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.

Paper | Special issue | Vol 101, No. 2, 2020, pp.461-470
Published online, 16th August, 2019
DOI: 10.3987/COM-19-S(F)29
Formation of Seven-Membered-Ring Fused Bithiophene Derivatives by Nosyl Annulation

Atsunori Mori,* Masayasu Hayashi, Mitsuru Matsuoka, Shiomi Ashida, Yukiko Ito, Kohei Hosokawa, Toyoko Suzuki, Kentaro Okano, Chi-Hsien Wang, and Masaki Horie

*Department of Chemical Science and Engineering, Kobe University, Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan

Abstract

Nosyl annulation of a bithiophene derivative with nosylamide (NsNH2) gives a 5-7-5 fused N, S-heterocyclic compound. The detailed molecular structure of the obtained nosylamide was analyzed by single-crystal X-ray crystallography. The obtained product was transformed into several amines and amides. The CBr bond at the fused heterocycle was also subjected to cross-coupling reactions, where the nosyl group was found to be tolerant.