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: purchase@heterocycles.com

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

Paper | Regular issue | Vol 26, No. 6, 1987, pp.1541-1548
Published online, 1st January, 1970
DOI: 10.3987/R-1987-06-1541
Synthesis of 3-(1’,1’-Dimethylallyl)coumarins: Gravelliferone, Chalepin and Rutamarin

Guillermo M. Massanet, Enrique Pando, Francisco Rodríguez-Luis, and Javier Salvá

*Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, Apartado 40, Puerto Real (Cádiz), Spain

Abstract

The 3-(1’,1’-dimethylallyl)coumarins chalepin (2), rutamarin (3) and gravelliferone (4) have been synthesized from umbelliferon (7) via Claisen and Cope rearrangements of 3’,3’-dimethylallyl ethers of 6-(3’,3’-dimethylallyl)umbelliferon with and without an iodine atom as blocking group at C-8.