Results 61 to 70 of about 2,735 (188)

Selective Transfer Hydrogenation of Furfural to Isopropyl Levulinate: An In Situ One‐Pot Cascade Approach [PDF]

open access: yesChemSusChem
In this article, we applied a combination of metal (0.5 mol%) and acid (1 mol%) that functioned harmoniously to selectively convert a bio‐based starting material, furfural, into small oxygenates. We used a transfer hydrogenation reaction with isopropanol acting as both the reducing agent and the reaction medium. Isopropyl levulinate, a key intermediate
Subramaniyan S   +2 more
europepmc   +2 more sources

Synthesis and Biological Evaluation of Thieno[3,2-d]- pyrimidinones, Thieno[3,2-d]pyrimidines and Quinazolinones: Conformationally Restricted 17b-Hydroxysteroid Dehydrogenase Type 2 (17b-HSD2) Inhibitors [PDF]

open access: yes, 2018
In this study, a series of conformationally restricted thieno[3,2-d]pyrimidinones, thieno[3,2-d]pyrimidines and quinazolinones was designed and synthesized with the goal of improving the biological activity as 17-hydroxysteroid dehydrogenase type 2 ...
Hartmann, Rolf W.   +2 more
core   +1 more source

Synthesis of the Pyrrolidinone Core of KSM-2690 B

open access: yesOrganic Letters, 2007
[reaction: see text] The first synthesis of the pyrrolidinone core of the polyene beta-lactone antibiotic KSM-2690 B is described. An ammonia-free Birch reductive aldol reaction utilizing acetaldehyde is one of the key steps, together with a ruthenium-catalyzed alkene isomerization reaction.
Donohoe, T, Chiu, J, Thomas, R
openaire   +2 more sources

Templated Native Silk Smectic Gels [PDF]

open access: yes
One aspect of the present invention relates to a method of preparing a fibrous protein smectic hydrogel by way of a solvent templating process, comprising the steps of pouring an aqueous fibrous protein solution into a container comprising a solvent that
Jin, Hyoung-Joon   +2 more
core   +4 more sources

I. INCORPORATION OF FUNCTIONALITY AT THE β-POSITION FOR THE ZINC-MEDIATED CHAIN EXTENSION REACTION II. FORMAL SYNTHESIS OF HELIOTRIDANE AND PSEUDOHELIOTRIDANE THROUGH A ZINC-MEDIATED CHAIN EXTENSION APPROACH [PDF]

open access: yes, 2022
The zinc-mediated chain extension reaction has been previously developed to incorporate alkyl or aryl substituents at the β position of the chain-extended product.
Arnista, Nicholas Alexander
core   +1 more source

Synthesis and Characterization of Polymeric Materials Derived From Multifunctional Alkyl a-Hydroxymethylacrylates [PDF]

open access: yes, 2008
The research presented in this dissertation covers the investigation of new materials derived from alkyl a-hydroxymethylacrylates (RHMA). The first project exposed in Chapter II involves the synthesis, characterization of RHMA-based reactive surfactants ...
Morizur, Jean-Francois
core   +1 more source

Synthesis of Functionalized Pyrrolidinone Scaffolds via Smiles-Truce Cascade. [PDF]

open access: yesOrg Lett, 2023
Sephton T   +3 more
europepmc   +1 more source

Synthesis and structural investigation of some 1,4-disubstituted-2-pyrrolidinones

open access: yesARKIVOC, 2005
Kristina Brokaite   +2 more
doaj   +1 more source

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