Aged red wine pigments as a source of inspiration for organic synthesis—The cases of the color-stable pyranoflavylium and flavylium-(4→ 8)-flavan chromophores

S Chassaing, G Isorez-Mahler, M Kueny-Stotz… - Tetrahedron, 2015 - Elsevier
Two flavylium-based chromophores peculiar to aged red wine pigments are investigated
from a synthetic viewpoint. The condensation between easy-to-prepare 5-hydroxy-4 …

Efficient Synthesis of Functionalized β‐Keto Esters and β‐Diketones through Regioselective Hydration of Alkynyl Esters and Alkynyl Ketones by Use of a Cationic …

C Tarigopula, GK Thota… - European Journal of …, 2016 - Wiley Online Library
Regioselective hydration of α‐alkynyl esters and ketones by using a cationic NHC–AuI
catalyst results in β‐keto esters and β‐diketones, respectively. Controlled release of water in …

Zinc-Mediated C− C Bond Sigmatropic Rearrangement: A New and Efficient Methodology for the Synthesis of β-Diketones

L Li, P Cai, D Xu, Q Guo, S Xue - The Journal of Organic …, 2007 - ACS Publications
A new and efficient methodology has been developed for the synthesis of β-diketones from
aromatic α-bromo ketones in the presence of Furukawa reagent under mild conditions. The …

The BF3× OEt2-assisted conversion of nitriles into thioamides with Lawesson's Reagent

M Nagl, C Panuschka, A Barta, W Schmid - Synthesis, 2008 - thieme-connect.com
A method for the thiolysis of nitriles by applying Lawesson's reagent and facilitated by the
addition of boron trifluoride-diethyl ether complex is reported. The method opens an easy …

Synthesis of (+)‐Centrolobine and Its Analogues by Using Acyl Anion Chemistry

K Sudarshan, IS Aidhen - European Journal of Organic …, 2013 - Wiley Online Library
A new route based on the use of acyl anion chemistry was developed for the synthesis of (+)‐
centrolobine and its analogues. Acid‐catalyzed benzylic cation initiated cyclization was the …

Synthesis of 3‐Arylisocoumarins by Using Acyl Anion Chemistry and Synthesis of Thunberginol A and Cajanolactone A

K Sudarshan, MK Manna… - European Journal of …, 2015 - Wiley Online Library
A new strategy for the synthesis of 3‐arylisocoumarins and 8‐hydroxy‐3‐arylisocoumarins
was investigated by using acyl anion chemistry for the initial C–C bond formation. The …

A Simple and Efficient One‐Pot Synthesis of Multifunctional 5‐Aryl‐5H‐thiazolo[3,2‐a]pyrimidines

S Fatima, A Sharma, R Sharma… - Journal of Heterocyclic …, 2012 - Wiley Online Library
A Simple and Efficient One‐Pot Synthesis of Multifunctional 5‐Aryl‐5H‐thiazolo[3,2‐a]pyrimidines
- Fatima - 2012 - Journal of Heterocyclic Chemistry - Wiley Online Library Skip to Article …

[图书][B] Aromatic Hydroxyketones: Preparation and Physical Properties

R Martin, JP Buisson - 2011 - Springer
Aromatic hydroxyketones are widely used as starting materials in organic synthesis to obtain
medicines, dyes, perfumes, etc., and many of them have also specific uses. This Handbook …

New strong base synthesis of symmetrical 1, 5-diaryl-1, 3, 5-pentanetriones from acetone and benzoate esters

JD Knight, CR Metz, CF Beam… - Synthetic …, 2008 - Taylor & Francis
Lithium hexamethyldisilazide (LiHMDS) was used to condense substituted benzoate esters
with acetone to afford symmetrical 1, 5-diaryl-1, 3, 5-pentanetriones that were isolated …

Copper (II) Sulfate

RV Hoffman, HSP Rao, S Rafi - Encyclopedia of Reagents for …, 2001 - Wiley Online Library
Abstract InChI= 1S/Cu. H2O4S. 5H2O/c; 1‐5 (2, 3) 4;;;;;/h;(H2, 1, 2, 3, 4); 5* 1H2/q+ 2;;;;;;/p‐2
InChIKey= JZCCFEFSEZPSOG‐UHFFFAOYSA‐L (Lewis acid catalyst for alcohol …