Israel Agranat

The structure of the vat dye pyranthrone, a regioselective double Scholl Reaction product

Abstract The structure of the vat dye pyranthrone (2), first synthesized by Scholl in 1912, formed by the double Scholl reaction (AlCl 3 /NaCl melt) of 1,6-dibenzoylpyrene (1), was verified for the first time by 1 H- and 13 C-two-dimentional correlation NMR spectroscopy in nitrob...

At dawn we did not sleep. Contribution to the dawn of functional group translocation: ortho → para 1,3-acyl migration of 2-fluoroacetophenone

Abstract Functional Group Translocation (FGT) was defined ( Chem. Soc. Rev. 2026) as a transformation in which the molecular formula, the identity of the functional group, and the carbon framework remain unchanged, while only the bonding position of the functional group is altere...