Intramolecular Aldol Condensation

Q. 19. Methyl cyclobutane. --Br2/hv----; ? Explain with structure

Q. structure of4 ethoxy 1, 1 dimethyl cyclohexan

Q. 22. Is there any alpha hydrogen present in CHCl3 ?

Q.

Olefins can be hydrogenated by

1. 

2. Raney Ni and H₂

3. Lindlar's Catalyst and H₂

4. Pt and H₂

Q. 32. What is the exact functioning of LiAlH4 and LiBH4? How does it vary from NaBH4? Is it different for different substrates as such?

Q. The major product of the following reaction

1. 
2. 
3. 
4. 

Q.

The structure of the carbonyl compound P, which gives positive iodoform test undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R, which undergoes intramolecular aldol reaction to give predominantly S.


The structure of the carbonyl compound P is:

1. 
   

2. 

3. 

4. 

Q. 1 2 dimethylcyclohexene in oso4

Q. What is the final major product of the following sequence of reactions?

1. 
2. 
3. 
4. 

Q. the compund formed by raction of CH_2=CH-(CH_2)_2COOH with HBr in presence of peroxide

Q. Which of the following is the strongest base?a. Н2+ b. НСО3- c) H d.) H-