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Usually we grudgingly accept that syntheses involving activated EAS reactions will unavoidably yield both ortho and para isomers, and this inefficiency is acceptable in exam and homework syntheses unless otherwise indicated. However, it is possible to design reaction sequences to minimize such unwanted side-products. Propose a 5-6 step synthesis of p-bromotoluene from benzene that minimizes production of the ortho regioisomer.
Q. Why elimination occurs instead of nucleophilic substitution when ethyl chloride reacts with alcoholic potassium hydroxide? Ans: Ethyl chloride can undergo both nucleophilic sub
Preparation of 2,2,6-trimethyl-5-phenylheptan-3-one: Safety 2-Bromopropane : Irritating to eyes, respiratory system and skin. If eye contact, wash with large volumes of
hoe to calibrate potentio meter in lab ?
A cylinder is equipped with a frictionless piston with an inner diameter of 5 cm and a mass of 3 kg. A 27 kg weight rests on the piston. One mole of helium at 25 o C fills the cyl
Anomalous behaviour of aluminium
Anomalous behaviour of boron
The number of unpaired electrons in a chromic ion Cr 3+ (atomic number = 24) is: (1) 6 (2) 4 (3) 3 (4) 1 Ans: 3
Q. Consider the lime-kiln process CaCO 3 (s) -> CaO (s) + CO2 (g). Find the number of intensive variables that can be varied independently in the equilibrium system under the foll
Free-radical mechanism: Free-radical polymerisation is started by organic peroxide or other reagents that decompose to give free radicals.
How long would it take to consume 13mg of Mg in 4.2mL of 1.25M HCl?
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