📜橙皮素置于吡啶,咪唑,甲醇,四(三苯基膦)钯,Ammonium Acetate,苯硫酚体系中,用 四氢呋喃,N-甲基吡咯烷酮 用作溶剂,化学反应 29.0H,反应生成5,7,3'-三羟基-4'-甲氧基-8-异戊烯基黄烷酮
参考文献:An Efficient Method For C8-Prenylation Of Flavonols And Flavanones
标题:An Efficient Method For C8-Prenylation Of Flavonols And Flavanones
摘要:Synthesis Of C8-Prenylated Flavonols And Flavanones Via The Palladium-Catalyzed 7-O-1,1-Dimethylprop-2-Enylation,Followed By Claisen Rearrangement Is Described. Two Regioselectivities (Carbon-Carbon Bond Formation At Either The Tail Or Head Of The Prenyl Group And Carbon-Carbon Bond Formation At Either C8 Or C6) Were Efficiently Improved When Acetic Anhydride Was Used As A Solvent Instead Of N,N-Dimethylformamide.
Doi:10.1055/s-0031-1290756