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.

Review | Regular issue | Vol 96, No. 4, 2018, pp.595-639
Published online, 28th February, 2018
DOI: 10.3987/REV-17-879
4,5-Dihydro-1H-tetrazoles — 5-Alkyl/Aryl and 5-Alkylidene Derivatives

Dietrich Moderhack*

*Institute of Medicinal and Pharmaceutical Chemistry, Technical University, Braunschweig, Beethovenstrasse 55, D-38106, Germany

Abstract

Nine types of 5-alkyl/aryl- and 5-alkylidene-4,5-dihydro-1H-tetrazoles (AH) are reviewed in this article. Besides their synthesis and chemical behaviour, tautomerism of representatives having electron-withdrawing substituents (E, F) as well as polarization of the semicyclic double bond of the types (CH) are of interest.