Question

Please help with 7 & 8. We are supposed to list and label all reactive features, analyze the reaction between the nucleophile and electrophile, and resolve each reactive situation leading to final product formation. Show stereochemistry if appropriate and relative amounts of products.

7. but-2-vne with 1 equivalence of Cl. but-1-yne with HCI (2 moles of HCI)

Answer 1

ne ernivalnt CHS C-c H,C-CEC-CH but-2 Trans-93-dichlonobut-2-ene (X0 cl 2moles Hel H2-CHCCH H3 CCH--CH3 2,2-dichlocrotbutane Mechamism, stepl: H2C-CHC CH + HI Mac-cu CHea Step 2 H-CH 4½C-C4-CCH Step 3: H2C-CHCCH Hc and Step y: el . CH3 42C-CM2-C Ci