67. Which reaction sequence is required to accomplish the following transformation? (A) 1. LiAlH4 2.
68. Which reaction sequence is required to accomplish the following transformation?OO? I. heat II. N
69. Which one of the following reactions would give the product as it is planned?(A) (B) (C) (D) (E)
73. Which of the following series of synthetic steps could be used to carry out the transformation s
77. How to prepare aspirin from phenol? (A) 1. NaOH, CO2 2. H3O 3. Ac2O(B) 1. CH3COCl, AlCl3 2. NaNO