Results 201 to 210 of about 4,472,736 (328)

Indole based multicomponent reactions towards functionalized heterocycles

ARKIVOC, 2004
Janos Sapi, Jean-Yves Laronze
doaj   +1 more source

Multicomponent reactions driving the discovery and optimization of agents targeting central nervous system pathologies. [PDF]

Beilstein J Org Chem
Campos-Prieto L, García-Rey A, Sotelo E, Mallo-Abreu A.   +3 more
europepmc   +1 more source

Catalyst-Free Formal Conjugate Addition/Aldol or Mannich Multicomponent Reactions of Mixed Aliphatic Organozinc Reagents, π-Electrophiles and Michael Acceptors. [PDF]

Molecules, 2023
Pinaud M, Presset M, Le Gall E.
europepmc   +1 more source

Regioselectivity in the multicomponent reaction of 5-aminopyrazoles, cyclic 1,3-diketones and dimethylformamide dimethylacetal under controlled microwave heating [PDF]

, 2012
Kamal Usef Sadek, Ramadan Ahmed Mekheimer, Tahany Mahmoud Mohamed, Moustafa Sherief Moustafa, Mohamed Hilmy Elnagdi   +4 more
openalex   +1 more source

Dynamic site‐interconversion reduces the induction period of methanol‐to‐olefin conversion

AIChE Journal, Volume 71, Issue 8, August 2025.
Abstract Reaction–diffusion coupling across the catalyst pore, grain, pellet, and reactor bed has been studied using a particle‐resolved transient microkinetic model applied to temperature‐programmed desorption and step‐response studies of methanol and dimethyl ether conversion over ZSM‐5 catalysts, respectively.
Toyin Omojola
wiley   +1 more source

Asymmetric Aziridination of Allylic Carbamates Using Ion‐Paired Rhodium Complexes and Extrapolation to C─H Amination of Phenethyl Carbamates

Angewandte Chemie, EarlyView.
Aziridination of alkenes is an important route to chiral nitrogen‐containing building blocks. We report that carbamate‐functionalized allylic alcohols undergo highly enantioselective aziridination using achiral dimeric Rh complexes ion‐paired with cinchona alkaloid‐derived chiral cations.
Arthur R. Lit, Shotaro Takano, Christian Zachau, Ioana Băltărețu, Robert J. Phipps   +4 more
wiley   +2 more sources

Deuterated reagents in multicomponent reactions to afford deuterium-labeled products. [PDF]

Beilstein J Org Chem
Schofield K, Maddern S, Zhang Y, Mastin GE, Knight R, Wang W, Galligan J, Hulme C.   +7 more
europepmc   +1 more source

Comparing exergy and heat pump work in distillation systems

AIChE Journal, EarlyView.
Abstract This study compares the exergy supplied to a distillation column with the actual energy consumption of a heat pump‐assisted distillation (HPAD) system. It evaluates the reliability of exergy as a proxy for heat pump work demand in such systems.
Akash Sanjay Nogaja, Mohit Tawarmalani, Rakesh Agrawal   +2 more
wiley   +1 more source

Evidence for Methylaluminoxane (MAO) Molecular Structure and Reactivity from Ultrahigh Magnetic Field 27Al MAS NMR Spectroscopy Combined with DFT Calculations

Angewandte Chemie, EarlyView.
The molecular structure of olefin polymerization activator methylaluminoxane (MAO) was probed using ultrahigh field solid‐state NMR backed with DFT calculations, revealing its key motifs and reactive centers. Abstract The structure and reactivity of methylaluminoxane (MAO), a reagent of major interest for olefin polymerization, both industrially and ...
Kai Szeto, Mostafa Taoufik, Franck Fayon, David Gajan, Eva Zurek, Jochen Autschbach, Julien Trébosc, Laurent Delevoye, Régis M. Gauvin   +8 more
wiley   +2 more sources

Synthesis of pyrrole-fused dibenzoxazepine/dibenzothiazepine/triazolobenzodiazepine derivatives via isocyanide-based multicomponent reactions. [PDF]

Beilstein J Org Chem
Norouzi M, Nazeri MT, Shaabani A, Notash B.   +3 more
europepmc   +1 more source