3. How Se-reagents (selen) and oxidation(s) can be used to make the following transformation. Give reactions, reagents and conditions. PgO. Pgo. Pg = stable protection group.

Q: from the picture below tell the difference between epinephrine and ephedrine

A: The answer is as follows:  

Q: The reaction of sucrose with water in an acidic solution is C12H22011 H20 C,H1206 + C&H1206 sucrose ...

A:

Q: (d) + CH,CH;CH H*. 1. 2 eq CH,MgBr 2. H* HCI () H20 O:

A:

Q: solve for product and reactants please

A:

Q: Unlike catalysts, what added characteristics do enzymes have? or to Substrate specificity, inactivat...

A: In what manner enzyme differ from catalyst....

Q: A chromatographic analysis is performed with a sample containing toluene and benzene. The column len...

A:

Q: What event does a cathodic 'forward' peak correspond to? O oxidation O precipitation O reduction O d...

A: We have to tell what event means by a cathodic 'forward peak'. The given options are  oxidation pre...

Q: 5p 4d- 5s- 4p- 3d- 4s- 3p- 3s- 2р- 2s- 1s- Nucleus a. Draw the energy level (or an orbital) diagram ...

A:

Q: Consider the reaction in the box. Which of the following is a key intermediate in the mechanism of t...

A: Name of CH3CH2OH is ethanol that contains an alcohol functional group.  The given reactant  has a he...

Q: A supporting electrolyte is usually added to the analyte solution to O increase the scan rate. O mak...

A: Supporting electrolyte is an electrolyte which contains chemical species that are not electroactive....

Q: I. Directions: Draw the lewis structures of the neutral atom and the ion of each element. Determine ...

A: The determination of the valence electron count of all the given atoms is the important step to solv...

Q: Af I have 6.4 moles of gas at a pressure of 0.059 atm and at a temperature of 48.°C, what is the vol...

A:

Q: Briefly explain the difference between molarity, osmolarity and osmotic pressure?

A:

Q: A chemist adds 0.45 L of a 2.9 × 10 M copper(II) fluoride (CuF,) solution to a reaction flask. Calcu...

A:

Q: Convert 257 K to provided in Chapter 1 of the Figliola textbook. o C. Give your answer with 3-signif...

A:

Q: In antifreeze, ethylene glycol (dissolved in water) is 44% volume per volume, Antifreeze has a densi...

A: Given: %(v/v) of ethylene glycol = 44 % The density of solution = 1.23 g/mL. The density of ethylene...

Q: How many moles of citric acid is needed react with 0.74 moles of baking soda

A:

Q: 10) What is the IUPAC name of the following compound?

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: ow many milliliters of a stock solution of 10.0 M HNO3 would you have to mL you dilute 21.0 mL of th...

A: Part A: Given data set: M1= 10.0 M M2= 0.200 M V1=? V2= 0.500 L Using dilution formula: M1*V1= M2*V2...

Q: А) В) HO. C) D) HO.

A: In a given question , carboxylic acid is soluble in sodium bi carbonate it forms ionic compound .Nex...

Q: 9. Distance of atoms from each other (only an example): MgO= 2 nm and the bond length/distance are 1...

A:

Q: e pH of

A:

Q: 20) Which of the following statements is FALSE for the following equilibrium: 2CO(g) + 0:(g) = 2CO:(...

A: Which one of the following is FALSE...

Q: What is the product, A, that would be obtained from the following reaction sequence? OH PB 3 Li (CH;...

A: The reaction schema given is,  

Q: mass

A:

Q: The enthalpy for the following reaction is 136 kJ. If the reaction takes place in a closed container...

A:

Q: A solution made up of 2.00 g of an unknown solute and 275 mL of water (d = 1.00 g/mL) has an osmotic...

A: Given: Mass of solute = 2.00 g The volume of solution = 275 mL Osmotic pressure = 0.872 atm Tempera...

Q: For a spherical cell, as the surface area increases, the volume increases: not at all. at the same r...

A:

Q: 6 moles

A:

Q: The Kb for four bases are = 1.6 x 10$, CO;²- = 2.1 × 10-4, NH3 each of these weak bases were measure...

A: We have to predict the order of pH from high to low.  

Q: Where does the following first order equation K-0.693/t 1/2...(1) come from and why is this equation...

A:

Q: At an elevated temperature, K, = 4.0 × 10-6 for the reaction 2 HBr(g) = H2(g) + Br2(g). If the initi...

A: We are authorised to solve only one question at a time. Please post rest of the questions separately...

Q: Given 4.42 mol of the product N2, find the corresponding amount of NH3.

A: This question belong to Chemical Equilibrium. We have solved this question by Unitary Mathod mole-mo...

Q: In the reaction HzCоз+ H20 - нсоз + Нзо", the Brensted acids are Н20 and Hзo* H30* and H2CO3 О нсоз ...

A:

Q: if you add acid or base to a buffer, how will the pH change?

A: Buffer solution : Buffer solution is aqueous solution  of mixture of weak acid and its conjugate bas...

Q: he wavelength in

A:

Q: 3. Calculate the volume of each solution, in liters. C. a 0.4 M solution containing 290 g of aluminu...

A:

Q: What should you know about household cleaning products?

A:

Q: Calculate the [H*] of 5.8 x 10*° M magnesium hydroxide solution.

A: Given :-  Concentration of Magnesium hydroxide solution = 5.8 × 10-5 M  To calculate :-  [H+] i.e. h...

Q: Calculate [H*], [CIO,], and [OH¯]in an aqueous solution that is 0.165 M in HC1O,(aq) at 25 °C.

A: HClO4 is a strong acid .which shows college dissociation. Concentration of HClO4 and Hydrogen ion an...

Q: Write the cell reaction and electrode half-reactions and calculate the standard potential of each th...

A:

Q: Consider the simple reaction S P, with the forward rate characterized by a rate constant k1, the re...

A:    

Q: 1. What mass of the following chemicals is needed to make the solutions indicated? a. 1.0 liter of a...

A:

Q: When solid BaF, is added to pure water at 25 ° C, the salt dissolves until the concentration of Ba2+...

A: The dissociation of BaF2 is ,                        BaF2s↔Ba2+aq + 2F-aq The solubility of Ba2+ is ...

Q: What are the components of the buffer solution when 0.40 mol H3PO4 is mixed with 0.50 mol of a stron...

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...

Q: Question 4 Find the pH of 1.0 x 103 M nitric acid. O pH = 4.0 O pH = 2.0 pH = 3.0 pH = 3.5

A: Given data :  Concentration of HNO3 = 1.0×10-3 M  Chemical equation :  HNO3 -----> H+ + NO3-  [H+...

Q: onstant (?) data collected during the experiments. Plot the data to answer the questions. What is t...

A:

Q: А. `NH2 + CH3CH2O- B CH3 + H3C H3C

A: Correct option is (B) Because acetate ion is a weak base . Anion of acetate is stabilized by equival...

Q: solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute, in...

A:

Q: How many moles of oxygen are required to burn 2.42 mol of isopropanol? Express your answer to three ...

A: Balanced chemical equation for the combustion of isopropanol ( C3H7OH ) is given by,   2 C3H7OH(l) ...

Reactions of Ethers

Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.

Epoxides

Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.

Williamson Ether Synthesis

An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.