6-Magnesiated Purines: Preparation and Reaction with Aldehydes

Autor: Dalimil Dvorak, Tomáš Tobrman
Rok vydání: 2003
Předmět:
Zdroj: Organic Letters. 5:4289-4291
ISSN: 1523-7052
1523-7060
DOI: 10.1021/ol0355027
Popis: [reaction: see text] Halogen-metal exchange reaction of 9-benzyl-6-iodopurine with iPrMgCl in toluene at -80 degrees C proceeds almost quantitatively. Such a purine-derived Grignard reagent reacts selectively with aldehydes in toluene, giving the corresponding alcohols in 25-62% yield, while other functional groups such as ketones, esters, and nitriles do not react under these conditions. The reaction can be extended to protected 6-iodopurine ribonucleoside.
Databáze: OpenAIRE