Molecules, 2023 A microwave-promoted multicomponent reaction of isatins, α-amino acids and 1,4-dihydro-1,4-epoxynaphthalene is achieved under environmentally friendly conditions, delivering oxygen-bridged spirooxindoles within 15 min in good to excellent yields.
Yaojing Shi, Hua Zhao, Yufen Zhao
doaj +1 more source
Astrochemistry: A Summary [PDF]
Proceedings of the International Astronomical Union, 1987 A summary is given of the presentations delivered at IAU Symposium 231.
openaire +4 more sources
Anatomy of Orion Molecular Clouds—The Astrochemistry Perspective/Approach
Frontiers in Astronomy and Space Sciences, 2021 The Orion molecular cloud (OMC) complex is the nearest and perhaps the best-studied giant molecular cloud complex within which low-mass and massive star formation occur. A variety of molecular species, from diatomic molecules to complex organic molecules
Dipen Sahu, Sheng-Yuan Liu, Tie Liu
doaj +1 more source
Astrochemistry: Synthesis and Modelling [PDF]
, 2012 We discuss models that astrochemists have developed to study the chemical composition of the interstellar medium. These models aim at computing the evolution of the chemical composition of a mixture of gas and dust under as- trophysical conditions. These conditions, as well as the geometry and the physical dynamics, have to be adapted to the objects ...
Wakelam, Valentine +2 more
openaire +4 more sources
Interstellar formation of lactaldehyde, a key intermediate in the methylglyoxal pathway. [PDF]
Nat CommunAldehydes are ubiquitous in star-forming regions and carbonaceous chondrites, serving as essential intermediates in metabolic pathways and molecular mass growth processes to vital biomolecules necessary for the origins of life.
Wang J +6 more
europepmc +2 more sources
Database of space life investigations and bioinformatics of microbiology in extreme environments
Frontiers in Microbiology, 2022 Biological experiments performed in space crafts like space stations, space shuttles, and recoverable satellites has enabled extensive spaceflight life investigations (SLIs).
Junyong Wang +11 more
doaj +1 more source
Design and implementation of a new apparatus for astrochemistry: Kinetic measurements of the CH + OCS reaction and frequency comb spectroscopy in a cold uniform supersonic flow. [PDF]
Journal of Chemical PhysicsWe present the development of a new astrochemical research tool, HILTRAC, the Highly Instrumented Low Temperature ReAction Chamber. The instrument is based on a pulsed form of the CRESU (Cinétique de Réaction en Écoulement Supersonique Uniforme, meaning ...
D. I. Lucas +3 more
semanticscholar +1 more source
Spectroscopic FTIR study for pathway of ribose formation via formose reaction in Astrochemistry
Journal of Physics: Conference Series, 2023 Ribose is one of the crucial molecular species in the study of the origin of life as it is the backbone of ribonucleic acid (RNA). On the early Earth, sugars including ribose are thought to be formed through formose reaction.
S. Homnan +7 more
semanticscholar +1 more source
Gliding on Ice in Search of Accurate and Cost-Effective Computational Methods for Astrochemistry on Grains: The Puzzling Case of the HCN Isomerization [PDF]
Journal of Chemical Theory and Computation, 2022 The isomerization of hydrogen cyanide to hydrogen isocyanide on icy grain surfaces is investigated by an accurate composite method (jun-Cheap) rooted in the coupled cluster ansatz and by density functional approaches.
Carmen Baiano +3 more
semanticscholar +1 more source
Molecules, 2023 Multicomponent reactions (MCRs) have undoubtedly emerged as the most indispensable tool for organic chemists worldwide, finding extensive utility in the synthesis of intricate natural products, heterocyclic molecules with significant bioactivity, and ...
Hua Zhao, Yufen Zhao
doaj +1 more source