4,5-Dicyanoimidazole is used in activation of nucleoside phosphoramidites during solid-phase oligonucleotide synthesis, and synthesis of nucleoside phosphoramidites, synthesis of novel nucleosides. It is often used as an alternative to tetrazole.
Chandra Vargeese; Jeff Carter; John Yegge; Shira Krivjansky; Alecia Settle; Eric Kropp; Kent Peterson and Wolfgang Pieken. Efficient activation of nucleoside phosphoramidites with 4,5-dicyanoimidazole during oligonucleotide synthesis. Nucl. Acids Res.1998, 26, (4), 1046-1050.
Paul G. Apen; Paul G. Rasmussen. Synthesis and properties of new derivatives of 4,5-dicyanoimidazole and 4,4',5,5'-tetracyano-2,2'-biimidazole. J. Am. Chem. Soc.1991, 113, (16), 6178-6187.
Hazard Statements: H302-H315-H318-H335
Harmful if swallowed. Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.
Precautionary Statements: P280h-P305+P351+P338
Wear protective gloves/clothing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.