Silver-catalyzed decarboxylative cross-coupling of α-keto acids with alkenes giving approach to chalcones
摘要:
A silver-catalyzed decarboxylative cross-coupling of alpha-keto acids with alkenes is reported. The method, with a wide range of substrate tolerance and mild operational conditions, can produce various chalcone derivatives in moderate to high yields from easily available starting materials. (C) 2017 Elsevier Ltd. All rights reserved.
carbonyl/ketone-assisted aerobic oxidative C–H olefination of aromatics with unactivated alkenes has been developed. This protocol involves cross-dehydrogenative Heck-type olefination reaction of various substituted biologically relevant chalcones and aromatic ketones such as acetophenones and chromones with various functionalized unactivated olefins in moderate to good yields. Further, ortho-alkylation of chalcones
Compounds and methods for treating or preventing a disease, disorder or condition associated with an Nrf2-regulated pathway, including those associated with an autoimmune disease, comorbidity associated with diabetes, such as retinopathy and nephropathy, bone marrow transplant for leukemia and related cancers, bone marrow deficiencies, inborn errors of metabolism, and other immune disorders, oxidative stress, respiratory infection, ischemia, neurodegenerative disorders, radiation injury, neutropenia caused by chemotherapy, autoimmunity, and congenital neutropenic disorders, and for restoring a corticosteroid responsiveness, in a subject are provided.