منابع مشابه
Efficient synthesis of aryl fluorides.
Selective functionalization reactions of aromatic and heteroaromatic halides with carbon, oxygen, and nitrogen nucleophiles have attracted much attention in the last decades. In addition to typical metal-catalyzed coupling reactions, direct functionalization of aryl halides through the formation of Grignard reagents offer new ways for the efficient construction of biologically interesting carbo...
متن کاملSynthesis of propargylic fluorides from allenylsilanes.
Allenylsilanes reacted at room temperature in acetonitrile with Selectfluor, an electrophilic fluorinating reagent, to give secondary propargylic fluorides in moderate to good yields; mechanistically, a side-product resulting from a 1,2-silyl shift testifies to the presence of a cationic intermediate.
متن کاملPalladium-catalyzed asymmetric synthesis of allylic fluorides.
The enantioselective fluorination of readily available cyclic allylic chlorides with AgF has been accomplished using a Pd(0) catalyst and Trost bisphosphine ligand. The reactions proceed with unprecedented ease of operation for Pd-mediated nucleophilic fluorination, allowing access to highly enantioenriched cyclic allylic fluorides that bear diverse functional groups. Evidence that supports a m...
متن کاملSynthesis of Sulphones from Sulphonyl Fluorides and Organometallic Compounds
Introduction Recently, /3-disulphones wrere synthesised in high yields from sulphonyl fluorides by interaction with alkylmagnesium bromides [1]. It is assumed that this reaction proceeds through the formation of a monosulphone which undergoes a-metallation followed by further reaction with the sulphonyl fluoride to produce /?-disulphone. Since aromatic sulphones cannot be metallated at the a-po...
متن کاملSol-Gel-Synthesis of Nanoscopic Complex Metal Fluorides
The fluorolytic sol-gel synthesis for binary metal fluorides (AlF₃, CaF₂, MgF₂) has been extended to ternary and quaternary alkaline earth metal fluorides (CaAlF₅, Ca₂AlF₇, LiMgAlF₆). The formation and crystallization of nanoscopic ternary CaAlF₅ and Ca₂AlF₇ sols in ethanol were studied by 19F liquid and solid state NMR (nuclear magnetic resonance) spectroscopy, as well as transmission electron...
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ژورنال
عنوان ژورنال: Tetrahedron Letters
سال: 2020
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2020.152539