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- Melamine, used as a fire retardant and a component of the writing surface of white boards, can be prepared from s-trichlorotriazine through a series of SNAr reactions with ammonia. The first substitution takes place rapidly at room temperature. The second substitution takes place near 100 °C, and the third substitution requires even higher temperature and pressure. Provide an explanation fatr this reactivity.Identify A–E.Draw and name compounds that meet the following descriptions: (a) Three acid chlorides having the formula C6H9ClO (b) Three amides having the formula C7H11NO
- Treatment of compound A (C8H17Br) with NaOCH2CH3 affords two constitutional isomers B and C. Ozonolysis of B affords CH2=O and (CH3CH2CH2)2C=O. Ozonolysis of C affords CH3CH2CH2COCH3 and CH3CH2CHO. What is the structure of A?Draw the products formed when p-methylaniline (p-CH3C6H4NH2) istreated with following reagent. Part (b), then CH3COCl, AlCl3Give two syntheses for (CH3)2CH¬O¬CH2CH3, and explain which synthesis is better
- Draw the products formed when p-methylaniline (p-CH3C6H4NH2) is treated with each reagent. a. HCl b. CH3COCl c. (CH3CO)2O d. excess CH3I e. (CH3)2C = O f. CH3COCl, AlCl3 g. CH3CO2H h. NaNO2, HCl i. Part (b), then CH3COCl, AlCl j. CH3CHO, NaBH3CNWhat is the basicity of H2SO4The shrub ma huang (Section 5.4A) contains two biologically activestereoisomers—ephedrine and pseudoephedrine—with two stereogeniccenters as shown in the given structure. Ephedrine is one component ofa once-popular combination drug used by body builders to increaseenergy and alertness, whereas pseudoephedrine is a nasaldecongestant.a.) Draw the structure of naturally occurring (−)-ephedrine, which has the1R,2S configuration.b.) Draw the structure of naturally occurring (+)-pseudoephedrine, whichhas the 1S,2S configuration.c.) How are ephedrine and pseudoephedrine related?d.) Draw all other stereoisomers of (−)-ephedrine and (+) pseudoephedrine, and give the R,S designation for all stereogeniccenters.e.) How is each compound drawn in part (d) related to (−)-ephedrine?
- Treatment of compound A (C8H17Br) with NaOCH2CH3 affords twoconstitutional isomers B and C. Ozonolysis of B affords CH2=O and(CH3CH2CH2)2C=O. Ozonolysis of C affords CH3CH2CH2COCH3 andCH3CH2CHO. What is the structure of A?Rank the compounds in each set in order of increasing acid strength.(a) CH3CH2COOH CH3CHBrCOOH CH3CBr2COOHDraw the products formed when phenol (C6H5OH) is treated with following set of reagents. [1] CH3CH2Cl, AlCl3; [2] Br2, hν
