Synthesis of Symmetric and Nonsymmetric Ni II  Thiophosphinito PECSP (E = S, O) Pincer Complexes and Their Applications in Kumada Coupling under Mild Conditions | Zendy

Hasche Patrick | Zendy; Joksch Markus | Zendy; Vlachopoulou Georgia | Zendy; Agarwala Hemlata | Zendy; Spannenberg Anke | Zendy; Beweries Torsten | Zendy

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Synthesis of Symmetric and Nonsymmetric Ni II Thiophosphinito PECSP (E = S, O) Pincer Complexes and Their Applications in Kumada Coupling under Mild Conditions

Author(s) -

Hasche Patrick,

Joksch Markus,

Vlachopoulou Georgia,

Agarwala Hemlata,

Spannenberg Anke,

Beweries Torsten

Publication year - 2018

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.201701442

Subject(s) - chemistry , pincer movement , pincer ligand , ligand (biochemistry) , medicinal chemistry , halide , aryl , catalysis , bromide , coupling reaction , stereochemistry , inorganic chemistry , organic chemistry , biochemistry , alkyl , receptor

The reaction of 1,3‐dimercaptobenzene with i Pr 2 PCl in the presence of the base NaH, furnishes the symmetric ligand [C 6 H 4 ‐1,3‐(SP i Pr 2 ) 2 ] ( 1a ). The direct reaction of this ligand as well as of the literature‐known nonsymmetric ligand [C 6 H 4 ‐1‐(SP i Pr 2 )‐3‐(OP i Pr 2 )] ( 1b ) with NiCl 2 affords the symmetric bis(thiophosphinito) PSCSP pincer complex [{C 6 H 3 ‐2,6‐(SP i Pr 2 ) 2 }NiCl] ( 2a ) as well as the phosphinito–thiophosphinito POCSP pincer complex [{C 6 H 3 ‐2‐(SP i Pr 2 )‐6‐(OP i Pr 2 )}NiCl] ( 2b ). Both complexes were fully characterised and their catalytic performance in Kumada coupling of aryl halides and p ‐tolylmagnesium bromide under mild conditions was evaluated.

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