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Annoucement
Obituary
Koji Nakanishi (1925-2019)
Koji Nakanishi (1925-2019)
Professor Koji Nakanishi,
a member of the Honorary Editorial Associates of HETEROCYCLES,
has passed away on March 28, 2019 at the age of 93.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
April 4, 2019
27th ISHC Congress
The 27th ISHC Congress will be held in Kyoto, Japan September from 1 to 6, 2019 at ROHM Theatre Kyoto & Miyakomesse.
For more information see: http://www.cdsympo.com/ishc2019/
January 17, 2019
Call for Contributions
HETEROCYCLES Special Issue Vol. 101 in honor of Professor Kaoru Fuji on 80th Birthday
HETEROCYCLES Special Issue Vol. 101 in honor of Professor Kaoru Fuji on 80th Birthday
On the occasion of Professor Kaoru Fuji's 80th birthday, we are planning to publish a special anniversary issue on January 1, 2020 as Vol. 101. Authors are invited to submit their work to this topical issue.
Authors wishing to submit their manuscript should contact us via e-mail by the end of February 2019. Manuscript should reach us no later than the end of June 2019.
Submission deadline: June 30, 2019
Contact: submit@heterocycles.com
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Communication | Regular issue | Vol 75, No. 8, 2008, pp.1907-1911
Published online, 17th April, 2008■ A Facile One-Pot Synthesis of Benzimidazoles from 2-Nitroanilines by Reductive Cyclization
Published online, 17th April, 2008
DOI: 10.3987/COM-08-11384
■ A Facile One-Pot Synthesis of Benzimidazoles from 2-Nitroanilines by Reductive Cyclization
Zheng Liu, Haihong Li, Qingjie Zhao, and Jingshan Shen
*Shanghai Institute of Materia Medica, The Chinese Academy of Sciences, 319 Yue-Yang Raod, Shanghai 200031, China
Abstract
A facile one-pot process to prepare benzimidazole derivatives is described. Reductive cyclization of a serial of 2-nitroanilines with orthoesters in the presence of Pd/C in methanol at room temperature, which is promoted by a catalytic amount of acetic acid, affords the corresponding benzimidazole derivatives in high yields.
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