204 Unit 1 Hw 1 The Addition Of Hci To 3 Hexyne Occurs As An Anti Addition Give The Structure Stereochemistry And Na 1 (21.71 KiB) Viewed 43 times
204 Unit 1 Hw 1 The Addition Of Hci To 3 Hexyne Occurs As An Anti Addition Give The Structure Stereochemistry And Na 2 (20.72 KiB) Viewed 43 times
204-Unit 1 HW 1. The addition of HCI to 3-hexyne occurs as an anti-addition. Give the structure, stereochemistry, and name of the product 2. 3. Hydration of an alkyne is not a reasonable preparative method for each of the following compounds. Explain why a) CH₂CH₂CH=0 b) (CH₂)C-C-C(CH₂) a) Draw the structures of all enol forms of the following ketone, including stereoisomers CH,CH₂-C-CH(CH₂) c) Would alkyne hydration be a good preparative method for this compound? Explain 4. Outline two different preparations of 2-pentyne that involve an alkyne and an alkyl halide 5. Give the principle product(s) expected when 1-hexyne (or the other compounds indicated) is treated with each of the following reagents: a) HBr
6. b) H₂, Pd/C c) H₂, PdC, Lindlar catalyst d) Product of part c) +0₁, then (CH)S e) Product of part c) +BH₂ in THF, then H₂O₂/ *OH f) Product of part c) + Brz g) NaNH, in liquid ammonia h) Product of part g) + CH₂CH₂l i) Hg¹, H₂SO4, H₂O i) Product of part c), then Hg(OAC); in H₂O, then NaBH, Rank the anions within each series in order of increasing basicity, lowest first. Explain. a) CH₂CH₂O: HC=C: b) CH(CH₂)C=C: CH (CH₂)CH₂CH(CH₂)CH = CH
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