2016
DOI: 10.1016/j.supflu.2015.11.004
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Asymmetric catalytic synthesis of functionalized tetrahydroquinolines in supercritical fluids

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Cited by 26 publications
(13 citation statements)
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“…Bifunctional tertiary amines were used as organocatalysts and the best results were achieved with cinchona–squaramide C87 . The substrate scope of N ‐tosylated chalcones 161 was also extended, and various tetrahydroquinolines 162 in good yields with high enantioselectivities (up to 96 % ee ) were synthesized (Scheme b) …”
Section: Organocatalysis In Green Solventsmentioning
confidence: 99%
“…Bifunctional tertiary amines were used as organocatalysts and the best results were achieved with cinchona–squaramide C87 . The substrate scope of N ‐tosylated chalcones 161 was also extended, and various tetrahydroquinolines 162 in good yields with high enantioselectivities (up to 96 % ee ) were synthesized (Scheme b) …”
Section: Organocatalysis In Green Solventsmentioning
confidence: 99%
“…The use of supercritical CO 2 (scCO 2 ) as an alternative green solvent in different reactions is receiving considerable attention due to its numerous advantageous properties . Surprisingly, in contrast to many reports on transition metal catalysis in scCO 2 , studies dealing with organocatalysis in this environmentally friendly medium are extremely rare . This is probably due to low solubility of polar organocatalysts in nonpolar scCO 2 .…”
Section: Introductionmentioning
confidence: 99%
“…[26][27][28][29] Supercritical CO 2 (scCO 2 )h as been often used in chemistry and chemical engineering as a green extracting agent of useful substances from plant and animal raw materials, [30] as an inexpensive and efficient eluent Ag lobal increasei ne nvironmental pollutiond emands the development of new "cleaner" chemical processes. Homogeneous [32] andh eterogeneous [33] catalytic or biocatalytic (enzymatic) reactions, [34][35][36] green polymerization processes, [15,16,37] and some other chemical reactions [38][39][40] were performed efficientlyi ns ub-and supercritical CO 2 . As ar esult of the favorable combinationo ft heir unique properties, ionicl iquids (ILs), dense gases, and supercritical fluids (SCFs) have gained considerable attention as suitable green chemistry media for the preparation and modification of important chemical compounds and materials.…”
Section: Introductionmentioning
confidence: 99%
“…for chromatography, [31] and as ac onvenient medium for the environmentally friendly preparationo fc hemical compounds and materials. Homogeneous [32] andh eterogeneous [33] catalytic or biocatalytic (enzymatic) reactions, [34][35][36] green polymerization processes, [15,16,37] and some other chemical reactions [38][39][40] were performed efficientlyi ns ub-and supercritical CO 2 . The global concern with regard to environmental safety in differenti ndustrial areas also affected the production of highenergy materials (HEMs).…”
Section: Introductionmentioning
confidence: 99%