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.

Report | Regular issue | Vol 9, No. 7, 1978, pp.859-861
Published online, 1st January, 1970
DOI: 10.3987/R-1978-07-0859
Selective Demethylation of Papaverinol

Somsak Ruchirawat,* Suporn Suparlucknaree, and Noojaree Prasitpan

*Department of Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand

Abstract

Compound (II), obtained from synthesis, was found to be identical with the product from the reaction of papaverinol with 90% sulphuric acid. 89% Orthophosphoric acid was found to be the acid of choice for the selective demethylation of papaverinol.