Advances in the chemistry of tetrahydroquinolines

V Sridharan, PA Suryavanshi, JC Menendez - Chemical reviews, 2011 - ACS Publications
1.1. General Heterocyclic compounds, especially nitrogen heterocycles, are the most
important class of compounds in the pharmaceutical and agrochemical industries, with …

[PDF][PDF] Synthesis and biological activity of lamellarin alkaloids: an overview

M Iwao, T Fukuda, F Ishibashi - Heterocycles, 2011 - nagasaki-u.repo.nii.ac.jp
Lamellarins are natural products isolated from marine invertebrates having a unique
heterocyclic ring system. Many of these natural products exhibit potentially useful biological …

Simple reagents for direct halonium-induced polyene cyclizations

SA Snyder, DS Treitler, AP Brucks - Journal of the American …, 2010 - ACS Publications
Although there are many reagent combinations that can initiate polyene cyclizations, simple
electrophilic halogen sources have not yet proven broadly effective as promoters of such …

Enantioselective bromocyclization of olefins catalyzed by chiral phosphoric acid

D Huang, H Wang, F Xue, H Guan, L Li, X Peng… - Organic …, 2011 - ACS Publications
A chiral phosphoric acid catalyzed enantioselective bromocyclization of olefins is described.
Various cis-, trans-, or trisubstituted γ-hydroxy-alkenes and γ-amino-alkenes can cyclize …

Halogen bond catalyzed bromocarbocyclization

YC Chan, YY Yeung - Angewandte Chemie International …, 2018 - Wiley Online Library
A halogen bond catalyzed bromo‐carbocyclization of N‐cinnamyl sulfonamides and O‐
cinnamyl phenyl ethers has been developed. N‐methyl 4‐iodopyridinium triflate is used as …

Lamellarin alkaloids: Isolation, synthesis, and biological activity

T Fukuda, F Ishibashi, M Iwao - The Alkaloids: Chemistry and Biology, 2020 - Elsevier
Lamellarins are marine alkaloids containing fused 14-phenyl-6H-[1] benzopyrano [4′, 3′:
4, 5] pyrrolo [2, 1-a] isoquinoline or non-fused 3, 4-diarylpyrrole-2-carboxylate ring systems …

Enantioselective Bromoaminocyclization of Allyl N-Tosylcarbamates Catalyzed by a Chiral Phosphine–Sc(OTf)3 Complex

D Huang, X Liu, L Li, Y Cai, W Liu… - Journal of the American …, 2013 - ACS Publications
An effective enantioselective bromoaminocyclization of allyl N-tosylcarbamates catalyzed by
a chiral phosphine–Sc (OTf) 3 complex is described. A wide variety of optically active …

C−H Bond Functionalization via Hydride Transfer: Synthesis of Dihydrobenzopyrans from ortho-Vinylaryl Akyl Ethers

KM McQuaid, JZ Long, D Sames - Organic letters, 2009 - ACS Publications
The hydride transfer initiated cyclization (“HT-cyclization”) of aryl alkyl ethers, which leads to
direct coupling of sp3 C− H bonds and activated alkenes, is reported. Readily available …

Oxindole synthesis by palladium-catalysed aromatic C–H alkenylation

S Ueda, T Okada, H Nagasawa - Chemical communications, 2010 - pubs.rsc.org
A strategy involving palladium-catalysed aromatic C–H functionalisation/intramolecular
alkenylation provides a convenient and direct synthesis of 3-alkylideneoxindoles. In the …

Syntheses and biological activities of chroman-2-ones. A review

DP Kamat, SG Tilve, VP Kamat… - Organic Preparations and …, 2015 - Taylor & Francis
Chroman-2-one (1), also referred to as dihydrocoumarin, and its derivatives have attracted
the attention of chemists due to their broad range of properties. Dihydrocoumarin contains a …