Answer Happy

Question 1 (30 marks) a. Draw structures and provide systematic (IUPAC) names of all terminal alkynes (5 in total) with (10) molecular formula C6H10. b. Provide structures of missing compounds in the following reaction. No names are required. (10) i. ii. iii. iv. V. vi. NaNH, A vii. viii. ix. CH₂CH₂Br B Li NH3 C D Lindlar catalyst H Br₂ THF c. What is a general formula for cycloalkanes? (1) d. A typical steroid skeleton is shown with the numbering scheme used for this class of compounds. Specify in each case whether the designated substituent is axial or equatorial. (9) Substituent at C1 cis to the methyl groups Substituent at C1 trans to the methyl groups Substituent at C2 trans to the methyl groups Substituent at C3 trans to the methyl groups Substituent at C4 cis to the methyl groups Substituent at C6 trans to the methyl groups Substituent at C7 trans to the methyl groups Substituent at C11 trans to the methyl groups Substituent at C12 cis to the methyl groups C Br₂ THF E 1402-