33657-50-0Relevant articles and documents
Solvent-free preparation of α,α-dichloroketones with sulfuryl chloride
Tu, Dewei,Luo, Juan,Jiang, Wengao,Tang, Qiang
supporting information, (2021/09/15)
An efficient and facile method is reported for the synthesis of a series of α,α-dichloroketones. The direct dichlorination of methyl ketones and 1,3-dicarbonyls using an excess amount of sulfuryl chloride affords the corresponding gem-dichloro compounds in moderate to excellent yields. Moreover, the protocol features high yields, broad substrate scope, and simple reaction conditions without using any catalysts and solvents.
New, efficient synthesis of α-chloroketones using SiCl 4/urea-hydrogen peroxide or SiCl4/iodosylbenzene reagent systems
El-Ahl, Abdel Aziz S.,Elbeheery, Akram H.,Amer, Fathy A.
experimental part, p. 1508 - 1513 (2011/06/17)
Alkyl aryl ketones on treatment with SiCl4/urea-hydrogen peroxide (UHP) or SiCl4/iodosylbenzne reagent systems afforded -chloroketones in excllent yields, while ketones with higher enol content provide exclusively,-dichloroketones under exceedingly mild conditions. The reaction proceeds via the initial formation of silyl enol ethers. A polarized chlorine intermediate that resulted from the coordination of SiCl4 with the in situ formed trichlorosilyl hypochlorite Cl3SiOCl is thought to be the active chlorinating agent.
OXIDATIVE ADDITION OF ACETYLACETONE TO 1-HEXENE UNDER THE ACTION OF Mn(III) AND Co(III) ACETATES
Vinogradov, M. G.,Dolinko, V. I.,Nikishin, G. I.
, p. 2036 - 2041 (2007/10/02)
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