Sustainable Catalytic Process with a High Eco-Scale Score for the Synthesis of Five-, Six-, and Seven-Membered Heterocyclic Compounds Using Nanocrystalline Zeolites
Sign Up to like & getrecommendations! Published in 2017 at "Asian Journal of Organic Chemistry"
DOI: 10.1002/ajoc.201700120
Abstract: Nanocrystalline ZSM-5 and Beta zeolites were evaluated as catalysts for the one-pot synthesis of a wide range of five-, six-, and seven-membered heterocyclic compounds. Seven-membered compounds were prepared by the reaction of o-phenylenediamine and ketones,… read more here.
Keywords: heterocyclic compounds; reaction; seven membered; membered compounds ... See more keywords
Synthesis of original polycycles containing five-, six- and seven-membered rings through cyclocarbopalladations/C–H activation cascade reactions
Sign Up to like & getrecommendations! Published in 2017 at "Comptes Rendus Chimie"
DOI: 10.1016/j.crci.2017.01.005
Abstract: Abstract Different types of starting materials have been designed and their ability to undergo cascade reactions has been investigated. New polycycles containing five-, six-, and seven-membered rings are described via original cascade reactions. The process… read more here.
Keywords: cascade reactions; polycycles containing; containing five; seven membered ... See more keywords
Speed tunability of the excited-state intramolecular proton transfer process based on seven-membered ring pyrrole-indole H-bond systems
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2019.110887
Abstract: Abstract A speed tunable excited-state intramolecular proton transfer (ESIPT) system featuring a seven-membered ring, -NH- type hydrogen bonding pyrrole-indole moiety based on ‘naked’ diazaborepins (NDABs) was exhibited. In this paper, the speed of ESIPT process… read more here.
Keywords: excited state; state; state intramolecular; seven membered ... See more keywords
Two novel C18-diterpenoid alkaloids, sinomontadine with an unprecedented seven-membered ring A and chloride-containing sinomontanine N from Aconitum sinomontanum
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2017.03.013
Abstract: Astract Two new C18-diterpenoid alkaloids, sinomontadine (1) and sinomontanine N (2), were isolated from Aconitum sinomontanum. Their structures were determined by spectroscopic methods and X-ray crystallographic analysis. Sinomontadine (1) features an unprecedented skeleton containing a… read more here.
Keywords: membered ring; diterpenoid alkaloids; c18 diterpenoid; aconitum sinomontanum ... See more keywords
Highly Selective Aluminum(III) Ion Sensing with Luminescent Iridium(III) Complexes Bearing a Distorted 2,2'-Bipyridine-3,3'-diol Moiety Utilizing a Rigidified Seven-Membered Chelate Ring.
Sign Up to like & getrecommendations! Published in 2019 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.9b00373
Abstract: To create an ion sensor utilizing a rigidified seven-membered chelate ring, we developed two Ir(III) complexes with 2,2'-bipyridine-3,3'-diol (bpy(OH)2, bpydL) ligands as reaction centers, namely Ir1 ([Ir(ppy)2{bpy(O-)(OH)}], ppy = 2-phenylpyridine) and Ir2 ([Ir(bzq)2{bpy(O-)(OH)}], bzq =… read more here.
Keywords: iii; chelate ring; membered chelate; seven membered ... See more keywords
O-Annulation to Polycyclic Aromatic Hydrocarbons: A Tale of Optoelectronic Properties from Five- to Seven-Membered Rings.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c01331
Abstract: We take advantage of the Pummerer oxidative annulation reaction to extend PAHs through the formation of an intramolecular C-O bond with a suitable phenol substituent. Depending on the peripheral topology of the PAH precursor (e.g.,… read more here.
Keywords: optoelectronic properties; aromatic hydrocarbons; seven membered; polycyclic aromatic ... See more keywords
Generation of Fused Seven-Membered Polycyclic Systems via Ring Expansion and Application to the Total Synthesis of Sesquiterpenoids.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c01401
Abstract: Seven-membered polycyclic architectures, widely present in natural products and molecular drugs, are challenging synthetic targets. However, methods for synthesizing fused medium-sized bicyclo[m.n.0] ring systems, including the benzo-cycloheptane systems, are still urgent. Herein we describe a… read more here.
Keywords: application; fused seven; seven membered; membered polycyclic ... See more keywords
Diastereoselective Access to Seven-Membered Benzosultams via Palladium-Catalyzed Ring-Opening [3 + 2]-Annulation.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c01422
Abstract: A palladium-catalyzed ring-opening [3 + 2]-annulation of spirovinylcyclopropanyl oxindoles with seven-membered cyclic N-sulfonylimines has been developed. A wide range of seven-membered benzosultams featuring both a quaternary center and axially chiral biaryl scaffolds have been afforded… read more here.
Keywords: membered benzosultams; palladium catalyzed; seven membered; opening annulation ... See more keywords
Beyond 2‑Oxazolidinones: Access to N‑Unsubstituted Six- and Seven-Membered Analogues Using CO2 and Superbase Catalyst
Sign Up to like & getrecommendations! Published in 2025 at "Organic Letters"
DOI: 10.1021/acs.orglett.5c01410
Abstract: We report a straightforward synthesis of N-unsubstituted five-, six-, and seven-membered cyclic carbamates from amino alcohols and CO2, employing user-friendly propanephosphonic acid anhydride (T3P) as a dehydrating agent. Demanding substrates, such as amino alcohols bearing… read more here.
Keywords: seven membered; amino alcohols; superbase; access ... See more keywords
Discovery and Optimization of Seven-Membered Lactam-Based Compounds to Phenocopy the Inhibition of the Aurora Kinase B.
Sign Up to like & getrecommendations! Published in 2022 at "ACS medicinal chemistry letters"
DOI: 10.1021/acsmedchemlett.2c00098
Abstract: We used mechanism-informed phenotypic screening to identify and optimize compounds that phenocopy the genetic depletion of the mitotic aurora kinase B (AURKB) kinase. After assaying nine aryl fused seven-membered lactam compounds, we identified a hit… read more here.
Keywords: membered lactam; aurora kinase; seven membered; lactam based ... See more keywords
Defective Nanographenes Containing Seven-Five-Seven (7-5-7)-Membered Rings.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.0c12116
Abstract: Defects have been observed in graphene and are expected to play a key role in its optical, electronic, and magnetic properties. However, because most of the studies focused on the structural characterization, the implications of… read more here.
Keywords: membered rings; seven five; five seven; nanographenes containing ... See more keywords