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Farkas, L., Gottsegen, A., Nogradi, M. and Antus, S. (1974) Synthesis of Sophorol, Violanone, Lonchocarpan, Claussequinone, Philenopteran, Leiocalycin, and Some Other Natural Isoflavonoids by the Oxidative Rearrangement of Chalcones with Thallium(III) Nitrate. Journal of the Chemical Society, Perkin Transactions 1, 305-312.
http://dx.doi.org/10.1039/p19740000305

has been cited by the following article:

• TITLE: Process for the Preparation of Chromones, Isoflavones and Homoisoflavones Using Vilsmeier Reagent Generated from Phthaloyl Dichloride and DMF

  AUTHORS: Santosh Kumar Yadav

  KEYWORDS: Phthaloyl Dichloride, Dimethylformamide, Chromones, Isoflavones, Homoisoflavones, BF3·Et2O, Vilsmeier Reagent

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.4 No.4, November 19, 2014

  ABSTRACT: Vilsmeier reagent formed from phthaloyl dichloride and DMF was found to be very effective for converting 2-hydroxyacetophenones, deoxybenzoins and dihydrochalcones into corresponding chromones, isoflavones and homoisoflavones with excellent yield. This method offers significant advantages such as efficiency and mild reaction conditions with shorter reaction time.