20609-11-4Relevant academic research and scientific papers
Preparation of nitrogen-containing π-deficient heteroaromatic Grignard reagents: Oxidative magnesiation of nitrogen-containing π-deficient halogenoheteroaromatics using active magnesium
Sugimoto, Osamu,Yamada, Shigeru,Tanji, Ken-Ichi
, p. 2054 - 2057 (2007/10/03)
The oxidative magnesiation of nitrogen-containing π-deficient halogenoheteroaromatics using active magnesium was accomplished. Both magnesiation followed by addition of a carbonyl compound (Grignard reaction) and magnesiation in the presence of a carbonyl compound (Barbier reaction) were carried out to afford the corresponding product. Especially, the latter method enabled fused halogenodiazines such as 4-chloro-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine or 2-chloroquinoxaline to magnesiate at a mild temperature (-20 to 30 °C).
