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अंग्रेजी-हिंदी > grignard reaction उदाहरण वाक्य

grignard reaction उदाहरण वाक्य

उदाहरण वाक्य
21.It is used to manufacture pharmaceuticals and organic chemicals . 1-Bromohexane is also a solvent that is frequently used in grignard reactions, that are involved with creating bromo-cyclic compounds.

22.The mechanism resembles the Grignard reaction, in which the metal alkoxide can be generated by a radical stepwise pathway, through single electron transfer, or concerted reaction pathway via a cyclic transition state.

23.In his later years, Kharasch devoted his attention to studying the Grignard reaction and in 1954 co-authored a book with O . Reinmuth entitled " Grignard Reactions of Nonmetallic Substances ".

24.In his later years, Kharasch devoted his attention to studying the Grignard reaction and in 1954 co-authored a book with O . Reinmuth entitled " Grignard Reactions of Nonmetallic Substances ".

25.The Corriu group measured Grignard reaction half-times by NMR for related 18-crown-6 potassium salts of a variety of tetra-and pentacoordinated fluorosilanes in the presence of catalytic amounts of nucleophile.

26.Organolithium compounds, especially " n "-butyllithium, are useful reagents in organic synthesis, as might be expected given lithium's diagonal relationship with magnesium, which plays an important role in the Grignard reaction.

27.A Grignard reaction involving methylmagnesium bromide provided alcohol "'4 "', which was subjected to acid catalyzed Reduction and acylation gave diene "'7 "'( Scheme 3, compound 1 ).

28.Samarium ( II ) iodide has become a popular reagent for carbon-carbon bond formation, for example in a Barbier reaction ( similar to the Grignard reaction ) between a ketone and an alkyl iodide to form a tertiary alcohol:

29.In the history of the Nobel Prize in Chemistry awards have been given for the invention of specific organic reactions such as the Grignard reaction in 1912, the Diels-Alder reaction in 1950, the Wittig reaction in 1979 and olefin metathesis in 2005.

30.Thus, while diethyl ether remains the solvent of choice for some reactions ( e . g ., Grignard reactions ), THF fills that role in many others, where strong coordination is desirable and the precise properties of ethereal solvents such as these ( alone and in mixtures and at various temperatures ) allows fine-tuning modern chemical reactions.

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