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 96, No. 10, 2018, pp.1786-1794
Published online, 22nd October, 2018
DOI: 10.3987/COM-18-13974
HBr-Promoted Sulfenylation of Pyrazolones and 4-Hydroxycoumarins with N-(Organothio)succinimides

Hongai Jin, Wangyang Wang, Zhaohua Yan,* Rongxing Zhang, Mingchuang He, and Sen Lin*

*College of Chemistry, Nanchang University, No. 999, Xuefu Rd. 330031, China


A convenient, effective and metal-free method for the synthesis of C-4 sulfenylated pyrazolones via HBr-promoted sulfenylation of pyrazolones with N-(organothio)succinimides as sulfur sources was developed. The method can be extended to apply for substrates 4-hydroxycoumarins. A series of C-4 sulfenylated pyrazolones and C-3 sulfenylated 4-hydroxycoumarins were smootly synthesized in good to excellent yields.