Question

Question: What alkylborane is formed from hydroboration of each alkene?

Short answer

Answer

Step-by-step solution

Hydroboration

In hydroboration reaction, the hydrogen-boron atom gets added with a double bond, that is, C=C or C=N.

Formation of products

a. The hydroboration of 2-methylprop-1-enegives isobutylborane as shown below:

Formation of product in a

b. The hydroboration of hex-1-enegives hexylborane as shown below:

Formation of product in b

c. The hydroboration of methylenecyclopentane gives (cyclopentylmethyl)borane as shown below:

Formation of product in c