Asymmetric Access to Boryl-Substituted Vicinal Aminoalcohols through Cu-Catalyzed Reductive Coupling

Area of Science:

• Organic Chemistry
• Catalysis
• Synthetic Methodology

Background:

• Chiral 1,2-aminoalcohols are crucial building blocks in organic synthesis.
• Developing efficient methods for their enantioselective synthesis is highly desirable.
• Accessing diverse substitution patterns from common precursors remains a challenge.

Purpose of the Study:

• To develop a novel Cu-catalyzed enantioselective borylative aminoallylation reaction.
• To utilize N-substituted allenes for the synthesis of boryl-substituted 1,2-aminoalcohol synthons.
• To enable the diversification of these synthons into chiral heteroatom-rich organic compounds.

Main Methods:

• Copper-catalyzed enantioselective borylative aminoallylation.
• Reaction of aldehydes with N-substituted allenes.
• Synthesis of boryl-substituted 1,2-aminoalcohol intermediates.

Main Results:

• Successful development of the Cu-catalyzed enantioselective borylative aminoallylation.
• High diastereoselectivity and enantioselectivity achieved in the formation of 1,2-aminoalcohol products.
• Access to various substitution patterns of chiral 1,2-aminoalcohols from readily available starting materials.

Conclusions:

• The developed methodology provides an efficient route to valuable chiral 1,2-aminoalcohol synthons.
• This approach allows for facile diversification into complex chiral organic molecules.
• The reaction offers a versatile platform for accessing diverse chiral heteroatom-rich compounds.