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.

Paper | Regular issue | Vol 104, No. 4, 2022, pp.751-763
Published online, 19th January, 2022
DOI: 10.3987/COM-21-14612
Alicyclic Annulated Triazoles versus Triazinediones by the Reaction of Cyclic Imidates with Methyl 2-Hydrazinyl-2-oxoacetate

Viacheslav Lysenko, Anton Portiankin, Kostiantyn Nazarenko, Kostiantyn Shvydenko, Tetiana Shvydenko, and Aleksandr Kostyuk*

*Organophosphorus, Institute of Organic Chemistry, Murmanska Str.5, 02660, Ukraine


A simple convenient method for synthesis of esters of annulated triazole-3-carboxylic acids and/or 1,2,4-triazine-5,6-dione derivatives was proposed. Heating cyclic imidates with methyl 2-hydrazinyl-2-oxoacetate afforded either the annulated triazoles or the annulated triazinediones depending on the reaction conditions. Under heating at hydrochloric acid 1,2,4-triazine-5,6-diones were transformed into triazoles.