Results 121 to 130 of about 10,179 (225)

Resolution of a Chiral β‐Aminoketone via Diastereomeric Salt Formation: From Experimental Evidence to Molecular‐Level Insights Into Solution‐Phase Clusters

Chirality, Volume 38, Issue 3, March 2026.
Subtle but significant differences between the heterochiral and homochiral salts during the prenucleation stage, revealed by molecular simulations, are related to the enantiomeric separation of a β‐aminoketone through the precipitation of its corresponding diastereomeric salts. ABSTRACT The classical diastereomeric salt resolution approach was employed
Caterina Momoli, Laura Palombi, Isabella Daidone, Erica Scarel, Massimiliano Aschi   +4 more
wiley   +1 more source

Green Synthesis of Poly(ε‐caprolactone) Using Environmentally Benign Organic Acid Catalysts: A Sustainable, Metal‐Free, and Solvent‐Free Route to Ring‐Opening Polymerization

Macromolecular Materials and Engineering, Volume 311, Issue 3, March 2026.
Ring‐opening polymerization of ε‐caprolactone was performed at 100°C under solvent‐free conditions using catalysts of various environmentally benign organic acids. The reaction rate was correlated with the pKa of the catalysts, and 1H NMR confirmed initiator‐derived chain ends.
Suguru Motokucho, Yusei Mito, Moe Sasai, Anh Thi Ngoc Dao, Hisayuki Nakatani   +4 more
wiley   +1 more source

Chiral Sodium Glycerophosphate Catalyst for Enantioselective Michael Reactions of Chalcones

Molecules
A chiral sodium glycerophosphate is successfully exploited as a catalyst in the Michael addition of methyl malonate to a number of chalcones. The reactions supplied the target adducts in satisfactory yields and good enantiomeric excesses.
Giovanni Ghigo, Julia Rivella, Alessio Robiolio Bose, Stefano Dughera   +3 more
doaj   +1 more source

1,3-Dicarbonyl compounds in stereoselective domino and multicomponent reactions

, 2010
International audienceModern organic synthesis focuses on the discovery and the development of stereoselective multiple bond-forming transformations allowing the creation of several covalent bonds in a single operation.
Bonne, Damien, Constantieux, Thierry, Coquerel, Yoann, Rodriguez, Jean   +3 more
core   +4 more sources

Metal‐Free Synthesis of 1,3‐Divinylimidazolidin‐2‐One

ChemistryOpen, Volume 15, Issue 3, March 2026.
The versatile building block 1,3‐divinylimidazolidin‐2‐one (DVI) was synthesized by a new route without the use of metal catalysts or gaseous acetylene, which was required according to previous methods. The synthesis utilizes commercially available inexpensive chemicals and enables the recycling of side products, allowing an economic and sustainable ...
Sabine Lorenzen, Roland Graf, Nikolai V. Ignat’ev, Michael Schulte, Axel Delp, Fabio Calo, Maik Finze   +6 more
wiley   +1 more source

Supported chiral proline and pyrrolidine organocatalysts for enantioselective C-C bond formation reactions. [PDF]

, 2013
This work has been aimed to the study of insoluble polymer-bound (IPB) chiral organocatalysts to be used under continuous flow or batch conditions for enantioselective transformations.
LEONCINI, ANDREA
core  

Mechanical chirality: a chiral catalyst with a ring to it

A chiral [2]rotaxane in which the asymmetry is derived from the way in which the two components are mechanically interlocked — rather than being encoded in the covalent connectivity of the components themselves — has been shown to act as an ...
Goldup, Stephen M.
core   +1 more source

Organometallic Organocatalysts [PDF]

Synfacts, 2019
openaire   +1 more source

Amines vs. N-Oxides as Organocatalysts for Acylation, Sulfonylation and Silylation of Alcohols: 1-Methylimidazole N-Oxide as an Efficient Catalyst for Silylation of Tertiary Alcohols [PDF]

, 2015
Murray, JI, Spivey, AC
core   +1 more source

Thermochemical and photochemical aerobic oxidation of benzylic alcohols in the presence of Cu(ii) nitrate, DDQ, and their combination. [PDF]

RSC Adv
Veisi H, Rostami A, Amani K, Charabeh A.
europepmc   +1 more source