Diastereomeric resolution of rac -1,1′-bi-2-naphthol boronic acid with a chiral boron ligand and its application to simultaneous synthesis of (R)- and (S)-3,3′-disubstituted 1,1′-bi-2-naphthol derivatives

Chun Young Lee, Cheol-Hong Cheon

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A new concept of diastereomeric resolution has been developed where a boronic acid functionality was employed as (1) a diastereomeric resolving group with a chiral boron ligand and (2) a masked functional group for further transformation thereafter. This new diastereomeric resolution method was successfully applied to the preparation of both (R)- and (S)-3,3′- disubstituted 1,1′-bi-2-naphthol (BINOL) derivatives in a step-ecomonical manner. Racemic BINOL boronic acid reacted with a commercially available pinene-derived iminodiacetic acid as a chiral boron ligand to generate the two diastereomers in quantitative yields over a gram-scale quantity. After the removal of the chiral boron ligand from the diastereomers under mild conditions, the subsequent Suzuki coupling reaction of the resulting chiral BINOL boronic acids with aryl halides provided a series of both (R)- and (S)-BINOL derivatives in good yields. Further, both resulting diastereomers could be directly applied to the Suzuki coupling reaction without the removal of the chiral ligand.

Original languageEnglish
Pages (from-to)7086-7092
Number of pages7
JournalJournal of Organic Chemistry
Volume78
Issue number14
DOIs
Publication statusPublished - 2013 Jul 19

Fingerprint

Boronic Acids
Boron
Ligands
Derivatives
Functional groups
2-naphthol

ASJC Scopus subject areas

  • Organic Chemistry

Cite this

@article{4f00f498a39d4622805e9f641627deca,
title = "Diastereomeric resolution of rac -1,1′-bi-2-naphthol boronic acid with a chiral boron ligand and its application to simultaneous synthesis of (R)- and (S)-3,3′-disubstituted 1,1′-bi-2-naphthol derivatives",
abstract = "A new concept of diastereomeric resolution has been developed where a boronic acid functionality was employed as (1) a diastereomeric resolving group with a chiral boron ligand and (2) a masked functional group for further transformation thereafter. This new diastereomeric resolution method was successfully applied to the preparation of both (R)- and (S)-3,3′- disubstituted 1,1′-bi-2-naphthol (BINOL) derivatives in a step-ecomonical manner. Racemic BINOL boronic acid reacted with a commercially available pinene-derived iminodiacetic acid as a chiral boron ligand to generate the two diastereomers in quantitative yields over a gram-scale quantity. After the removal of the chiral boron ligand from the diastereomers under mild conditions, the subsequent Suzuki coupling reaction of the resulting chiral BINOL boronic acids with aryl halides provided a series of both (R)- and (S)-BINOL derivatives in good yields. Further, both resulting diastereomers could be directly applied to the Suzuki coupling reaction without the removal of the chiral ligand.",
author = "Lee, {Chun Young} and Cheol-Hong Cheon",
year = "2013",
month = "7",
day = "19",
doi = "10.1021/jo400928q",
language = "English",
volume = "78",
pages = "7086--7092",
journal = "Journal of Organic Chemistry",
issn = "0022-3263",
publisher = "American Chemical Society",
number = "14",

}

TY - JOUR

T1 - Diastereomeric resolution of rac -1,1′-bi-2-naphthol boronic acid with a chiral boron ligand and its application to simultaneous synthesis of (R)- and (S)-3,3′-disubstituted 1,1′-bi-2-naphthol derivatives

AU - Lee, Chun Young

AU - Cheon, Cheol-Hong

PY - 2013/7/19

Y1 - 2013/7/19

N2 - A new concept of diastereomeric resolution has been developed where a boronic acid functionality was employed as (1) a diastereomeric resolving group with a chiral boron ligand and (2) a masked functional group for further transformation thereafter. This new diastereomeric resolution method was successfully applied to the preparation of both (R)- and (S)-3,3′- disubstituted 1,1′-bi-2-naphthol (BINOL) derivatives in a step-ecomonical manner. Racemic BINOL boronic acid reacted with a commercially available pinene-derived iminodiacetic acid as a chiral boron ligand to generate the two diastereomers in quantitative yields over a gram-scale quantity. After the removal of the chiral boron ligand from the diastereomers under mild conditions, the subsequent Suzuki coupling reaction of the resulting chiral BINOL boronic acids with aryl halides provided a series of both (R)- and (S)-BINOL derivatives in good yields. Further, both resulting diastereomers could be directly applied to the Suzuki coupling reaction without the removal of the chiral ligand.

AB - A new concept of diastereomeric resolution has been developed where a boronic acid functionality was employed as (1) a diastereomeric resolving group with a chiral boron ligand and (2) a masked functional group for further transformation thereafter. This new diastereomeric resolution method was successfully applied to the preparation of both (R)- and (S)-3,3′- disubstituted 1,1′-bi-2-naphthol (BINOL) derivatives in a step-ecomonical manner. Racemic BINOL boronic acid reacted with a commercially available pinene-derived iminodiacetic acid as a chiral boron ligand to generate the two diastereomers in quantitative yields over a gram-scale quantity. After the removal of the chiral boron ligand from the diastereomers under mild conditions, the subsequent Suzuki coupling reaction of the resulting chiral BINOL boronic acids with aryl halides provided a series of both (R)- and (S)-BINOL derivatives in good yields. Further, both resulting diastereomers could be directly applied to the Suzuki coupling reaction without the removal of the chiral ligand.

UR - http://www.scopus.com/inward/record.url?scp=84880557695&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880557695&partnerID=8YFLogxK

U2 - 10.1021/jo400928q

DO - 10.1021/jo400928q

M3 - Article

VL - 78

SP - 7086

EP - 7092

JO - Journal of Organic Chemistry

JF - Journal of Organic Chemistry

SN - 0022-3263

IS - 14

ER -