Organometallic Reactions in Aqueous Media. Indium- and Zinc-Mediated Allylation of Sulfonimines<sup>1</sup>
作者:Wenshuo Lu、Tak Hang Chan
DOI:10.1021/jo0009898
日期:2000.12.1
effectively allylated to the corresponding homoallylic sulfonamides with allylic bromides promoted by indium or zinc. The solvent used can be water, THF, or a mixed aqueous THF solvent. The regioselectivity and stereoselectivity of the reaction were studied.
Oxidative imination of toluenes catalyzed by Pd–Au/silica gel under mild reaction conditions
作者:Xinjiang Cui、Feng Shi、Youquan Deng
DOI:10.1039/c2cc31438j
日期:——
A PdâAu/SiO2 catalyst was prepared for the oxidative imination of toluenes with up to 99% yields in the absence of dehydrating agents under mild conditions. Nanoparticles with a PdO layer and PdOâAu core may be the active structure for the reaction.
Solvent-free synthesis of N-sulfonyl imines using WCl6 as a novel, highly efficient and reusable catalyst
作者:Mohammad Ali Zolfigol、Mahsa Tavasoli、Ahmad Reza Moosavi-Zare、Parastoo Arghavani-Hadi、Abdolkarim Zare、Vahid Khakyzadeh
DOI:10.1039/c3ra40681d
日期:——
WCl6 was used as a novel, efficient and reusablecatalyst for the preparation of N-sulfonyl imines via the condensation of sulfonamides with aldehydes as well as isatin under solvent-free conditions. The turn-over frequency (TOF) value of the catalyst is several times higher than the previously reported catalysts. Clean reaction, simple purification, short reaction time and high yield are some other
Agent for lightening keratinic fibers, particularly human hair, wherein the agent contains, in a cosmetic carrier, at least one oxidizing agent chosen from hydrogen peroxide and/or a solid addition product thereof with organic or inorganic compounds, and at least one sulfonimine of formula (I)—
Preparation of Unsaturated Aminonitriles from the Aza-Morita-Baylis-Hillman Reactions of Aldimines with Penta-2,4-dienenitrile
作者:Thomas Back、Kristen Clary
DOI:10.1055/s-2007-990886
日期:2007.12
mines undergo facile aza-Morita-Baylis-Hillman reactions with penta-2,4-dienenitrile in anhydrous DMF in the presence of catalytic 3-hydroxyquinuclidine and methanol to afford the corresponding unsaturated aminonitriles.