Dually activated Michael-Michael-acetalization cascade: facile and highly diastereoselective construction of tetrahydro-6-hydroxyl-6H-benzo[c]chromen-9-one polycyclic scaffold

Recent Advances in the Transition Metal-Free Synthesis of Heterocycles from α, β-Unsaturated Ketones

Heterocyclic compounds are an inevitable part of our life. These important classes of molecules have a wide range of applications starting from life-sustaining drugs to agrochemicals. Numerous methods, including metal...

Diastereoselective synthesis of novel spiro indanone fused pyrano[3,2-c]chromene derivatives following hetero-Diels–Alder reaction andin vitroanticancer studies

Synthesis of novel spiro indanone fused pyrano[3,2-c]chromene derivatives following hetero-Diels–Alder reaction has been demonstrated and evaluated for theirin vitroanticancer activity.

Syntheses of Benzo[c]Chromen-6-ones by Palladium Catalyzed C–H Bond Activation using Diazonium Salts

An efficient palladium catalyzed C-H bond activation for the synthesis of benzo[ c]chromen-6-ones using diazonium salts is described. In the presence of Pd(OAc)2, dppp, PivOH and K2CO3, the diazonium salt can be transformed into the product through a denitrogenation/C-H bond activation/cyclization sequence in acetonitrile. Altogether, nine structurally diverse substituted benzo[ c]chromen-6-ones were prepared in excellent yields through two different methods.