No abstract

The direct aroylation of ArCOPdCl with potassium aryltrifluoroborates establishes a new cross-coupling synthetic tool for the synthesis of various fluorine substituted benzophenones. The new microwave irradiated process is very efficient and produce high yield benzophenone products within minutes.arylboronic acids [5] [6]. In this work, a new reaction method establishes for the direct aroylation reaction of potassium aryltrifluoroborates and ArCOCl in the presence of PdCl 2 (Ph 3 P) 2 (Scheme 1).

1994 reduction, hydrogenation reduction, hydrogenation O 0220 05 -098 Regio-and Stereocontrol in the Reductive Ring Opening of the Spirocyclic Epoxide Derived from the 4-Siloxy-2-cyclopentenone. -The reductive ring opening of the spiro epoxide (I) is performed with various metal hydrides. Depending on the nature of the reagent, the products (II), (IV), or (V) are formed as the main or exclusive product. -(TOMOOKA, K.; ISHIKAWA, K.; AL-MASUM, M.; NAKAI, T.; Synlett (1993) 9, 645-646; Dep. Chem. Technol., Tokyo Inst. Technol.,