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.

Short Paper | Regular issue | Vol 87, No. 11, 2013, pp.2343-2350
Published online, 3rd October, 2013
DOI: 10.3987/COM-13-12822
Synthesis of Some Pyrazole-Fused Pyrido[3,2-a]azulenes

Dao-Lin Wang,* Zhe Dong, Qing-Tao Cui, Fei-Fei Yang, and Wei Zhao

*Liaoning Key Laboratory of Synthesis and Application of Functional Compound, College of Chemistry & Chemical Engineering, Bohai University, Jinzhou 121001, China


Facile synthesis of 11H(2H)-4-oxopyrazolo[3’,4’:6,5]pyrido[3,2-a]azulene-10-carboxylates (3) via a domino reaction of 3-(dimethylamino)-2-(2-methoxy-1-ethoxycarbonylazulen-3-oyl)acrylonitrile (1) with hydrazines (2) in moderate to good yields. This reaction provides a new procedure for synthesis of pyridinone-fused azulenes.