DMF Dimethyl Acetal as Carbon Source for α-Methylation of Ketones: A Hydrogenation–Hydrogenolysis Strategy of Enaminones
摘要:
A novel heterogeneous catalytic hydrogenation hydrogenolysis strategy has been developed for the alpha-methylation of ketones via enaminones using DMF dimethyl acetal as carbon source. This strategy provides a very convenient route to alpha-methylated ketones using a variety of ketones without any base or oxidant.
DMF Dimethyl Acetal as Carbon Source for α-Methylation of Ketones: A Hydrogenation–Hydrogenolysis Strategy of Enaminones
摘要:
A novel heterogeneous catalytic hydrogenation hydrogenolysis strategy has been developed for the alpha-methylation of ketones via enaminones using DMF dimethyl acetal as carbon source. This strategy provides a very convenient route to alpha-methylated ketones using a variety of ketones without any base or oxidant.
An efficientsynthesis of unsymmetrically substituted 1,3-pyrazole derivatives has been developed via three-component coupling reaction involving 3-(dimethylamino)-1-phenylprop-2-en-1-one, hydrazine, and aryl halides in onepot process exhibiting high regioselectivity. The pyrazole synthesis proceeds via a sequential series of reactions such as Michael addition, heterocyclization, dehydration, and