Search Results - "Grigorjeva, Liene"

Cobalt-Catalyzed, Aminoquinoline-Directed C(sp2)H Bond Alkenylation by Alkynes by Grigorjeva, Liene, Daugulis, Olafs

“…A method for cobalt‐catalyzed, aminoquinoline‐ and picolinamide‐directed C(sp2)H bond alkenylation by alkynes was developed. The method shows excellent…”
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Cobalt-Catalyzed Direct Carbonylation of Aminoquinoline Benzamides by Grigorjeva, Liene, Daugulis, Olafs

“…A method for direct carbonylation of aminoquinoline benzamides has been developed. Reactions proceed at room temperature in trifluoroethanol solvent, use…”
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Cobalt-Promoted Dimerization of Aminoquinoline Benzamides by Grigorjeva, Liene, Daugulis, Olafs

“…A method for aminoquinoline-directed, cobalt-promoted dimerization of benzamides has been developed. Reactions proceed in ethanol solvent in the presence of…”
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Co(III) Intermediates in Cobalt-Catalyzed, Bidentate Chelation Assisted C(sp2)-H Functionalizations by Cizikovs, Aleksandrs, Grigorjeva, Liene

“…The C-H bond activation and functionalization is a powerful tool that provides efficient access to various organic molecules. The cobalt-catalyzed oxidative…”
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Synthesis of 1,2-Dihydroisoquinoline-1-Carboxylates Under Cobalt Catalysis by Zagorska, Paula Amanda, Grigorjeva, Liene, Bolsakova, Jekaterina

“…A study of cobalt-catalyzed C–H functionalization of phenylglycine derivatives with alkynes is described. During the optimization studies, a range of cobalt…”
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Unsaturated syn- and anti-1,2-Amino Alcohols by Cyclization of Allylic Bis-trichloroacetimidates. Stereoselectivity Dependence on Substrate Configuration by Grigorjeva, Liene, Kinens, Artis, Jirgensons, Aigars

“…Disubstituted allylic bis-imidates undergo Lewis acid catalyzed or spontaneous cyclization to oxazolines, which are precursors of unsaturated amino alcohols…”
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Synthesis of Alkynyl-Glycinols by Lewis Acid Catalyzed Propargylic Substitution of Bis-Imidates by Sirotkina, Jekaterina, Grigorjeva, Liene, Jirgensons, Aigars

“…Racemic and enantioenriched alkynyl‐glycinols can be synthesized by Lewis acid catalyzed cyclization reaction of bis‐trichloracetimidates derived from…”
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Lewis Acid Catalyzed Intramolecular Allylic Substitution of Bis(trichloroacetimidates): A Versatile Approach to Racemic Unsaturated Amino Acids by Grigorjeva, Liene, Jirgensons, Aigars

“…Lewis acid catalyzed cyclization of trichloroacetimidates derived from 1,4‐butenediols and 1,5‐butenediols was achieved to give 4‐vinyl oxazolines and…”
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Cobalt-Catalyzed, Aminoquinoline-Directed Functionalization of Phosphinic Amide sp2 C–H Bonds by Nguyen, Tung Thanh, Grigorjeva, Liene, Daugulis, Olafs

“…In this paper, we introduce arylphosphinic acid aminoquinoline amides as competent substrates for cobalt-catalyzed sp2 C–H bond functionalization…”
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Cobalt-catalyzed, aminoquinoline-directed coupling of sp(2) C-H bonds with alkenes by Grigorjeva, Liene, Daugulis, Olafs

“…A method for cobalt-catalyzed, aminoquinoline-directed ortho-functionalization of sp(2) C-H bonds with alkenes has been developed. Reactions proceed at room…”
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Cobalt-Catalyzed, Aminoquinoline-Directed C(sp2)H Bond Alkenylation by Alkynes by Grigorjeva, Liene, Daugulis, Olafs

“…A method for cobalt‐catalyzed, aminoquinoline‐ and picolinamide‐directed C(sp2)H bond alkenylation by alkynes was developed. The method shows excellent…”
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Synthesis of 3‑Hydroxymethyl Isoindolinones via Cobalt-Catalyzed C(sp2)–H Carbonylation of Phenylglycinol Derivatives by Lukasevics, Lukass, Cizikovs, Aleksandrs, Grigorjeva, Liene

“…An efficient method for the synthesis of 3-hydroxymethyl isoindolinones via cobalt-catalyzed C­(sp2)–H carbonylation of phenylglycinol derivatives using…”
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Cobalt-Catalyzed C(sp2)–H Carbonylation of Amino Acids Using Picolinamide as a Traceless Directing Group by Lukasevics, Lukass, Cizikovs, Aleksandrs, Grigorjeva, Liene

“…Herein we report an efficient protocol for the C­(sp2)–H carbonylation of amino acid derivatives based on an inexpensive cobalt­(II) salt catalyst…”
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Cobalt-Catalyzed, Directed C–H Functionalization/Annulation of Phenylglycinol Derivatives with Alkynes by Bolsakova, Jekaterina, Lukasevics, Lukass, Grigorjeva, Liene

“…A new method for cobalt-catalyzed C­(sp2)–H functionalization of phenylglycinol derivatives with terminal and internal alkynes directed by picolinamide…”
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Cobalt-catalyzed C–H bond functionalization using traceless directing group by Cizikovs, Aleksandrs, Lukasevics, Lukass, Grigorjeva, Liene

“…Available online-Transition metal-catalyzed C–H bond functionalization using traceless directing group (TDG) strategy has recently emerged as an attractive…”
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Synthesis of 3‑Benzazepines via Cobalt-Catalyzed C–H Bond Functionalization with CaC2 as the Acetylene Source by Cizikovs, Aleksandrs, Zagorska, Paula A., Grigorjeva, Liene

“…Herein, we report a simple method for the synthesis of 3-benzazepine derivatives via a cobalt-catalyzed, picolinamide-directed α-amidoacrylate C­(sp2)–H bond…”
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Synthesis of 3-Benzazepines via Cobalt-Catalyzed C-H Bond Functionalization with CaC 2 as the Acetylene Source by Cizikovs, Aleksandrs, Zagorska, Paula A, Grigorjeva, Liene

“…Herein, we report a simple method for the synthesis of 3-benzazepine derivatives via a cobalt-catalyzed, picolinamide-directed α-amidoacrylate C(sp )-H bond…”
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Co-H Functionalizations by Cizikovs, Aleksandrs, Grigorjeva, Liene

“…The C-H bond activation and functionalization is a powerful tool that provides efficient access to various organic molecules. The cobalt-catalyzed oxidative…”
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Cobalt‐Catalyzed Coupling of Benzoic Acid C−H Bonds with Alkynes, Styrenes, and 1,3‐Dienes by Nguyen, Tung Thanh, Grigorjeva, Liene, Daugulis, Olafs

“…A method for cobalt‐catalyzed, carboxylate‐directed functionalization of arene C−H bonds is reported. Alkynes, styrenes, and 1,3‐dienes can be coupled with…”
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Cobalt-Catalyzed, Aminoquinoline-Directed sp2 C-H Bond Alkenylation by Alkynes by Grigorjeva, Liene, Daugulis, Olafs

“…We have developed a method for cobalt-catalyzed, aminoquinoline- and picolinamide-directed sp 2 C-H bond alkenylation by alkynes. Method shows excellent…”
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