A three-component reaction of aldehydes, amines and allyltributylstannane was efficiently carried out to afford the corresponding homoallylicamine derivatives in the presence of 20 mol% of MgI2 etherate [(MgI2*(OEt2) n ] under mild and neutral reaction conditions in good to excellent yields.
在温和和中性反应条件下,在 20 mol% MgI2 醚合物 [(MgI2*(OEt2) n ] 的存在下,醛、胺和烯丙基三丁基锡烷的三组分反应得到了相应的高烯丙基胺衍生物。优良的产量。
Allylstannane Allylation of Aldimines Activated by Chlorotrimethylsilane
作者:De-Kun Wang、Li-Xin Dai、Xue-Long Hou
DOI:10.1016/0040-4039(95)01848-c
日期:1995.11
Aldimines activated by chloroirimethsilane reacted with allystannane to give the corresponding homoallylic amines with excellent yields
由氯代异丁硅烷活化的醛亚胺与烯丙基锡烷反应生成相应的均一胺,收率极高
New synthetic approach to substituted isoindolo[2,1-a]quinoline carboxylic acids via intramolecular Diels–Alder reaction of 4-(N-furyl-2)-4-arylaminobutenes-1 with maleic anhydride
作者:Fedor I. Zubkov、Ekaterina V. Boltukhina、Konstantin F. Turchin、Roman S. Borisov、Alexey V. Varlamov
DOI:10.1016/j.tet.2005.02.017
日期:2005.4
Acylation of substituted 4-(furyl-2)-4-arylaminobut-1-enes with maleic anhydride provided 2-allyl-6-carboxy-4-oxo-3-aza-10-oxatricyclo[5.2.1.01,5]dec-8-enes in high yield under mild reaction conditions. The Diels–Alder adducts are formed via an initial amide formation followed by a stereoselectiveintramolecular [4+2] exo-cycloaddition reaction. Treatment of the tricyclic compounds with phosphoric
用马来酸酐酰化取代的4-(呋喃基-2)-4-芳基氨基丁-1-烯,得到2-烯丙基-6-羧基-4-氧代-3-氧杂-3-氮杂-10-氧杂三环[5.2.1.0 1,5 ] dec在温和的反应条件下,高产率的-8-烯。的狄尔斯-阿德耳加合物通过初始酰胺形成随后是立体选择性的分子内[4 + 2]形成外型-环反应。在高温(70–120°C)下用磷酸处理三环化合物可促进环醚的打开,分子内环化和芳构化,从而得到相应的四环化合物5,6,6a,11-四氢-10-羧基异吲哚[2, 1- a ]喹啉,产量中等。还讨论了酸和反应温度对环化反应的影响。
Palladium-Catalyzed, One-Pot, Three-Component Synthesis of Homoallylic Amines from Aldehydes, Anisidine, and Allyl Trifluoroacetate
作者:Robin E. Grote、Elizabeth R. Jarvo
DOI:10.1021/ol8026297
日期:2009.1.15
An allylation reaction that generates homoallylic amines usingallyl trifluoroacetate as a nucleophilic allylmetal precursor is reported. A palladium complex catalyzes two transformations in one pot: formation of allylsilane from allyl trifluoroacetate using hexamethyldisilane and subsequent imine allylation. A three-component reaction was developed where preformed imines were replaced with aldehydes
A catalytic system, Pd(OAC)(2)(10 mol %)-P(n-Bu)(3) (20 mol %)-Et3B (360 mol %), promotes allylic alcohols to undergo the allylation of anisidine-imines of aromatic and aliphatic aldehydes and furnishes homoallylamines in good to moderate yields. The reaction shows unique stereoselectivity, giving ant isomers selectively.