4. Hydrocarbon A has the molecular formula C14H10C12. It absorbs eight molar equivalents of any hydrogen isotope using a Nickel catalyst. When subjected to ozonolysis, Compound A yields oxalic acid and the chiral chloropentane dioic acid. Write the reactions and propose a structure for A.
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- An organic chemist was subjected to sodium fusion and the resulting lassaigne's extract boiled with FeSO4 and acidified with concentrated H2SO4, yielding a prussian blue color. Give the structure of one of the organic compounds which fits the description.Compound A, C3H7Br, does not react with cold dilute potassium permanganate solution. Upon treatment with potassium hydroxide in ethanol, A gives only product B, C3H6. Unlike A, B decolourises potassium permanganate solution. Ozonolysis of Bgives C, C2H4O, and D, CH2O. Suggest the structural formulae of A, B, C and D.Write the equations for all the reactions involved.Hydrocarbon A has the formula C9H12 and absorbs 3 equivalents of H2 to yield B, C9H18, when hydrogenated over a Pd/C catalyst. On treatment of A with aqueous H2SO4 in the presence of mercury(II), two isomeric ketones, C and D, are produced . Oxidation of A with KMnO4 gives a mixture of acetic acid (CH3COOH) and the tricarboxylic acid E. Propose structures for compounds A-D, and write the reactions.
- Wolff-Kishner reduction of compound W gave compound A. Treatment of A with m-chloroperbenzoic acid gave B which on reduction with LiAH4 gave C. Oxidation of compound C with chromic acid gave D (C9H14O). Suggest the structures for A, B, C, and D.Two moles of organic compound ‘A’ on treatment with a strong base gives two compounds ‘B’ and ‘C’. Compound ‘B’ on dehydrogenation with Cu gives ‘A’ while acidification of ‘C’ yields carboxylic acid ‘D’ with molecular formula of CH2O2. Identify the compounds A, B, C and D and write all chemical reactions involved.On being heated with a solution of sodium ethoxide in ethanol, compound A (C7H15Br) yielded a mixture of two alkenes B and C, each having the molecular formula C7H14. Catalytic hydrogenation of the major isomer B or the minor isomer C gave only 3-ethylpentane. Suggest structures for compounds A, B, and C consistent with these observations.
- Describe the ozonolysis of alkenes one mole of a hydrocarbon(A) reacts with one mole of beomine giving a dibromo compound C5H10Br2.Substance A on treatment with cold dilute kMnO4 solution forms a compound C5C12O2(C5H12O2) on ozonolysis A,gives equimolar quantities of propanone and ethanol.Deduce the structure of substance A.Compound A has the molecular formula C14H25Br and was obtained by reaction of sodium acetylide (HC≡CNa) )with 1,12-dibromododecane. On treatment of compound A with sodium amide, it was converted to compound B (C14H24). Ozonolysis of compound B gave the diacid HO2C(CH2)12CO2H. Catalytic hydrogenation of compound B over Lindlar palladium gave compound C (C14H26), while hydrogenation over platinum gave compound D (C14H28). Sodium-ammonia reduction of compound B gave compound E (C14H26). Both C and E yielded O═CH(CH2)12CH═O on ozonolysis. Assign structures to compound A through E so as to be consistent with the observed transformations.A compound A, C7H12, was found to be optically active. On catalytic reduction over platinum catalyst, 2 equivalents of hydrogen were absorbed, yielding compound B, C7H16. On ozonolysis of A, two fragments were obtained. One fragment was identified as acetic acid. The other fragment, compound C, was an optically active carboxylic acid, C5H10O2. Write the reactions and draw structures for A, B and C.
- Stearolic acid, C18H32O2, yields stearic acid on catalytic hydrogenation and undergoes oxidative cleavage with ozone to yield nonanoic acid and nonanedioic acid. What is the structure of stearolic acid?Compound A is a branched-chain alcohol that undergoes oxidation to produce compound B. Compound B is a ketone that gives positive triiodomethane reaction. Compound B is then reacted with phenyl magnesium bromide, C6H5MgBr in the presence of aqueous acid to form compound C. Compound C has the molecular formula of C11H16O (i) Deduce the structure for compound A, B and C. (ii) State the observation when compound C is added with acidified potassium dichromate(VI).Compound A is an alcohol that undergoes oxidation to produce compound B.Compound B is a ketone that gives positive triiodomethane reaction. Compound B isthen reacted with phenyl magnesium bromide, C6H5MgBr in the presence of aqueousacid to form compound C. Compound C has the molecular formula of C9H12O. Deducethe structure for compound A, B and C. PLEASE PROVIDE CLEAR DRAWINGS AND EXPLANATIONS