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.

Review | Regular issue | Vol 104, No. 5, 2022, pp.843-853
Published online, 9th February, 2022
DOI: 10.3987/REV-22-978
Applications of Sulfated Tin Oxide (STO) in Organic Synthesis - from 2016 to 2021

Narsimhaswamy Dubasi and Ravi Varala*

*Scrips Pharma, Mallapur-500076, Hyderabad, Telangana, India


In this mini-review, authors have briefed about the applications of sulfated tin oxide (STO) as bifunctional catalyst in various C-C, C-hetero bond formations. Synthesis of biologically relevant pyranoquinolines, benzimidazoles, benzodiazepines, fully substituted pyridines, dihydropyridines and isoxazoles were performed by heterogeneous recyclable and reusable solid acid catalyst, STO. In addition, methodologies such as N-Boc protection of amines, production of renewable less viscous, high-density fuel molecules from α-pinene, selective production of MeCl from CH4, esterification, tert-butylation and conversion of glucose into value added 5-hydroxymethylfurfural, were established by using STO as catalyst.