alpha -Aminocyclopentenones are available in a single operation from alpha,beta -unsaturated nitriles and (methoxy)-methoxyallenes. The cyclization is equivalent to an imino Nazarov reaction. (C) 2001 Elsevier Science Ltd. All rights reserved.
Application of a new combination of palladium and CaCO3 for an aerobic Heck reaction using arenediazonium-salts
摘要:
Efficient Heck reactions under aerobic conditions were carried out using Pd-catalyst in the presence of CaCO3. Under these conditions a neat Heck Reaction using arenediazonium salts bearing functional groups including nitro functionalities can generally take place in good yields up to 95%. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.