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Stereoselective synthesis of trisubstituted alkenyl Fischer aminocarbenes through self-mediated α-haloketone olefination
The stereoselective synthesis of trisubstituted alkenes bearing Fischer aminocarbene moiety was developed. The structures of isolated complexes were determined by means of 2D NMR techniques and nOe. Disubstituted oxiranes were isolated as intermediat...
Organic chemistry
- 2019 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Synthesis of Disubstituted Pyrazino-Oxazine Derivatives with Controlled Stereochemistry
Herein, we report a simple synthesis of disubstituted pyrazino-oxazines with controlled stereochemistry using readily available building blocks: N-Fmoc-protected α-amino acids and 2-bromoketones. The convenient solid-phase synthesis...
Organic chemistry
- 2017 •
- Jost •
- Link
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Jost - Ostatní články v recenzovaných periodicích
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Solid-Phase Synthesis of Trisubstituted 2,5-Dihydrobenzo[f]thiadiazepine 1,1-Dioxide Derivatives
The solid-phase synthesis of trisubstituted 2,5-dihydrobenzo[f]thiadiazepine 1,1-dioxides is reported. Acyclic polymer-supported intermediates were prepared using commercially available building blocks: Fmoc-protected amino acids, 2-nitrobenzenesulfo...
CC - Organická chemie
- 2014 •
- Jx •
- Link
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Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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Polymer-supported ?-Acylamino Ketones: Preparation and Application in Syntheses of 1,2,4-Trisubstituted-1H-imidazoles
Polymer-supported ?-acylamino ketones were prepared from resin-bound amines, bromoketones, and carboxylic acids. Selective monoalkylation of amines by bromoketones was carried out via 4-nitrobenzenesulfonamides. There was a striking...
CC - Organická chemie
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
a-Amino acid-derived 2-phenylimidazoles with potential antimycobacterial activity
acids(Ala, Val, Phe, Leu, iLe, and Pro) into alfa-diazoketones and alfa-bromoketones, respectively. Subsequent treatment of alfa-bromoketones with (4-nitro) benzamidine afforded......
CC - Organická chemie
- 2012 •
- Jx •
- Link
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Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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alpha-Amino acid-derived 2-phenylimidazoles with potential antimycobacterial activity
-bromoketones, respectively. Subsequent treatment of alpha-bromoketones with (4-nitro...
CC - Organická chemie
- 2012 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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Efficient Solid-Phase Synthesis of 2-Substituted-3-Hydroxy-4(1H)-Quinolinone-7-Carboxamides withTwo Diversity Positions
A highly efficient solid-phase synthesis of 2-substituted-3-hydroxy-4(1H)-quinolinone-7-carboxamides was developed using anthranilates and bromoketones as the key synthons. Primary amines immobilized to an acid-cleavable BAL linker were acyl...
CC - Organická chemie
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Polymer-supported Stereoselective Synthesis of Benzoxazino[4,3-b][1,2,5]thiadiazepinone-6,6-dioxides
Herein, we report the stereoselective synthesis of trisubstituted benzoxazino[4,3-b][1,2,5]thiadiazepinone 6,6-dioxides from polymer-supported Fmoc-Ser(tBu)-OH and Fmoc-Thr(tBu)-OH. After the solid-phase synthesis of N-alkylated-N-sulfonylated interm...
Organic chemistry
- 2017 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
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Polymer-assisted Synthesis of Single and Fused Diketomorpholines
-Nos-Cl), alkylation with an -bromoketone, cleavage of the 4-Nos group...
Organic chemistry
- 2019 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Convenient synthesis of thiohydantoins, imidazole-2-thiones and imidazo[2,1-b]thiazol-4-iums from polymer-supported alpha-acylamino ketones
The preparation of 5-methylene-thiohydantoins via solid-phase synthesis is reported in this article. After sulfonylation of immobilized Ser(tBu)-OH with 4-nitrobenzenesulfonyl chloride followed by alkylation with various bromoketones, the 4-...
Organic chemistry
- 2018 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
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