Title of article
A convenient synthesis of benzannelated diazacycloalkanes by reductive cleavage of 1,2-polymethylenebenzimidazoles
Author/Authors
Shvidenko، نويسنده , , Tatyana and Nazarenko، نويسنده , , Kostiantyn and Shvidenko، نويسنده , , Konstantin and Kostyuk، نويسنده , , Aleksandr، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2014
Pages
3
From page
279
To page
281
Abstract
A facile procedure for the synthesis of benzannelated diazacycloalkanes 3 is elaborated on the basis of reductive cleavage of 1,2-polymethylenebenzimidazoles 2 with DIBAL-H. The reduction of the corresponding salts prepared by treatment of 1,2-polymethylenebenzimidazoles 2 with methyl iodide proceeded differently affording exclusively o-phenylenediamines 10. The limitations and scope of the method were established, and a tentative mechanism proposed.
Keywords
Benzimidazoles , o-phenylenediamine , Dihydrobenzimidazoles , DIBAL-H , Polyazacycloalkanes
Journal title
Tetrahedron Letters
Serial Year
2014
Journal title
Tetrahedron Letters
Record number
1887496
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