Synthesis of 3-demethylphenylsilyl-substituted pyrido[1,2-a]benzimidazoles-dimethylphenylsilylpyrido[1,2-
a]benzimidazoles. ©1996 Plenum Publishing Corporation.
Synthesis of 3-dimethylphenylsilyl-substituted pyrido[1,2-a]benzimidazolesSynthesis of 3-dimethylphenylsilyl-substituted pyrido[1,2-
a]benzimidazoles
1-R-2-[(1E,3E)-4-Aminobuta-1,3-dien-1-yl]-1H-benzimidazoles. Synthesis and some transformationsVarlamov A.V.,
Komarova A.I.,
Levov A.N.,
Savitkina E.V.,
Krapivko A.P.,
Khrustalev V.N.,
Sorokina E.A.,
Kulikova L.N.,
Nikitina E.V.,
Zaytsev V.P.,
Zubkova F.I. ,3-dienyl]-1H-benzimidazoles. The latter react with dimethyl acetylene-dicarboxylate to yield 4
a-[(E,Z,E)-6
Ultracentennial periodicity of solar activity and soil formationA comparison is made of the periodicity of change in the index of soil formation and solar activity