Diethylaminosulfur trifluoride - Wikipedia
Diethylaminosulfur trifluoride (DAST) is the organosulfur compound with the formula Et 2 NSF 3. This liquid is a fluorinating reagent used for the synthesis of organofluorine compounds. [1] The compound is colourless; older samples assume an orange colour. Use in organic synthesis
(Diethylamino)sulfur trifluoride 95 38078-09-0 - MilliporeSigma
Diethylamino sulfur trifluoride (DAST) is a fluorinating reagent used in the synthesis of fluorinated compounds and ring-opening reactions. Application. Fluorinating agent: reaction with alcohols and carbonyl compounds, Review; Review on nucleophilic fluorination. ...
Diethylaminosulfur Trifluoride (DAST) - MilliporeSigma
Because of its ease of handling and versatility, DAST is an extremely popular reagent for nucleophilic fluorination. It has regularly been used in selective fluorinations of alcohols, alkenols, carbohydrates, ketones, sulfides, epoxides, thioethers, and cyanohydrins.
Diethylaminosulfur trifluoride | C4H10F3NS | CID 123472
2018年8月7日 · Reactants/Reagents. WATER + DIETHYLAMINOSULFUR TRIFLUORIDE. Warning Message. DAST alone at >90C explodes or in combination with water. GHS Category. Explosive . Reference Source. User-Reported . Modified Date. 7/8/18 . Create Date. 6/27/17 . Pistoia Alliance Chemical Safety Library. 7.3 Regulatory Information.
Diethylaminosulfur trifluoride - Wikiwand
Diethylaminosulfur trifluoride (DAST) is the organosulfur compound with the formula Et 2 NSF 3.This liquid is a fluorinating reagent used for the synthesis of organofluorine compounds. [1] The compound is colourless; older samples assume an orange colour.
(Diethylamino)sulfur Trifluoride 38078-09-0 | TCI AMERICA
Used Chemicals. 4-Nitrobenzyl Alcohol [N0180] (Diethylamino)sulfur Trifluoride (= DAST) [D1868] Dichloromethane; Procedure. To a solution of 4-nitrobenzyl alcohol (153 mg, 1.0 mmol) in dichloromethane (2.8 mL, 0.36 mol/L) was added DAST (144 µL, 1.1 mmol) dropwise and the mixture was stirred at room temperature for 1 hour. Ice water (3 mL) and dichloromethane (10 …
Fluorination with aminosulfuranes - Wikipedia
Prior to the introduction of diethylaminosulfur trifluoride (DAST) in 1970 for the replacement of hydroxyl groups with fluoride, sulfur tetrafluoride was the reagent most commonly used to accomplish this transformation. However, sulfur tetrafluoride only reacts with the most acidic hydroxyl groups (its substrate scope is limited), and is difficult to handle, toxic, and capable of …
Diversity-Oriented Synthesis Catalyzed by Diethylaminosulfur ...
Diethylaminosulfur-trifluoride (DAST) is a reagent commonly used for replacement of alcoholic hydroxyl groups with fluorine and is also known to catalyze water elimination and cyclic Beckmann-rearrangement type reactions. In this work we aimed to use DAST for diversity-oriented semisynthetic transformation of natural products bearing multiple ...
Diethylaminosulfur trifluoride, 95%, Thermo Scientific Chemicals
Diethylaminosulfur trifluoride (DAST) is used as a precursor to prepare 2,6-dimethoxybenzoyl fluoride and 2-thiazolines. It is a useful fluorinating agent used for a variety of compounds including alcohols, thioethers, alkenols and cyanohydrins. ... Convenient reagent for conversion, in the absence of base, of N-protected amino acids to the ...
Diethylaminosulfur trifluoride | 38078-09-0 - ChemicalBook
2024年10月25日 · Diethylaminosulfur trifluoride (DAST) has proven itself to be an extremely popular reagent for nucleophilic fluorination, due to its ease of handling and versatility. It has regularly been employed in a myriad selective fluorinations of alcohols, alkenols, carbohydrates, ketones, sulfides, epoxides, thioethers, and cyanohydrins.