Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact:

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Report | Regular issue | Vol 19, No. 12, 1982, pp.2327-2329
Published online, 1st January, 1970
DOI: 10.3987/R-1982-12-2327
Regioselective Functionalisation of the Δα,β-Butenolide Ring via Group IV-B Organometallics

Mariella Fiorenza, Alfredo Ricci, M. Novella Romanelli, Maurizio Taddei, Pasquale Dembech, and Giancarlo Seconi

*CNR, Centro di Studio Sulla Chimica e la Struttura dei Composti Eterociclici e lolo Applicazioni, c/o Dipartimento di Chimica Organica “Ugo Schiff”, Università di Firenze, Via Gino Capponi 9, I-50121 Firenze, Italy


The Δα,β-butenolide ring reacts with amino- and thiosilanes to give 4-substituted γ-butyrolactone and siloxyfuran. The latter undergoes regiospecific functionalisation at the 5 position with benzaldehyde under F- catalysis.