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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.
Fluorination with aminosulfuranes is a chemical reaction that transforms oxidized organic compounds into organofluorine compounds.Aminosulfuranes selectively exchange hydroxyl groups for fluorine, but are also capable of converting carbonyl groups, halides, silyl ethers, and other functionality into organofluorides.
DAST may refer to: Diethylaminosulfur trifluoride , an organosulfur compound Draw-a-Scientist Test , designed to investigate children's perceptions of the scientist
This was demonstrated in the synthesis of meso-difluorosuccinate from (L)-tartrate and the synthesis of (D)- and (L)-difluorosuccinate from meso-tartrate. [6] Carbonyl compounds generally react with SF 4 to yield geminal difluorides. Reaction times tend to be on the order of hours and yields are moderate. [7]
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Computer-assisted organic synthesis software is a type of application software used in organic chemistry in tandem with computational chemistry to help facilitate the tasks of designing, predicting, and producing chemical reactions. CAOS aims to identify a series of chemical reactions which, from a starting compound, can produce a desired molecule.
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Iron and ligand are absorbed separately by the plant roots whereby the highly stable ferric chelate is first reduced to the less stable ferrous chelate. [6] In horticulture , iron chelate is often referred to as 'sequestered iron' and is used as a plant tonic, often mixed with other nutrients and plant foods (e.g. seaweed ).