Tetrahedron letters

Low temperature ketene preparations using nitrosyltetracarbonylchromium (-II) anion

AP Masters, TS Sorensen

Index: Masters, A. P.; Sorensen, T. S. Tetrahedron Letters, 1989 , vol. 30, # 43 p. 5869 - 5872

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Citation Number: 12

Abstract

Abstract Methylene and cyclopropyl ketenes can be generated at− 100 C by the dehalogenation of α-bromoacylhalides using nitrosyltetracarbonylchromium (-II) anion. This facilitates the trapping of these ketenes with more stable ketenes to give mixed ketene dimers.

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