methylthio groups and thiophene ring in the molecule. Oxidation of the electron-poor benzylic alcohols such as nitrobenzyl alcohols and (benzimidazol-2-yl)methanol results in the formation of the corresponding dimeric esters.

Synthesis of 5-(2-Hydroxyethyl)-1--thia-3,5,6,8-tetraaza- and 1,3,5,6,8-Pentaazaacenaphthylenes

Tumkevicius S., Sarakauskaite .

Polish Journal of Chemistry

2003

Vol. 77 / nr 10

1275-1279

Synthesis of 5-(2-hydroxyethyl) derivatives of 1-thia-3,5,6,8-tetraaza- and 1,3,5,6,8- pentazaacenaphthylenes from 4,6-dichloro-2-methylthiopyrimidine-5-carbonitrile via the corresponding thieno- and pyrrolo[2,3-d]pyrimidines is described.

Synthesis of Isoxazolo {3,4-d]pyrimidines from 6-Chloropyrimidine-5-carbaldehydes

Kaminskas A., Dailide M., Tumkevicius S.

Polish Journal of Chemistry

2002

Vol. 76 / nr 5

725-728

4-Dialkylamino-6-chloro-2-methylthiopyrimidine-5-carbaldehydes with sodium azide in dimethylformamide underwent ring closure reaction to form the corresponding isoxazolo[3,4-d]pyrimidines.