A Highly Regioselective Palladium‐Catalyzed O,S Rearrangement of Cyclic Thiocarbonates
Sign Up to like & getrecommendations! Published in 2017 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.201701181
Abstract: This work describes an operationally simple catalytic synthesis of cyclic S-thiocarbonates with predictable regioselectivity in good yields. The reaction utilizes substrates derived from ubiquitous 1,2-diols in an atom economical intramolecular rearrangement, catalysed by an inexpensive… read more here.
Keywords: cyclic thiocarbonates; catalyzed rearrangement; regioselective palladium; palladium catalyzed ... See more keywords
Highly regioselective hydroformylation of olefins with formic acid instead of toxic and flammable CO/H2
Sign Up to like & getrecommendations! Published in 2017 at "Science China Chemistry"
DOI: 10.1007/s11426-016-9004-4
Abstract: Hydroformylation is an atom-economic and highly efficient transformation from readily available olefins to various synthetically important carbonyl compounds [1]. By using this transformation, the largest amount of fine chemicals have been produced in the global… read more here.
Keywords: olefins formic; hydroformylation; formic acid; hydroformylation olefins ... See more keywords
Highly Regioselective Preparation and Characterization of New 6-O-Substituted Dieckol Derivatives
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Industrial and Engineering Chemistry"
DOI: 10.1016/j.jiec.2020.08.012
Abstract: Abstract Dieckol is a brown algae-derived polyphenol that has broad bioactivity and low toxicity. Therefore, it is a promising lead compound for the development of therapeutic agents to treat various pathological conditions, including viral infections,… read more here.
Keywords: dieckol; dieckol derivatives; hydroxyl groups; preparation characterization ... See more keywords
Highly regioselective enzymatic synthesis of lutein-3-monoesters
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.10.006
Abstract: Abstract Lutein, a xanthophyll carotenoid abundant in marigold flowers (Tagetes spp.), is found in the form of ester derivatives of fatty acids. Herein we present an enzymatic approach for the regioselective synthesis of 3-O-acyl monoester… read more here.
Keywords: synthesis lutein; enzymatic synthesis; regioselective enzymatic; highly regioselective ... See more keywords
Highly regioselective 1,3-dipolar cycloaddition of 3′-O-propargyl guanosine with nitrile oxide: An efficient method for the synthesis of guanosine containing isoxazole moiety
Sign Up to like & getrecommendations! Published in 2020 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2020.152464
Abstract: The 1,3-dipolar cycloaddition reaction of 3′-O-propargyl guanosine with various in-situ generated nitrile oxides in the presence of DMF as a solvent is described. It is noteworthy that the reaction is highly regioselective that affords biologically… read more here.
Keywords: guanosine containing; guanosine; propargyl guanosine; containing isoxazole ... See more keywords
Highly regioselective and sustainable solar click reaction: a new post-synthetic modified triazole organic polymer as a recyclable photocatalyst for regioselective azide–alkyne cycloaddition reaction
Sign Up to like & getrecommendations! Published in 2019 at "Green Chemistry"
DOI: 10.1039/c9gc00894b
Abstract: Sustainable and highly regioselective solar light-assisted approach for the azide–alkyne cycloaddition reaction using a perylene-derived post-synthetic modified triazole-linked organic polymer photocatalyst. read more here.
Keywords: azide alkyne; cycloaddition reaction; post synthetic; reaction ... See more keywords
Palladium-catalyzed highly regioselective mono and double Sonogashira cross-coupling reactions of 5-substituted-1,2,3-triiodobenzene under ambient conditions
Sign Up to like & getrecommendations! Published in 2020 at "RSC Advances"
DOI: 10.1039/d0ra01569e
Abstract: An efficient synthesis of 2,3-diiodinated diphenylacetylene and iodinated meta-terphenylacetylene derivatives through highly regioselective mono and double Sonogashira cross-coupling reactions of 5-substituted-1,2,3-triiodobenzene is reported. Significantly, the regioselectivity of coupling reactions is exclusively performed at the terminal… read more here.
Keywords: double sonogashira; regioselective mono; mono double; sonogashira cross ... See more keywords
Copper(ii)-catalyzed and acid-promoted highly regioselective oxidation of tautomerizable C(sp3)–H bonds adjacent to 3,4-dihydroisoquinolines using air (O2) as a clean oxidant
Sign Up to like & getrecommendations! Published in 2021 at "RSC Advances"
DOI: 10.1039/d1ra05671a
Abstract: A novel Cu(ii)-catalyzed and acid-promoted highly regioselective oxidation of tautomerizable C(sp3)–H bonds adjacent to 1-Bn-DHIQs was developed. This method was successfully applied in the first total synthesis of canelillinoxine. read more here.
Keywords: regioselective oxidation; promoted highly; acid promoted; catalyzed acid ... See more keywords
Highly regioselective synthesis of lactams via cascade reaction of α,β-unsaturated ketones, ketoamides, and DBU as a catalyst
Sign Up to like & getrecommendations! Published in 2023 at "RSC Advances"
DOI: 10.1039/d2ra07117g
Abstract: Herein, the aldol/Michael cascade reaction on the β,γ-positions of α,β-unsaturated ketones with ketoamides to construct bicyclic lactams via DBU catalysis has been developed. The substrates were well-tolerated with high regio- and diastereoselectivities in moderate to… read more here.
Keywords: highly regioselective; lactams via; ketones ketoamides; cascade reaction ... See more keywords
Highly regioselective and stereoselective cascade reductive cyclization of δ-ketoamide: practical access to oxa-bridged benzazepines.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical communications"
DOI: 10.1039/d3cc01495a
Abstract: A highly regioselective and stereoselective cascade reduction cyclization of δ-ketoamide is realized under LiAlH4-assisted conditions, providing an atom-economical and straightforward approach to access oxa-bridged benzazepines in moderate to good yields. This method overcomes the limitations… read more here.
Keywords: highly regioselective; cyclization ketoamide; access oxa; stereoselective cascade ... See more keywords
Mild, Efficient, and Highly Regioselective Synthesis of 2,6-Diiodobenzaldehyde Derivatives
Sign Up to like & getrecommendations! Published in 2020 at "Synlett"
DOI: 10.1055/s-0040-1708004
Abstract: An efficient and versatile synthesis of 2,6-diiodobenzaldehydes via highly regioselective metal–iodine exchange (MIE) of 5-substituted 1,2,3-triiodobenzenes is reported. The nature of substituents (R) on the phenyl has a large influence on the reactivity of reaction… read more here.
Keywords: diiodobenzaldehyde derivatives; synthesis diiodobenzaldehyde; highly regioselective; mild efficient ... See more keywords