1, 4-Diazabicyclo [2.2. 2] octane (DABCO) as a useful catalyst in organic synthesis

B Bita - European Journal of Chemistry, 2010 - eurjchem.com
1, 4-diazabicyclo [2.2. 2] octane (DABCO) has been used in many organic preparations as a
good solid catalyst. DABCO has received considerable attention as an inexpensive, eco …

Versatility of DABCO as a Reagent in Organic Synthesis: A Review

N Chakraborty, AK Mitra - Organic & Biomolecular Chemistry, 2023 - pubs.rsc.org
DABCO (1, 4-diazabicyclo [2.2. 2] octane) has garnered a lot of interest for numerous
organic transformations since it is a low-cost, environmentally friendly, highly reactive …

Silica bonded n-propyl-4-aza-1-azoniabicyclo [2.2. 2] octane chloride (SB-DABCO): A highly efficient, reusable and new heterogeneous catalyst for the synthesis of 4H …

A Hasaninejad, M Shekouhy, N Golzar, A Zare… - Applied Catalysis A …, 2011 - Elsevier
The reaction of 3-chloropropyl silica with diazabicyclo [2.2. 2] octane in dry acetone affords
silica bonded n-propyl-4-aza-1-azoniabicyclo [2.2. 2] octane chloride (SB-DABCO) as a new …

Synthesis of 3, 5-disubstituted isoxazoles and isoxazolines in deep eutectic solvents

JM Perez, DJ Ramon - ACS Sustainable Chemistry & Engineering, 2015 - ACS Publications
The synthesis of different 3, 5-disubstituted isoxazoles and related isoxazolines using
choline chloride: urea as deep eutectic solvent (DES) in a one-pot three step reaction has …

1, 4‐Diazabicyclo [2.2. 2] octane (DABCO) as an Efficient Reagent for the Synthesis of Isoxazole Derivatives from Primary Nitro Compounds and Dipolarophiles: The …

L Cecchi, F De Sarlo, F Machetti - 2006 - Wiley Online Library
The dehydration of primary nitro compounds can be performed by bases in the presence of
dipolarophiles. The reactivity of several tertiary amines or azaheteroaromatic compounds …

Synthesis of 5‐(Fluoromethyl)‐4, 5‐dihydroisoxazoles by Silver‐Catalyzed Oxyfluorination of Unactivated Alkenes

YY Liu, J Yang, RJ Song, JH Li - Advanced Synthesis & …, 2014 - Wiley Online Library
A new silver‐catalyzed oxyfluorination of unactivated alkenes using commercially available
Selectfluor as the fluorine source is presented. This method provides a new access to 5 …

Synthesis of 4, 5‐Dihydroisoxazoles by Condensation of Primary Nitro Compounds with Alkenes by Using a Copper/Base Catalytic System

L Cecchi, F De Sarlo, F Machetti - Chemistry–A European …, 2008 - Wiley Online Library
A new procedure for the synthesis of 4.5‐dihydroisoxazoles by condensation of primary nitro
compounds with olefins by using a copper/base catalytic system is described. The catalytic …

Acid–Base‐Catalysed Condensation Reaction in Water: Isoxazolines and Isoxazoles from Nitroacetates and Dipolarophiles

E Trogu, C Vinattieri, F De Sarlo… - Chemistry–A European …, 2012 - Wiley Online Library
Base‐catalysed condensation reactions of nitroacetic esters with dipolarophiles to give
isoxazole derivatives proceed faster, and often with higher yields, in the presence of water …

Effect of Aqueous Polyethylene Glycol on 1, 3‐Dipolar Cycloaddition of Benzoylnitromethane/Ethyl 2‐Nitroacetate with Dipolarophiles: Green Synthesis of Isoxazoles …

R Gangadhara Chary… - Advanced Synthesis …, 2014 - Wiley Online Library
Abstract A 1: 1 mixture of water‐polyethylene glycol (PEG) facilitated the 1, 3‐dipolar
cycloaddition of benzoylnitromethane/ethyl 2‐nitroacetate with terminal alkynes or alkenes …

Enantiomerically Pure Polyheterocyclic Spiro-β-lactams from trans-4-Hydroxy-l-proline

G Cremonesi, P Dalla Croce, F Fontana… - The Journal of Organic …, 2010 - ACS Publications
The “Staudinger ketene− imine reaction” between ketenes generated from natural O, N-
protected trans-4-hydroxy-l-prolines and the N-benzyl-N-benzylideneamine led to mixtures …