More sustainable approaches for the synthesis of N-based heterocycles

NR Candeias, LC Branco, PMP Gois… - Chemical …, 2009 - ACS Publications
More Sustainable Approaches for the Synthesis of N-Based Heterocycles | Chemical Reviews
ACS ACS Publications C&EN CAS Find my institution Log In Chemical Reviews ACS …

Synthesis and properties of 3-nitro--chromenes

VY Korotaev, VY Sosnovskikh… - Russian Chemical …, 2013 - iopscience.iop.org
Methods of synthesis and chemical properties of 3-nitro-$2 H $-chromenes, including
reactions with nucleophiles, cycloaddition, oxidation and reduction, have been reviewed …

An efficient and recyclable 3D printed α-Al2O3 catalyst for the multicomponent assembly of bioactive heterocycles

J Azuaje, CR Tubío, L Escalante, M Gómez… - Applied Catalysis A …, 2017 - Elsevier
A catalytic methodology is reported that enables the efficient, operationally simple and
environmentally friendly synthesis of diverse 1, 4-dihydropyridines and 3, 4-dihydropyrimidin …

A Novel Enantioselective Catalytic Tandem Oxa‐Michael–Henry Reaction: One‐Pot Organocatalytic Asymmetric Synthesis of 3‐Nitro‐2H‐chromenes

DQ Xu, YF Wang, SP Luo, S Zhang… - Advanced Synthesis …, 2008 - Wiley Online Library
Abstract An enantioselective oxa‐Michael–Henry reaction of substituted salicylaldehydes
with nitroolefins that proceeds though an aromatic iminium activation (AIA) has been …

Part II: nitroalkenes in the synthesis of heterocyclic compounds

AZ Halimehjani, INN Namboothiri, SE Hooshmand - RSC Advances, 2014 - pubs.rsc.org
This part (part II) is devoted to 6-membered heterocycles that are synthesized from
nitroalkenes as the key substrates. These compounds can be simply accessible to form …

[KSIĄŻKA][B] Green chemistry for environmental sustainability

SK Sharma, A Mudhoo - 2010 - books.google.com
By adopting green chemistry principles and methodologies, researchers can devise new
processes to help protect the environment from further damage. In this book, eminent …

Aldo‐X Bifunctional Building Blocks for the Synthesis of Heterocycles

P Ravichandiran, B Lai, Y Gu - The Chemical Record, 2017 - Wiley Online Library
Compounds containing oxygen, nitrogen, or sulfur atoms inside the rings are attracting much
attention and interest due to their biological importance. In recent years, several methods for …

Efficient kinetic resolution of racemic 3-nitro-2 H-chromene derivatives catalyzed by Takemoto's organocatalyst

JW **e, LP Fan, H Su, XS Li, DC Xu - Organic & Biomolecular …, 2010 - pubs.rsc.org
Efficient kinetic resolution of racemic 3-nitro-2H-chromenes by bifunctional thiourea afforded
optically active (R)-3-nitro-2H-chromene derivatives with moderate to good …

Synthesis of function-oriented 2-phenyl-2H-chromene derivatives using L-pipecolinic acid and substituted guanidine organocatalysts

BC Das, S Mohapatra, PD Campbell, S Nayak… - Tetrahedron letters, 2010 - Elsevier
Organocatalytic domino oxa-Michael/aldol reactions between salicylaldehyde with electron
deficient olefins are presented. We screened guanidine, 1, 1, 3, 3-tetramethylguanidine …

Catalytic performance of a metal-free graphene oxide-Al2O3 composite assembled by 3D printing

J Azuaje, A Rama, A Mallo-Abreu, MG Boado… - Journal of the European …, 2021 - Elsevier
This paper describes the first example of a 3D printed metal-free graphene oxide-Al 2 O 3
(GO-Al 2 O 3) catalytic system and evaluates its catalytic performance in model …