Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5275375 | Tetrahedron Letters | 2012 | 4 Pages |
Abstract
An easy synthetic method for the preparation of pyrazine-2,3-dicarbonitrile 5,6-bis-substituted derivatives using Pd-catalyzed cross coupling reaction (Sonogashira, Suzuki, Heck) is described. The reaction conditions allow preparing symmetrical and unsymmetrical bis-substituted products in moderate to high yields, as precursors for the preparation of highly substituted symmetrical and non-symmetrical aza-phthalocyanines with well-defined spectral properties.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Hasrat Ali, Johan E. van Lier,