Synthesis and properties of symm-triazine derivatives. 4. Synthesis of 2,4,6-trisubstituted symm-triazines containing sterically-hindered phenol fragments

2,4,6-Trisubstituted symm-triazines containing sterically-hindered phenol fragments were synthesized by the cyclotrimerization of ethyl iminoesters. 2,4,6-Trimercapto-symm-triazine derivatives containing shielded phenol residues may be formed by the cyclotrimerization of the corresponding thiocyanates in acidic medium.For communication 3, see [1].Translated from Khimiya Geterosiklicheskikh Soedinenii, No. 1, pp. 107–113, January, 1986.