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900920

Sigma-Aldrich

Bis[[diisopropylphosphino]methyl]-4-methyl-pyridine bis(pivaloyloxy)cobalt

95%

Synonym(s):

Chirik cobalt borylation catalyst, JENNY cobalt borylation catalyst, JennyCat

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About This Item

Empirical Formula (Hill Notation):
C30H55CoNO4P2
CAS Number:
2071741-36-9
Molecular Weight:
614.64
UNSPSC Code:
12161600
NACRES:
NA.22

Quality Level

100

Assay

95%

form

powder

reaction suitability

core: cobalt
reagent type: catalyst

mp

>300 °C

SMILES string

CC1=CC(CP(C(C)C)C(C)C)=NC(CP(C(C)C)C(C)C)=C1.O=C(C(C)(C)C)O[Co]OC(C(C)(C)C)=O

Application

Bis[[diisopropylphosphino]methyl]-4-methyl-pyridine bis(pivaloyloxy)cobalt also known as JennyCat is developed in the laboratory of Paul Chirik is an effective cobalt precatalyst for the borylation of aromatic compounds, including diverse heteroarenes, pyridine derivatives, and fluoroarenes.

Other Notes

C(sp2)-H Borylation of fluorinated arenes using an air-stable cobalt precatalyst: electronically enhanced site selectivity enables synthetic opportunities

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Jennifer V Obligacion et al.
Journal of the American Chemical Society, 139(7), 2825-2832 (2017-02-01)
Cobalt catalysts with electronically enhanced site selectivity have been developed, as evidenced by the high ortho-to-fluorine selectivity observed in the C(sp

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