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The Gas-Phase Reactions of the Allenyl Anion with CS2, COS and CO2

✍ Scribed by Charles H. DePuy; Veronica M. Bierbaum; Marin S. Robinson; Gustavo E. Davico; Roustam Gareyev

Publisher: Elsevier Science
Year: 1997
Tongue: French
Weight: 828 KB
Volume: 53
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(97)00331-1

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✦ Synopsis

The allenyl anionreacts readily in the gas phase with CS2and COS to form the thioketenylanion. The reactinninvolvesa cnmplexseriesof cyclizationand riryg-opening reactionsin whichthe centralcarbonofallene mri the carbonof the neutralreagentbecomeequivalent. Despitethe complexity,the reactionwith CSZis usefulin determiningthe site of deprotonationof unsymmetricalallenes. The reactionof the allenylanion with CC)?produces only an adduct,becausethe cleavagereactionto the ketenylanionand keteneis endothermic, However,the allcnyl ~ninnis producedif the reactionis carriedout in the reversedirection.101997Elsevier Science Ltd.

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