✦ LIBER ✦

Preparation and Reactions of Some New Fluorinated Keto-stabilised Arsonium Ylides

✍ Scribed by Dr. Raj K. Bansal; Gope Bhagchandani

Book ID: 105352253
Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 257 KB
Volume: 323
Category: Article
ISSN: 1615-4150
DOI: 10.1002/prac.19813230108

No coin nor oath required. For personal study only.

✦ Synopsis

Darstellung und Reaktionen einiger neuer fluorierter ketostabilisierter Arsonium‐Ylide

Zwei neue fluorierte ketostabilisierte Triphenylarsoniumsalze 2a, b werden dargestellt, die bei der alkalischen Zersetzung die entsprechenden neuen Arsoniumylide 3a, b ergeben. Bei Zugabe von Perchlorsäure entstehen daraus die Perchlorate 4a, b.

Bei der Reaktion der Ylide 3a, b mit aromatischen Aldehyden entstehen in hohen Ausbeuten die Fluorchalcone 5a–e, 6a–c ohne nennenswerte Epoxidbildung. Zwei neue fluorierte Diketoarsoniumylide 7a, b werden durch Acylierung der Monoketoarsoniumylide dargestellt. Die Verbindungen sind durch Elementaranalysen, IR‐ und NMR‐Spektroskopie belegt.

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