THE SYNTHESIS OF DERIVATIVES OF 4,4'-SPIROBI[HEXAHIDROPYRIMIDINE]-2,2'- DIONES

A.B.Novruzova, S.Z.Kazımova, M.M.Kurbanova, A.M.Magerramov

It has been established that three-componential condensation of some aromatic aldehydes, acetone and ureas in the presence of catalyst H₂SO₄ leads to the formation of 4,4'-spirobi[hexahidropyrimidine]-2,2'-diones and their maximum yield is provided at the ratio of the pointed reagents equal to 2:3:2:1. The structure of the synthesized compounds has been proved by NMR, IR-spectroscopy and X-ray method

Keywords : 4,4'-spirobi[hexahidropyrimidine]-2,2'-diones, aromatic aldehydes, three-component condensation

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№3 2026

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