Preparation and Transformations of Acetophenone-Derived Enamino Ketones, BF₂-β-Ketoiminates, and BF₂-β-Diketonates.

ABSTRACT: A series of differently substituted β-enaminones 2a,b, 4a-i, 8a-d, and 9-13, their BF₂-β-ketoiminate complexes 5a-d, and BF₂-β-diketonate complexes 6a-d were prepared as model substrates for photochemical transformations. The attempted photochemical transformations of enaminones 2, 4, 8 and BF₂-β-ketoiminate complexes 5 failed. On the other hand, irradiation of mixtures of BF₂-β-diketonate complexes 6a-d and cycloalkanes with UV-A light (365 nm) gave the corresponding De Mayo reaction products 7a-f in 9-30% yields. The photochemical ring-expansion of acetyl tetralone-derived BF₂-complex 6d g

SUBMITTER: Brodnik H 

PROVIDER: S-EPMC11820750 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature