Triethyloxonium tetrafluoroborate is prepared from boron trifluoride, diethyl ether and epichlorohydrin: 4 Et2O·BF3 + 2 Et2O + 3 C2H3OCH2Cl → 3 [Et3O] [BF4] + B(OCH(CH2Cl)CH2OEt)3 where the Et stands for ethyl. The trimethyloxonium salt is available from dimethyl ether via an analogous route. These salts … See more Triethyloxonium tetrafluoroborate is the organic oxonium compound with the formula [(CH3CH2)3O] [BF4] . It is often called Meerwein's reagent or Meerwein's salt after its discoverer Hans Meerwein. Also well known and … See more The structure of triethyloxonium tetrafluoroborate has not been characterized by X-ray crystallography, but the structure of triethyloxonium hexafluorophosphate has been examined. The measurements confirm that the cation is pyramidal with C … See more Triethyloxonium tetrafluoroborate is a strong alkylating agent, although the hazards are diminished because it is non-volatile. It releases strong acid upon contact with water. … See more WebA. Varvoglis, in Hypervalent Iodine in Organic Synthesis, 1997 9.1.2 Alkenyl phenyliodonium salts. The best procedure for the preparation of these compounds involves alkenylsilanes …
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WebApr 15, 2001 · Purification: highly pure oxonium salt is obtained from dimethoxycarbenium tetrafluoroborate and dimethyl ether. 5 The resulting solid is vacuum dried at 50 °C/1 mmHg for 30 min. Handling, Storage, and Precautions: when prepared according to Curphey, 6 the oxonium salt is stable, nonhygroscopic, and may be readily handled in the air for short … WebHerein, we further explore N-ethylation of β-halo dehydroamino acid derivatives using triethyloxonium tetrafluoroborate as alkylating agent, but substituting N,N-diisopropylethylamine for potassium tert-butoxide as auxiliary base. ... which can be further applied in peptide synthesis. Publication types Research Support, Non-U.S. Gov't ... homes for sale in river bridge greenacres
Triethyloxonium tetrafluoroborate C6H15BF4O - PubChem
Webincubation of triethyloxonium tetrafluoroborate and 1,2-dimethoxyethane for 1 h, prior to addition of the substrate. In the course of these investigations it was found that the structures assigned to the alkaloids taraxacine A and B are erroneous. Key words: Triethyloxonium Tetrafluoroborate, O-Methylation, Pyridones, Alkaloids, Pyrrolin-2-ones Webtrimethyloxonium tetrafluoroborate (Me 3O + BF 4 ) and triethyloxonium tetrafluoroborate (Et 3O + BF 4 ). Named after the inventor Hans Meerwein,1 these trialkyloxonium salts are powerful alkylating agents. Preparation: 2 Example 1, The Meerwein reagent is an excellent O -alkylating agent: 5 Transforming an amide into its corresponding ethyl or ... WebTrimethyloxonium tetrafluoroborate for synthesis; CAS Number: 420-37-1; Synonyms: Trimethyloxonium tetrafluoroborate; find Sigma-Aldrich-841638 MSDS, ... hiram rhodes revels known for