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- (a) (b) HO N N-H Catalytic H+ (-H₂O) ? (c) NH2 HO N (d)9. Plan syntheses of the following compounds. You may use the given starting material and any compound containing three or fewer carbons. (a) OH (b) Br Br- (c) ✓ -OTS (d) OHGive the IUPAC name for each metal salt of a carboxylate anion: (a) CgHsCO, Li"; (b) HCO, Na"; (c) (CH)2CHCO, K*; (d) (CH;CH2)2CHCH;CH(Br)CH2CHCO2 Na*.
- Chemistry 3. Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry. (а) NaOEt heat (b) heat (c) Br NaCN DMF (d) (e) OH H,SO,/H,PO, heat (f) HBr (g) 1) BH. THE 2) H,0, OH (h) 1) Hg(OAC), H-0 2) NaBH, (i) KMNO, NaOH ColdName the following alkyl halides: (a) Hас Br Br CH3 (b) I (c) Br CI CHз CH3CHCHCHCH,CHCH3 CH3CH=CHCH2CHCH3 CH3CCH,CHCHCH3 CH3 (d) CH2BR (e) CICH2CH2CH2C=CCH2B CH3CH2CHCH2CH2CH36. Write the IUPAC name for the following compounds. Show the stereochemistry whenever required (a) HO NH2 CI (b) NH2 QH но (c) он Br H. (d) (e) OH Br Br
- When propenal is treated with sodium acetylide, a product is formed whose IR spectrum exhibits a broad absorption between 3200 and 3600 cm¯1, but shows no absorption near 1700 cm-1. (a) Draw the structure of the product. (b) Argue whether the nucleophile adds reversibly or irreversibly to the carbonyl group. CH HC || CH2 1. HC=CNa ? 2. NH,CIProvide the structure of the product(s) with stereochemisty if appropriate. If multiple products indicate major product or if products are formed in equal amounts. If there is no reaction expected explain why. (a) OH HIO4 (the protecting group is remained) CHO H HOH2C OH (b) CHO -ОН NaCN # HO -H H -OH CH₂OH (c) CHO HO- -H HO -H NH₂OH 張一 H -OH H -OH CH₂OH i) Ba(OH)2 ii) MeOH, H₂SO4 NaOAc Ac₂0 NaOMe MeOHPredict the major product for the reaction shown. | IV (CH3)3CCH2Cl AICI3 나 = |||
- (b) Describe the hazards of (i) trioxygen: (ii) hydroxide ion; (ii) hydrogen sulfide. (c) Explain why an aqueous solution of sodium sulfide has an odor of hydrogen sulfide. (d) (11) Reduction of H,CCHCHO with NABH4 gives a product different from that of catalytic hydrogenation (H2 /Ni). What are the products?A compound X is bitter in taste. It is a component of washing powder& reacts withdil. HCI to produce brisk effervescence dur to colourless, odourless gas Y wich turns lime water milky due to formation of Z. When excs of CO2is passed, ilkinessdisappears due to formation of P. Identify X, Y, And Z & P.8. What is the major organic product generated in the reaction below? (A) (B) ||||| Br + Na OCH3 $ £ (C) (D) NO RXN (E)