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.

Communication | Regular issue | Vol 16, No. 6, 1981, pp.955-958
Published online, 1st January, 1970
DOI: 10.3987/R-1981-06-0955
A Convenient Synthesis of 2,2-Dimethylchromenes from 2,2-Dimethylchromanones

Masao Tsukayama,* Tsukasa Sakamoto, Tokunaru Horie, Mitsuo Masumura, and Mitsuru Nakayama

*Department of Chemical Science and Technology, Faculty of Engineering, University of Tokushima, Minamijosanjima-cho, Tokushima 770-8506, Japan

Abstract

2,2-Dimethylchromanones were very easily reduced to the corresponding alcohols by sodiun borohydride-palladium chloride, and the alcohols were converted into the corresponding 2,2-dimethylchromenes by dehydration with potassium hydrogen-sulfate in high yields based on 2,2-dimethylchromanones.