4435-51-2Relevant articles and documents
Fluoride-Promoted, Dye-Sensitized Photooxidation of Enols
Wasserman, Harry H.,Pickett, James E.
, p. 4695 - 4696 (1982)
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PPh3·HBr-DMSO: A Reagent System for Diverse Chemoselective Transformations
Mal, Kanchan,Kaur, Amanpreet,Haque, Fazle,Das, Indrajit
, p. 6400 - 6410 (2015/06/30)
The broad applicability of the hitherto unexplored reagent combination PPh3·HBr-DMSO is exemplified with multiple highly diverse one-step transformations to synthetically useful building blocks, such as flavones, 4H-thiochromen-4-ones, α-hydroxy ketones, 1,4-naphthoquinones (including vitamin K3), 2-bromo-3-substituted-1H-1-indenones, 2-methylthio-1H-1-indenones, 3-butyne-1,2-dione, and 4-pentene-2,3-diones. The simple and mild reaction conditions make the reagent superior in terms of yield and substrate scope in comparison with the existing alternatives.
Facile synthesis of 1,2,3-tricarbonyls from 1,3-dicarbonyls mediated by cerium(IV) ammonium nitrate
Sivan, Akhil,Deepthi, Ani
supporting information, p. 1890 - 1893 (2014/03/21)
A mild and efficient protocol for the synthesis of vicinal tricarbonyl compounds from β-dicarbonyls in a single step using cerium(IV) ammonium nitrate as a catalytic oxidant is described. Ease of execution, wide substrate scope and the suitability for the synthesis of commercially important compounds like ninhydrin, alloxan and oxoline make this reaction particularly noteworthy.
