Cyclization reactions through cationic intermediates have become a highly valuable tool in
organic synthesis. The use of alkynes as the terminating group in this type of cationic …

Cyclopropylcarbinyl cations have been an important class of non-classical carbocationic
intermediates. Despite their delocalized cationic character and facile interconversion with …

Divergent synthesis of N-fused indolylidine, indole, and indoline derivatives using alkyne
iminium ion cyclization is described. Trapping of vinyl cation intermediate generated after …

A systematic analysis of the Cambridge Crystallographic Database has been made for
supramolecular architectures sustained by C–I⋯ π (chelate ring) interactions where the …

GaCl3 and (IPr) GaCl3/AgSbF6 formed γ-tertiary and γ-quaternary carbons via
homoconjugate addition of organoboron nucleophiles to diester-and ketone-functionalized …

The synthesis of fluorinated azabicycles from tert-butyldimethylsilyl-protected N-containing
cyclic enynols using inexpensive BF3· OEt2 is described. In this reaction, BF3 reacts as both …

A Lewis acid promoted cascade Friedel-Craft/alkyne indol-2-yl cation cyclization/vinyl cation
trapping for an efficient and divergent synthesis of N-fused indoles is developed. The …

A convenient and efficient phosphine-catalyzed sequential annulation domino reaction
between dienic sulfones and MBH carbonates has been developed. In the presence of 20 …

A highly regio-and diastereo-selective synthesis of halogenated C-vinyl glycosides has
been achieved from glycals and unactivated aryl acetylenes in the presence of halogenated …

Palladium (II) acetate in association with secondary phosphine oxides provides an efficient
catalytic system for [2+ 1] cycloadditions starting from oxanorbornene derivatives and tertiary …