期刊
TETRAHEDRON
卷 73, 期 17, 页码 2447-2454出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2017.03.027
关键词
beta-O-4 lignin model compounds; C-O bond cleavage; Electrochemical cleavage; Indirect electrolysis
资金
- National Natural Science Foundation of China [21472011]
- National Key Research and Development Program [2016YFD0400801]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1240194] Funding Source: National Science Foundation
The electrochemically oxidative cleavage of lignin beta-O-4 model compounds mediated by iodide ion has been studied. The results indicate that electrolytic conditions play a predominant role in determining the distribution of cleavage products. The preparative-scale electrolysis proceeds in a simple undivided cell, employing a catalytic amount of Nal as the redox mediator and supporting electrolyte in methanol. Under these conditions, the C-beta-O bond is selectively cleaved with 2,2-dimethoxy-2-arylacetaldehyde being the main product. In some cases, the reaction gives a good yield of cleavaged products. The results further demonstrate that the indirect electrolysis mediated by halide is a versatile approach for chemical transformation. (C) 2017 Elsevier Ltd. All rights reserved.
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