McCann, Malachy and Maddock, Kenneth (1995) Photooxidation of (±)-2-butanol to 2-butanone using polyoxomolybdate(VI) catalysts: A clean and high yield route. Polyhedron, 14 (20-21). pp. 2919-2923. ISSN 0277-5387

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Abstract

No colour change occurred when a colourless, aqueous solution of the β-octamolybdate(VI) salt [Et3NH]4[Mo8O26] (1) was irradiated with UV light (λ = 254 nm). Similarly, an irradiated solution of 1 in a water: (±)-2-butanol mixture also remained colourless and no gaseous hydrogen evolved. In contrast, aqueous solutions of the alkali and alkaline earth metal containing salts [Et3NH]3[NaMo8O26] (2) and [Et3NH]2[Mg(H2O)6Mo8O26]·2H2O (3) both turned blue (γmax= 725 nm) when irradiated with UV light. Irradiated solutions of 2 and 3 in a water: (±)-2-butanol mixture also turned blue, and 2-butanone along with hydrogen gas were produced in almost quantitative yield over a 24 h reaction period. Likewise, an aqueous solution containing 1 and excess of an alkali or alkaline earth metal chloride salt (e.g. NaCl, KCl, MgCl2, CaCl2 or SrCl2) also catalysed the photooxidation of (±)-2-butanol. Product yields were again ⩾ 90%.

Item Type:	Article
Additional Information:	Cite as: Malachy McCann, Kenneth Maddock, Photooxidation of (±)-2-butanol to 2-butanone using polyoxomolybdate(VI) catalysts: A clean and high yield route, Polyhedron, Volume 14, Issues 20–21, 1995, Pages 2919-2923, ISSN 0277-5387, https://doi.org/10.1016/0277-5387(95)00180-Z.
Keywords:	Photooxidation; (±)-2-butanol; 2-butanone; polyoxomolybdate(VI) catalysts;
Academic Unit:	Faculty of Science and Engineering > Chemistry
Item ID:	14693
Identification Number:	https://doi.org/10.1016/0277-5387(95)00180-Z
Depositing User:	Dr. Malachy McCann
Date Deposited:	11 Aug 2021 14:26
Journal or Publication Title:	Polyhedron
Publisher:	Elsevier
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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