192387-14-7Relevant articles and documents
Carbonyl allylation of aldehydes and ketones with allylic chlorides catalyzed by immobilization of palladium in MCM-41
Zhao, Hong,Peng, Jian,Xiao, Ruian,Hao, Wenyan,Cai, Ming-Zhong
experimental part, p. 2030 - 2034 (2011/06/19)
The heterogeneous carbonyl allylation of aldehydes and ketones with allylic chlorides was achieved in DMF using SnCl2 as reducing agent at 25-40 °C in the presence of a 3-(2-aminoethylamino)propyl-functionalized MCM-41-immobilized palladium(II) complex [MCM-41-2N-Pd(II)], yielding a variety of homoallylic alcohols in good to high yields. This heterogeneous palladium catalyst exhibited higher activity than (N-propylethylenediamine)PdCl 2 and can be recovered and recycled by a simple filtration of the reaction solution and used for at least 5 consecutive trials without any decreases in activity.
Synthesis of chromanones: A novel palladium-catalyzed Wacker-type oxidative cyclization involving 1,5-hydride alkyl to palladium migration
Zhang, Zuhui,Pan, Chongfeng,Wang, Zhiyong
, p. 4686 - 4688 (2008/10/09)
A series of 2-methylchromanone derivatives have been prepared by using a novel palladium-catalyzed Wacker-type oxidative cyclization, in which a 1,5-hydride alkyl to palladium migration and a direct chirality transfer were involved. The Royal Society of Chemistry.
A new and efficient synthesis of substituted 2-hydroxymethyl-2-methyl-2H-chromenes
Goujon,Zammattio,Pagnoncelli,Boursereau,Kirschleger
, p. 322 - 324 (2007/10/03)
A new and efficient three step procedure for the synthesis of functionalized 2H-chromenes 1 is described, starting from commercially available salicylaldehydes 2 and 2-methylpropenyl-magnesium chloride 3, which involves catalytic acid-mediated intramolecular cyclization of phenolic epoxide 5 as the key step.