Zhou, Yan; Zhou, Zebiao; Liu, Siqi; Cai, Mingzhong published the artcile< Recyclable palladium-catalyzed cyclocarbonylation between benzyl chlorides and salicylic aldehydes towards coumarins>, Electric Literature of 611-19-8, the main research area is silica immobilized bidentate phosphine palladium complex preparation; salicylic aldehyde aralkyl chloride palladium catalyst cyclocarbonylation; coumarin preparation.
A novel and practical route to coumarin derivatives was developed via the heterogeneous Pd-catalyzed carbonylative reaction and subsequent intramol. condensation process starting from com. easily available benzyl chlorides and salicylic aldehydes. Reactions were performed in the existence of 2 mol% of an SBA-15-immobilized bidentate phosphine palladium complex [SBA-15-P,P-PdCl2] in dioxane at 110°C with Et3N as base under 10 bar of CO to afford a wide range of coumarin derivatives mostly with good to high yields. Importantly, this new heterogenized palladium complex was easy to recover via filtration of the reaction mixture, and was recyclable up to 8 times without apparent drop in its catalytic performance.
Molecular Catalysis published new progress about Aralkyl chlorides Role: RCT (Reactant), RACT (Reactant or Reagent). 611-19-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C7H6Cl2, Electric Literature of 611-19-8.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics