4-Membered nitrogen-containing heterocycles, such as β-lactams (ie, 2-azetidinones) and
azetidines, are useful substrates in organic chemistry for the design and preparation of …

Facile construction of small and normal-sized, or more precisely, four to seven-membered
aza-heterocyclic ring systems is always a challenging yet rewarding task for the synthetic …

A highly regioselective Lewis acid-mediated SN2-type ring-opening of N-sulfonylaziridines
and azetidines with tetraalkylammonium halides in CH2Cl2 solution to afford 1, 2-and 1, 3 …

Azetidines (four-membered saturated nitrogen heterocycles) are found in a diverse range of
natural products, and also serve as valuable building blocks for other structural classes. The …

Lewis acid catalyzed quaternary ammonium salt mediated highly regioselective ring-
opening of chiral activated aziridines and azetidines with alcohols to nonracemic β-and γ …

A highly enantio-and diastereoselective Lewis acid catalyzed SN2-type ring opening
followed by cyclization of aziridines with active methylene carbon nucleophiles to …

An expeditious synthetic route to access structurally diverse 1, 4, 5, 6-tetrahydropyrimidines
via domino ring-opening cyclization of activated aziridines with α-acidic isocyanides has …

A highly regio-and stereoselective strategy for the syntheses in high yield and
enantioselectivity of a variety of substituted nonracemic morpholines and their homologues …

A highly regio-and stereoselective route for the synthesis of racemic and nonracemic
tetrahydroquinoxalines via the SN2-type ring-opening of activated aziridines with 2 …

A simple strategy for the synthesis of substituted tetrahydroquinolines through regio-and
stereoselective ring opening of N-tosyl aziridines with carbon nucleophiles generated from 2 …