Write the structural formula of the organic product for the given reaction between an alkyne and an alkyl halide. The alkyne group is shown and should be entered as "CC" without the triple bond. Enter C before associated H atoms (e.g., CH3CH2CH₂OCHCHCH3). CH3CH2CH2CCH 1. NaNH, 2. CH,CH,CH,Br

6. Complete the following reaction scheme (g) CH H3C. 1) 9-BBN CH 2) H-О, NaOH (h) H20, H,SO4. HØSO4 (i) 1) BH3 2) H2O,, NaOH

HW 10# 1 I need help with the last part (Part 3)

HW 11#17

C D and F please

HW 10 #4

Heck reactions take place with alkynes as well as alkenes. The following conversion involves an intramolecular Heck reaction followed by an intermolecular Heck. Work out the reaction sequence on a separate sheet of paper, and then draw the structure of the palladium-containing intermediate A. 1% mol Pd(OAc)₂2 CO₂Me 4% mol Ph P CH₂CN A (1 ring) C (2 rings) (2 rings) • Consider E/Z stereochemistry of alkenes. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. • Use R1 to represent the palladium complex. The R group tool is located in the charges and lone pairs drop-down menu. 0- ✪ Sn [F MeO₂C

Draw the structure(s) of the major organic product(s) of the following reaction. CH3 O N-C=C CH3 -8-c CH3-C-CI 1. in ether 2. NaHCO3/H₂O

Describe a sequence of reactions by which 2-hexyne can be prepared from acetylene while minimizing the number of steps required. O 1. NANH2; 2. CH3CH2CH2Br; 3. NaNH2; 4. CH3B1 O 1. NANH2: 2. CH3Br; 3. CH3CH2CH2B1; O 1. NANH2; CH3Br; 3. NANH2; 4. CH3CH2CH2B O A or B O A or C

Please answer parts i and j