Cesium Carbonate Catalyzed Esterification of N-Benzyl-N-Boc-amides under Ambient Conditions.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b02513
Abstract: We report a general activated amide to ester transformation catalyzed by Cs2CO3. Using this approach, esterification proceeds under relatively mild conditions and without the need for a transition metal catalyst. This method exhibits broad substrate… read more here.
Keywords: cesium carbonate; benzyl boc; esterification; carbonate catalyzed ... See more keywords
Cesium carbonate mediated C-H functionalization of perhalogenated 12-vertex carborane anions.
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DOI: 10.1039/d2cc00173j
Abstract: C-H functionalization of undecahalogenated carborane anions, [HCB11X11-] (X = Cl, Br, I), is performed with Cs2CO3 in acetonitrile. We show that the requisite Cl, Br and I carborane dianions can all be efficiently accessed with… read more here.
Keywords: mediated functionalization; carbonate mediated; functionalization; carborane anions ... See more keywords
Cesium carbonate-catalyzed synthesis of phosphorothioates via S-phosphination of thioketones.
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DOI: 10.1039/d2cc04331a
Abstract: A highly efficient and environmentally-friendly base-mediated transition metal-free direct thiophilic catalytic approach is reported for the synthesis of S-benzhydryl-phosphorothioates by reacting phosphite nucleophiles with diarylmethanethione. A wide variety of thioketones were coupled with different phosphite… read more here.
Keywords: via phosphination; synthesis phosphorothioates; phosphorothioates via; carbonate catalyzed ... See more keywords
Nitrile Hydration Reaction Using Copper Iodide/Cesium Carbonate/DBU in Nitromethane–Water
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DOI: 10.1055/s-0037-1609912
Abstract: The catalytic nitrile hydration (amide formation) in a copper iodide/cesium carbonate/1,8-diazabicyclo[5.4.0]undec-7-ene/nitromethane–water system is described. The protocol is robust and reliable; it can be applied to a broad range of substrates with high chemoselectivity. read more here.
Keywords: cesium carbonate; nitromethane water; iodide cesium; copper iodide ... See more keywords
Cesium Carbonate-Promoted P-Alkylation of Phosphinecarboxamides
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DOI: 10.1055/s-0037-1611364
Abstract: An effective method for the P-alkylation of N-arylphosphinecarboxamides was demonstrated. Primary N-arylphosphinecarboxamides without additional protection underwent P-monoalkylation with various alkyl halides in the presence of cesium carbonate as a promoter. The reactivity of phosphinecarboxamides was… read more here.
Keywords: cesium carbonate; carbonate promoted; alkylation phosphinecarboxamides; promoted alkylation ... See more keywords
α,β-Enone Borylation by Bis(Pinacolato)Diboron Catalyzed by Cu3(BTC)2 Using Cesium Carbonate as a Base
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DOI: 10.3390/nano11061396
Abstract: Cu3(BTC)2 (BTC: 1,3,5-benzenetricarboxylate) as a heterogeneous catalyst in the presence of cesium carbonate as a base is reported for the borylation of α,β-conjugated enones by bis(pinacolato)diboron (B2pin2). According to the hot-filtration test, Cu3(BTC)2 is acting… read more here.
Keywords: cesium carbonate; carbonate base; btc; cu3 btc ... See more keywords