Question

How does borane exist in THF solution?

• A. As the trimer $B_3{H}_9$
• B. As the complex between borane and THF
• C. As the dimer $B_2{H}_6$
• D. As the monomer $B{H}_3$

Answer 1

The correct option is B As the complex between borane and THF

Borane–tetrahydrofuran is a dipolar bond complex composed of borane and tetrahydrofuran (THF). These solutions are used for reductions and hydroboration reactions that are useful in synthesis of organic compounds

The complex can reduce carboxylic acids to alcohols and is a common route for the reduction of amino acids to amino alcohols.