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Why can butyllithium (BuLi) not be used for deprotonation?
The direct alkylation of enolates is often not very efficient for a preparative synthesis due to problems with further di- or tri-alkylation. Hence, enamines are sometimes used as an alternative.
Question: Steam initially in a vapor/liquid mixture with 80 percent liquid at 250C, expands isothermally and reversibly to a final state at 20 bar. Using the steam tables: a
For an electron if the uncertainty in velocity is Δ v , the uncertainty in its position( Δ x ) is given by: (1) hm/ 4 Π Δ b (2) 4 Π / hm Π v
What is the pollution?
Write down the molecular formula of the overall oxidation reaction of a fatty acid in these three reaction cascades. What roles do A and B play in these reaction cascades?
give examples of mixtures separated by distillation under reduced pressure
how to draw molecular orbital diagram for nitrogen?
#question.how you can prepare 5 normal solution of potassium nitrate in 2 litre volume?
Which of the following expressions gives the de-Broglie relationship: (1) h= γ/ mv (2) γ= h/mv (3) γ=m/ mv
Ask question #Minimum 100 words accepted Is there a sequential move from one to another, amongst law, theory, and a hypothesis? Describe controlled conditions to find a scientific
brief notes &uses
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