Water-soluble superbulky (η6-p-cymene) ruthenium(ii) amine: an active catalyst in the oxidative homocoupling of arylboronic acids and the hydration of organonitriles

Nirmala, Muthukumaran and Adinarayana, Mannem and Ramesh, Karupnaswamy and Maruthupandi, Mannarsamy and Vaddamanu, Moulali and Raju, Gembali and G, Prabusankar (2018) Water-soluble superbulky (η6-p-cymene) ruthenium(ii) amine: an active catalyst in the oxidative homocoupling of arylboronic acids and the hydration of organonitriles. New Journal of Chemistry, 42 (18). pp. 15221-15230. ISSN 1144-0546

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Abstract

A phosphine free water-soluble superbulky amine-ruthenium-arene complex (2) encompassing 2,6-bis(diphenylmethyl)-4-methylaniline was synthesised in good yield. 2 was characterized by FT-IR, 1H NMR, and 13C NMR spectroscopies, TGA and elemental analyses. The structure of 2 was confirmed by a single-crystal X-ray diffraction study. The ruthenium centre in 2 adopts the pseudo-octahedral geometry due to the η6-p-cymene ring and bulky aniline ligand along with two chloro groups. Besides, complex 2 was efficaciously employed as a catalyst in the hydration of organonitriles to amides. This reaction proceeds efficiently for a wide range of substrates in an environmentally benign medium and is an economically reasonable synthetic route to amides in good yields. In addition, 2 acts as an excellent catalyst in the oxidative homocoupling of arylboronic acids in water. A range of arylboronic acids undergo a homocoupling reaction in the presence of catalyst 2 to yield symmetrical biaryls in reasonable to good yields.

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IITH Creators:
IITH CreatorsORCiD
G, Prabusankarhttp://orcid.org/0000-0003-1772-135X
Item Type: Article
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 09 Oct 2018 10:16
Last Modified: 18 Feb 2019 06:11
URI: http://raiith.iith.ac.in/id/eprint/4477
Publisher URL: http://doi.org/10.1039/c8nj03715a
OA policy: http://www.sherpa.ac.uk/romeo/issn/1144-0546/
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