Arynes are among the most active organic intermediates and have found numerous
applications in expeditious preparation of substituted arenes. In the past 20 years, chemists …

The discovery of new photosensitizer drugs with long wavelength Uv–vis absorption, high
efficiency and low side-effects is still a challenge in photodynamic therapy. Here a series of …

The B (C6F5) 3-catalyzed chemoselective hydrosilylation of α, β-and α, β, γ, δ-unsaturated
ketones into the corresponding non-symmetric ketones in mild reaction conditions is …

Several regioselective functionalized mono-and disubstituted [7] oxa-helicenoids have been
synthesized in the enantiomerically enriched (90–99% ee) form. These functionalized …

Synthesis of concave and vaulted 2 H-pyran-fused BINOLs has been achieved. A
regioselective, path-breaking concerted cascade route allows the placement of six …

We report the detailed mechanistic insights of L-proline catalyzed, solvent-controlled,
regioselective Mannich reaction. Different solvation models were employed to understand …

Analogies between the mechanisms of electrophilic substitution and nucleophilic
substitution have been discussed. Theoretical calculations, involving aromaticity …

Tetracyclic 6 H-naphtho [2, 1-c] chromenes are expeditiously synthesized through a BF3·
OEt2-mediated, three-step cascade reaction, creating new central pyran and aromatic rings …

Abstract Novel C 2-symmetric [5] oxahelicenoid diols were synthesized via
dehydroaromatization from the previous reported [5] oxahelicenoid dione 7 starting from 2 …

Summary This Chapter Contains Sections titled: 2+ 2‐Cycloaddition 2+ 3‐Cycloaddition 2+
4‐Cycloaddition Miscellaneous References Tetrafluorothiophene S, S‐dioxide is a potent …