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R. Cella and H. A. Stefani, “Ultrasound in Heterocycles Chemistry,” Tetrahedron, Vol. 65, No. 13, 2009, pp 2619- 2649. doi:10.1016/j.tet.2008.12.027

has been cited by the following article:

• TITLE: Ultrasonically Assisted Regioselective Nitration of Aromatic Compounds in Presence of Certain Group V and VI Metal Salts

  AUTHORS: Sariah Sana, Kamatala Chinna Rajanna, Kancharla Rajendar Reddy, Muddam Bhooshan, Marri Venkateswarlu, Mukka Satish Kumar, Kusampally Uppalaiah

  KEYWORDS: Ultrasonically Assisted; Regioselective Nitration; Group V and VI Metal Salts; Reduction in Reaction Times

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.2 No.3, August 20, 2012

  ABSTRACT: Ultrasonically assisted nitration reactions (USANR) with anilides, moderately activated and non-activated aromatic compounds underwent smoothly and afforded good yields of products with high regio selectivity. Observed longer reaction times (6 - 8 hrs.) in metal catalyzed reactions reduced to (1 - 2 hrs.) under sonication. When ortho position is blocked para derivatives are obtained, and ortho nitro products are obtained when para position is blocked. In case of USANR of aromatic carbonyl and related compounds the effect of sonication is much more effective. The reactions could be completed only in few minutes.