[HTML][HTML] Effective Synthesis of Chiral N-Fluoroaryl Aziridines via Enantioselective Aziridination of Alkenes with Fluoroaryl Azides

LM Jin, X Xu, H Lu, X Cui, L Wojtas… - … Chemie (International ed …, 2013 - ncbi.nlm.nih.gov
Catalytic aziridination of alkenes with nitrene sources via “C2+ N1” addition represents a
general approach for the direct synthesis of aziridines, the smallest three-membered N …

BF3·OEt2-Mediated Highly Regioselective SN2-Type Ring-Opening of N-Activated Aziridines and N-Activated Azetidines by Tetraalkylammonium Halides

MK Ghorai, A Kumar, DP Tiwari - The Journal of organic chemistry, 2010 - ACS Publications
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 …

Organocatalysis by an aprotic imidazolium zwitterion: Regioselective ring-opening of aziridines and applicable to gram scale synthesis

NC Ghosal, S Santra, S Das, A Hajra, GV Zyryanov… - Green …, 2016 - pubs.rsc.org
An imidazole-based zwitterionic-salt, 4-(3-methylimidazolium) butane sulfonate (MBS), has
been found to be an efficient organocatalyst for aziridine ring-opening regioselectively by …

Syntheses of chiral β-and γ-amino ethers, morpholines, and their homologues via nucleophilic ring-opening of chiral activated aziridines and azetidines

MK Ghorai, D Shukla… - The Journal of Organic …, 2012 - ACS Publications
Lewis acid catalyzed quaternary ammonium salt mediated highly regioselective ring-
opening of chiral activated aziridines and azetidines with alcohols to nonracemic β-and γ …

Lewis acid catalyzed highly stereoselective domino-ring-opening cyclization of activated aziridines with enolates: synthesis of functionalized chiral γ-lactams

MK Ghorai, DP Tiwari - The Journal of Organic Chemistry, 2010 - ACS Publications
A highly enantio-and diastereoselective Lewis acid catalyzed SN2-type ring opening
followed by cyclization of aziridines with active methylene carbon nucleophiles to …

Enantioselective Syntheses of Morpholines and Their Homologues via SN2-Type Ring Opening of Aziridines and Azetidines with Haloalcohols

MK Ghorai, D Shukla, K Das - The Journal of Organic Chemistry, 2009 - ACS Publications
A highly regio-and stereoselective strategy for the syntheses in high yield and
enantioselectivity of a variety of substituted nonracemic morpholines and their homologues …

Synthetic route to chiral tetrahydroquinoxalines via ring-opening of activated aziridines

MK Ghorai, AK Sahoo, S Kumar - Organic Letters, 2011 - ACS Publications
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 …

Synthesis of novel sulfonamide azoles via C–N cleavage of sulfonamides by azole ring and relational antimicrobial study

HZ Zhang, P Jeyakkumar, KV Kumar… - New Journal of …, 2015 - pubs.rsc.org
A series of novel sulfonamide azoles were synthesized via C–N cleavage of sulfonamides
by an azole ring. This type of reaction could be performed smoothly in DMF and some …

Ring opening/C–N cyclization of activated aziridines with carbon nucleophiles: highly diastereo-and enantioselective synthesis of tetrahydroquinolines

MK Ghorai, Y Nanaji, AK Yadav - Organic Letters, 2011 - ACS Publications
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 …

Synthesis of Phenethylamine‐Azulene Conjugates Enabled by Regioselective Ring Opening of Aziridines

P García‐Martínez, O Bernardo, J Borge… - Advanced Synthesis …, 2024 - Wiley Online Library
Abstract The BF3⋅ OEt2‐catalyzed reaction of azulene with N‐protected aziridines
represents a general, efficient (up to 91% yield) and regioselective approach to …