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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 25, 1995 - Issue 4
152
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Original Articles

Dichotomous Reactivity of PCl5 and PBr5 Toward Cyclic Ketones: A One-Step Preparation of 1,1,2-Trichlorocycloalkanes

, , , , , , & show all
Pages 485-501 | Received 30 Jun 1994, Published online: 23 Sep 2006
 

Abstract

Small-ring cyclic ketones react with excess PCl5 in CCl4 (reflux, 1-3 d) to give the corresponding 1,1,2-trichlorocycloalkanes, but react with PBr5 to give ketones brominated in the α-positions.

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