Results 191 to 200 of about 292,300 (359)

Domino Synthesis of Functionalized Cyclic Acetals From Organic Carbonates

Advanced Synthesis &Catalysis, EarlyView.
Cyclic carbonates equipped with acrylic functional groups are shown to undergo a domino process in the presence of a suitable alkoxide to deliver novel types of decorated cyclic acetals. The developed protocol combines practical conditions and a wide scope and features a new reactivity modus for these carbon dioxide‐derived heterocyclic precursors.
Natalia Kulbacka, Wangyu Shi, Sophie M. Guillaume, Jean‐François Carpentier, Jordi Benet‐Buchholz, Arjan W. Kleij   +5 more
wiley   +1 more source

Flavouring Group Evaluation 15, Revision 1 (FGE.15Rev1) ‐ Aryl‐substituted saturated and unsaturated primary alcohol/aldehyde/acid/ester derivatives from chemical group 22 ‐ Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC)

EFSA Journal, 2008
European Food Safety Authority (EFSA)
doaj   +1 more source

Optimizing GC-IMS for Pork Volatile Fingerprinting: Effects of Incubation Conditions and Medium on Aroma Profiles. [PDF]

Foods
Yu L, Wang B, Xu Z, Ge K, Yuan Y, Ding X, Men X, Qi K.   +7 more
europepmc   +1 more source

Asymmetric Synthesis of Atropisomeric Amines via Transaminase‐Catalyzed Dynamic Kinetic Resolution

Advanced Synthesis &Catalysis, EarlyView.
A dynamic kinetic resolution approach is developed for the atroposelective synthesis of heterobiaryl primary amines. Using transaminases and leveraging Lewis acid‐base interactions to induce racemization, a variety of axially chiral primary amines are produced in high yields and enantioselectivities.
Juan M. Coto‐Cid, Patricia Rodríguez‐Salamanca, Christian M. Heckmann, Caroline E. Paul, Joaquín López‐Serrano, Rosario Fernández, José M. Lassaletta, Valentín Hornillos, Gonzalo de Gonzalo   +8 more
wiley   +1 more source

Aldehyde Electrophilicity and Ring Strain Govern Xylose Acetalization Pathways for Biobased Chemical Production. [PDF]

ChemSusChem
Li ZJ, Patel DM, Sun S, Bourmaud CL, Chen TH, Vlachos DG, Luterbacher JS.   +6 more
europepmc   +1 more source

aldehydes [PDF]

Chemical & Engineering News Archive, 1953
openaire   +1 more source

Synthesis of Polysubstituted Tetrahydro‐1,4‐Thiazepines by Rhodium‐Catalyzed Ring Expansion of Dihydro‐1,3‐Thiazines with Diazoesters

Advanced Synthesis &Catalysis, EarlyView.
A rhodium(II)‐catalyzed ring expansion of stereodefined dihydro‐1,3‐thiazines with diazomalonates gives 1,4‐thiazepines via a sulfonium ylide rearrangement. The reaction shows a cis/trans reactivity divergence arising from different metal coordination, as revealed by experiments and density functional theory studies.
Laurine Tual, Romain Pertschi, Gaëlle Blond, Mihaela Gulea   +3 more
wiley   +1 more source

Cationic Cascade Strategy for the Synthesis of Dihydrobenzofuran and Isochromane Scaffolds. [PDF]

Org Lett
Zybura PK, Grant KJ, Frontier AJ.
europepmc   +1 more source

Gene expression analysis in epileptic hippocampi reveals a promoter haplotype conferring reduced aldehyde dehydrogenase 5a1 expression and responsiveness [PDF]

, 2020
Despina Tsortouktzidis, Herbert Schulz, Motaz Hamed, Hartmut Vatter, Rainer Surges, Susanne Schoch, Thomas Sander, Albert J. Becker, Karen M. J. van Loo   +8 more
openalex   +1 more source

Smart REASSURED Sensors via Machine‐Augmented Printable On‐Paper Arrays

Advanced Sensor Research, EarlyView.
This perspective highlights the emerging role of pattern‐recognition, printable on‐paper sensor arrays for intelligent PoC diagnostics. It discusses how paper's inherent limitations can be overcome through surface modification and scalable printing, and how machine‐learning analysis of cross‐reactive arrays enables multiplexed, low‐cost, and REASSURED ...
Naimeh Naseri, Saba Ranjbar
wiley   +1 more source