Which of the following indicated C—C bonds is (are) the longest?

Provide a stepwise synthesis for the following.      he answer should be entered as in the following example: (this is an example!) 1. NaNH2   2. CH3CH2Br   3. H2, Lindlar’s Cat.    4. BH3, THF   5. H2O2, NaOH                          (Keep three spaces between each step) All chemicals and reagents  structures should be correct and with the proper sequence. No partial credit.

Which of the following is antiaromatic?

What is the structure of a compound of molecular formula C10H14O2 that shows a strong IR absorption at 3150 and 2850 cm-1 and gives the following 1H NMR absorptions: 1.4 (triplet, 6H); 4.0 (quartet, 4H); and 6.8 (multiplet, 4H) ppm?

Identify the cumulated diene.

What is the structure for 4-amino-2-bromophenol?

An unknown compound X has the molecular formula C10H11O2Br. Compound X shows a strong absorption in its IR spectrum at 1700 cm-1. The 1H NMR spectral data for compound X is given below. What is the structure of compound X?

What is the IUPAC name of the following compound?    

How many peaks are in the  13C NMR spectrum of o-dichlorobenzene?

Identify the products of a reaction under kinetic control.