Facile synthesis of 3-(diarylmethylene) isobenzofuranones, 4-(diarylmethyl)-1 (2H)-phthalazinones and diarylmethanes
S Das, R FrÖhlich, A Pramanik
Index: Das, Suven; Froehlich, Roland; Pramanik, Animesh Journal of Chemical Research, 2006 , # 2 p. 84 - 86
Full Text: HTML
Citation Number: 0
Abstract
Reflux of 2, 2-diaryl-1, 3-indanediones in ethyleneglycol with a catalytic amount of triethylamine affords 3-(diaryl-methylene) isobenzofuranones in very good yields. The latter produces 4-diarymethyl-1 (2H)-phthalazinones under reflux in hydrazine hydrate (99%), and diarylmethanes upon stirring in ethylenediamine.
Related Articles:
Reduction of Carbonyl to Methylene: Organosilane-Ga (OTf) 3 as an Efficient Reductant System
[Surya Prakash; Do, Clement; Mathew, Thomas; Olah, George A. Catalysis Letters, 2011 , vol. 141, # 4 p. 507 - 511]
[Wang, Xing; Liu, Lian-Hua; Shi, Jin-Hua; Peng, Ji; Tu, Hai-Yang; Zhang, Ai-Dong European Journal of Organic Chemistry, 2013 , # 30 p. 6870 - 6877]
[Kale; Singh Journal of Molecular Catalysis A: Chemical, 2002 , vol. 184, # 1-2 p. 399 - 411]
New Compounds. p, p Dichlorobenzophenone Hydrazone
[Grummitt; Jenkins Journal of the American Chemical Society, 1946 , vol. 68, p. 914]
Preparation of dihalobenzophenones by oxidation under phase-transfer-catalysis conditions
[Halpern, Marc; Lysenko, Zenon Journal of Organic Chemistry, 1989 , vol. 54, # 5 p. 1201 - 1203]