Complete the Short Synthesis Below by Providing the Necessary Reagents

Q21: When CH₃CH₂CHO reacts with PhNHNH₂ under conditions

Q43: What common names for 1,4-butanediamine and 1,5-pentanediamine

Q74: Which of the following chloropyridines readily undergo

Q87: Provide the structure of the major organic

Q88: Provide the structure of the major organic

Q89: A three-carbon, nitrogen-containing compound exhibits 3 ¹³C

Q91: Provide the structure of the major organic

Q93: Provide the major organic product of the

Q95: Name the compound shown below. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6198/.jpg"

Q97: Sec-Butylamine is the common name of what