Unsymmetrical Unsaturated Ketones from Lactones and Carboxylic Acids in One Step | Zendy

Giersch Wolfgang | Zendy; Naef Ferdinand | Zendy

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Unsymmetrical Unsaturated Ketones from Lactones and Carboxylic Acids in One Step

Author(s) -

Giersch Wolfgang,

Naef Ferdinand

Publication year - 2004

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.200490154

Subject(s) - chemistry , scope (computer science) , catalysis , manganese , transformation (genetics) , organic chemistry , carboxylic acid , ketone , lactone , vapor phase , programming language , biochemistry , computer science , gene , physics , thermodynamics

A one‐step transformation of γ ‐ and δ ‐(spiro)lactones into γ , δ ‐ and δ , ε ‐unsaturated ketones in the presence of carboxylic acids in the vapor phase at 400° over a supported manganese catalyst is reported for the first time. The scope of this new transformation is exemplified with a series of lactones, and a mechanistic rationale is proposed.

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