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ALD00506

Sigma-Aldrich

Yu Borylation Ligand

≥95%

Synonym(s):

2,4-dimethoxyquinoline, Montanine

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About This Item

Empirical Formula (Hill Notation):
C11H11NO2
CAS Number:
40335-00-0
Molecular Weight:
189.21
MDL number:
MFCD27950422
UNSPSC Code:
41116155
PubChem Substance ID:
329772696
NACRES:
NA.22

Assay

≥95%

form

powder

reaction suitability

reagent type: catalyst
reagent type: ligand
reaction type: C-H Activation

SMILES string

COC1=CC(OC)=NC2=CC=CC=C21

InChI

1S/C11H11NO2/c1-13-10-7-11(14-2)12-9-6-4-3-5-8(9)10/h3-7H,1-2H3

InChI key

XSZBLRGKCBUWRJ-UHFFFAOYSA-N

General description

Yu Borylation Ligand, also referred to as 2,4-dimethoxyquinoline, has been developed by Professor Jin-Quan Yu and coworkers. 2,4-dimethoxyquinoline can be prepared by reacting 2,4-dichloroquinoline with sodium methoxide.

Application

The Yu Borylation Ligand in tandem with bis(pinacolato)diboron (Aldrich 473294) under palladium catalysis can promote direct borylation of C(sp3)-H bonds. Yu and coworkers have displayed this on both alanine-derived amides and cyclopropanes with directing group assistance from the Yu-Wasa Auxiliary (Aldrich 791806).
Yu Borylation Ligand (2,4-Dimethoxyquinoline) may be used as a starting reagent in the synthesis of 2,4 -dimethoxy-3-(3methylbut-2-enyl)quinoline and 4-methoxy-1H-quinolin-2-one. It may also be used in the preparation of isoprenyl derivatives.

Other Notes

Ligand-Promoted Borylation of C(sp3)-H Bonds with Palladium(II) Catalysts

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H319,H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Regioselective synthesis and biological evaluation of novel bis (2-chloroquinolines).
Rajesh K, et al.
Research on Chemical Intermediates, 39(9), 4259-4267 (2013)
Keith Jones et al.
Organic & biomolecular chemistry, 1(24), 4380-4383 (2003-12-20)
The synthesis of the quinoline alkaloid atanine 6, by selective demethylation of the 2,4-dimethoxyquinoline 11 is presented. An alternative demethylation utilising a thiolate anion leads to the regioisomeric 4-hydroxyquinoline 13.
Ultrasound-promoted synthesis of novel 2-chloroquinolin-4-pyrimidine carboxylate derivatives as potential antibacterial agents.
Balaji GL, et al.
Research on Chemical Intermediates, 39(4), 1807-1815 (2013)
Quinoline alkaloids. Part XIII. A convenient synthesis of furoquinoline alkaloids of the dictamnine type.
Collins JF, et al.
Journal of the Chemical Society. Perkin Transactions 1, 94-97 (1973)

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