Results 51 to 60 of about 1,953 (209)
Heteroatom as a Promotor: Synthesis of Polyfunctionalized Benzenes and Naphthalenes
, 2016 Construction of a new benzene via the electrocyclization of diene–allene is an efficient protocol to access polysubstituted benzenes from simple, readily available starting materials.
Yanpeng Xing (1643281) +3 more
core +1 more source
Selective Synthesis of Polyfunctionalized Pyrido[2,3‑b]indoles by Multicomponent Domino Reactions
, 2016 A series of novel polyfunctionalized pyrido[2,3-b]indoles were synthesized by three- or four-component domino reactions under microwave irradiation. This protocol has the advantages of readily available starting materials, short reaction times, high ...
Da-Qing Shi (1528189) +5 more
core +2 more sources
Rapid Communications in Mass Spectrometry, EarlyView.ABSTRACT Rationale Electrospray (ESI), the most popular desorption/ionization technique used in mass spectrometry‐based metabolomics, generates both protonated and deprotonated molecules, as well as adduct ions, sodium being the most frequent monoatomic cation entering their composition.
Annelaure Damont +9 more
wiley +1 more source
The polyfunctionality of Coptic Egyptian relative complementisers
Proceedings of the International Conference on Head-Driven Phrase Structure Grammar, 2014 The present study is concerned with the complex ways in which alternating relative complementisers in Coptic are employed as a morphological flagging device for unbounded dependencies in various types of relative clause constructions and wh questions.
Berthold Crysmann, Chris H. Reintges
openaire +3 more sources
The Chemical Record, EarlyView.This review offers a contemporary overview of metal‐catalyzed benzannulation (2018–present) encompassing transition, main‐group, post‐transition, and rare‐earth‐metal catalysts. It systematically highlights catalyst design, mechanistic insights, stereo‐ and regioselectivity, and synthetic applications toward aromatic and heteroaromatic scaffolds, while
Sana Jamshaid +5 more
wiley +1 more source
Asymmetric synthesis of polyfunctionalized pyrrolidines and related alkaloids
, 2004 This account describes our recent studies on the development of a general method of preparing polyfunctionalized pyrrolidine, indolizidine, pyrrolizidine and pyrrolo[1,2-a]azepines and their related ...
Minyan Tang (20116914) +6 more
core +1 more source
, 2016 A facile and efficient electrocyclization for the synthesis of polyfunctionalized benzene and naphthalene derivatives was reported. As a result of the ready availability of starting materials and simple operation, this type of reaction has potential ...
Yanpeng Xing (1643281) +3 more
core +1 more source
Fujiwara-Moritani reaction: challenges and new opportunities
Tetrahedron ChemFujiwara-Moritani reaction has proven to be robust for the efficient construction of polyfunctionalized olefins and cyclic skeletons. Recent advances toward greener systems, compatibility with strongly coordinating heterocycle substrates and sterically ...
Xiaojian Chen +5 more
doaj +1 more source
New Piperazine Derivatives Synthesized from Thio-Substituted Polyhalogeno-2-nitro-1,3-butadienes
E-Journal of Chemistry, 2010 It is known that polyhalogeno-nitro-1,3-butadienes are important starting materials for the synthesis of polyfunctionalized bioactive heterocycles.
S. Goksin Aydinli, Cemil Ibis
doaj +1 more source
Stereospecific Synthesis of Polyfunctionalized Carbacephams Induced by Titanocene(III) Chloride
, 2016 Enantiomerically pure N-substituted epoxyalkene-2-azetidinones reacted with titanocene monochloride to give stereospecifically polyfunctionalized bicyclic β-lactams.
Josefa Anaya (3033222) +3 more
core +1 more source