223387

Sigma-Aldrich

Nickel(II) chloride hexahydrate

ReagentPlus®

Linear Formula:
NiCl2 · 6H2O
CAS Number:
Molecular Weight:
237.69
MDL number:
PubChem Substance ID:
NACRES:
NA.55

product line

ReagentPlus®

Quality Level

assay

23.0-26.0% Ni basis (EDTA titration)

form

powder or crystals

SMILES string

[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].Cl[Ni]Cl

InChI

1S/2ClH.Ni.6H2O/h2*1H;;6*1H2/q;;+2;;;;;;/p-2

InChI key

LAIZPRYFQUWUBN-UHFFFAOYSA-L

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General description

Nickel(II) chloride hexahydrate is a hydrated nickel salt. Its crystals were monoclinc and crystal structure was investigated by X-ray single crystal method.

Application

Nickel(II) chloride hexahydrate may be employed as a catalyst in the high yield synthesis of tetra-substituted pyrrole derivatives. It may be used for the conversion of tetrahydropyranyl (THP) and tert-butyldimethylsilyl (TBS) ethers to the corresponding hydroxyl compounds.
Nickel(II) chloride hexahydrate may be used as a catalyst in the following processes:
  • Synthesis of tetra-substituted pyrrole derivatives via four-component condensation reaction of aromatic aldehydes, benzylamines, β-ketoesters and nitroalkanes.
  • In combination with 1,2-ethanedithiol for the deprotection of tetrahydropyranyl (THP) and tert-butyldimethylsilyl (TBS) ethers to their corresponding hydroxyl compounds.
  • Synthesis of 3,4-dihydropyrimidinones from aldehydes and β-keto esters via Biginelli condensation.

Packaging

2 kg in poly bottle
25, 500 g in poly bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Target Organs

Lungs

RIDADR

UN3288 - class 6.1 - PG 3 - EHS - RQ - Toxic solid, inorganic, n.o.s., HI: all

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Catalysis of the Biginelli reaction by ferric and nickel chloride hexahydrates. One-pot synthesis of 3, 4-dihydropyrimidin-2 (1H)-ones.
Lu J and Bai Y.
Synthesis, 2002(04), 0466-0470 (2002)
The Crystal Structure of Nickel Chloride Hexahydrate, NiCl2.6H2O.
Mizuno J.
Journal of the Physical Society of Japan, 16(8), 1571-1580 (1961)
A catalytic amount of nickel (II) chloride hexahydrate and 1, 2-ethanedithiol is a good combination for the cleavage of tetrahydropyranyl (THP) and tert-butyldimethylsilyl (TBS) ethers.
Khan AT, et al.
Tetrahedron Letters, 45(52), 9617-9621 (2004)
Synthesis of tetra-substituted pyrroles, a potential phosphodiesterase 4B inhibitor, through nickel (II) chloride hexahydrate catalyzed one-pot four-component reaction.
Khan AT, et al.
Tetrahedron Letters, 53(32), 4145-4150 (2012)
Jenilee Way et al.
Nuclear medicine and biology, 40(3), 430-436 (2013-01-12)
4-[(18)F]Fluorobenzylamine ([(18)F]FBA) is an important building block for the synthesis of (18)F-labeled compounds. Synthesis of [(18)F]FBA usually involves application of strong reducing agents like LiAlH4 which is challenging to handle in automated synthesis units (ASUs). Therefore, alternative methods for the...

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