Question

Chapter 9 Alkynes

2. How many carbons are in the smallest cycloalkyne? rings? 9. Why can't there be smaller AREAD 3. What's the point of Dr. Klein discussing "s-character"? (i.e. what the moral to the story?) Electronegativity 4. Draw a picture of (4R,5R)-4-chloro-5-bromo-2-hexyne & 2,2-dimethyloct-4-yne - New paris 5. What are the names of the following molecules? 6. What is the point of adding water in the second step? | 1. NaNH, NH (1) 2. HO 3. cloromethane 6b. After adding water, does the hydroxide significantly deprotonate the alkyne? Why or why not? 6c. Draw the product of this reaction (overall). 7. What is the name of the mechanistic step when Na metal is to donate one electron?

Please help me answer questions 4-7! :)

Answer 1

(4R, SR)-4-chloro-5-bromo-2-hexyne > R H BY 4th periority on dash clockwisc = R' 2,2-dimethyloct - 4-yne Xar 3- Ethyl-4,4-dimethylpintyne Še 3- Ethynyl cyclohexene en persona pent-2-en-1-yne

1. Nanh, Nhaca) 2. H₂O 3. Chloromethane 1. Nanna Nugal) Le Nat + nha =) + Nhoon SN2 | Senza - a water is added when sodamide (Nanka) read with terminal alkyne can acid bare ran) to give salt W arna) . After adding water, hydroxide (from Nhyon) deprotonate the alkyne. Because NH3 react with H2O to give Nhy on an concentration of Nug decreace (as it react with water) equilibrium shift forward and reaction rate increase fined Product & 7) Mechanistic step when Na metal is to clonale me e Acid 4 + Na wat + / m2 (Redox) & compound having audic 4 (mo, why etc) Nh3 + Na noon + / m2 Na Nat te Ht té Ž Hz