Rancan, E., Aricò, F., Quartarone, G., Ronchin, L., Tundo, P. and Vavasori, A. (2014) Self-Catalyzed Direct Amidation of Ketones: A Sustainable Procedure for Acetaminophen Synthesis. Catalysis Communications, 54, 11-16.
http://dx.doi.org/10.1016/j.catcom.2014.05.007

has been cited by the following article:

• TITLE: Low Environmental Load Process for the Beckmann Rearrangement of Cycloalkanone Oximes by Brønsted Acid Catalyst with Cobalt Salts

  AUTHORS: Hidetoshi Yamamoto, Masahiro Komeda, Ayana Ozaki, Michinori Sumimoto, Kenji Hori, Tsunemi Sugimoto

  KEYWORDS: Beckmann Rearrangement, Cycloalkanone Oximes, Lactam, Cobalt Catalysts, Brønsted Acids

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.5 No.3, August 21, 2015

  ABSTRACT: Beckmann rearrangements of oximes to lactams often require harsh conditions and/or the use of large amounts of acid catalyst. To reduce the amount of Bronsted acid required, and to avoid the formation of a large amount of undesirable byproducts under mild reaction conditions, a low environmental load process was developed. Beckmann rearrangements of cyclohexanone oxime and cyclooctanone oxime were achieved using a combination of a Bronsted acid and cobalt tetra-fluoroborate hexahydrate. Various Bronsted acid catalysts (10 - 20 mol%) were used to obtain the corresponding lactams in high yields at 80℃.