在串联N-酰化/分子内[4 + 2]环加成反应中,使用马来酸,焦油酸和柠康酸酐以及呋喃基丙烯酰基,研究了糠醛胺的乙烯基化合物,可从呋喃丙烯醛(3-(呋喃基)烯丙胺)分两步轻松获得。和肉桂酰氯。通过在温和的条件下使用3-(呋喃基)烯丙胺和α,β-不饱和酸酐的多米诺反应,可以有效地合成各种六氢-4 H-呋喃[2,3- f ]异吲哚及其羧基衍生物。多米诺序列包括三个步骤:3-(呋喃基)烯丙胺中氮原子的酰化,分子内Diels-Alder环加成反应生成的N-酰基乙烯基呋喃(IMDAV反应),加合物发生质子转移,然后恢复呋喃核的芳香性。关键步骤,IMDAV反应,非对映选择性地产生目标产物呋喃[2,3- f ]异吲哚,并具有相对较高的收率。
在串联N-酰化/分子内[4 + 2]环加成反应中,使用马来酸,焦油酸和柠康酸酐以及呋喃基丙烯酰基,研究了糠醛胺的乙烯基化合物,可从呋喃丙烯醛(3-(呋喃基)烯丙胺)分两步轻松获得。和肉桂酰氯。通过在温和的条件下使用3-(呋喃基)烯丙胺和α,β-不饱和酸酐的多米诺反应,可以有效地合成各种六氢-4 H-呋喃[2,3- f ]异吲哚及其羧基衍生物。多米诺序列包括三个步骤:3-(呋喃基)烯丙胺中氮原子的酰化,分子内Diels-Alder环加成反应生成的N-酰基乙烯基呋喃(IMDAV反应),加合物发生质子转移,然后恢复呋喃核的芳香性。关键步骤,IMDAV反应,非对映选择性地产生目标产物呋喃[2,3- f ]异吲哚,并具有相对较高的收率。
Phosphine-Free Palladium Catalytic System for the Selective Direct Arylation of Furans or Thiophenes bearing Alkenes and Inhibition of Heck-Type Reaction
作者:Lu Chen、Julien Roger、Christian Bruneau、Pierre H. Dixneuf、Henri Doucet
DOI:10.1002/adsc.201100193
日期:2011.10
Palladium acetate associated to potassium carbonate as catalyticsystem has been found to efficiently catalyse the direct 5-arylation of furans or thiophenesbearing enal, enone or acrylate functions at carbon C-2, and to inhibit the Heck-typereaction. The nature of the base is crucial to control the selectivity of the arylation. In the presence of electron-deficient aryl bromides and potassium carbonate
Bi-functional complexes and methods for making and using such complexes
申请人:Gouliaev Alex Haahr
公开号:US11225655B2
公开(公告)日:2022-01-18
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.
BI-FUNCTIONAL COMPLEXES AND METHODS FOR MAKING AND USING SUCH COMPLEXES
申请人:Nuevolution A/S
公开号:EP2558577A1
公开(公告)日:2013-02-20
BI-FUNCTINAL COMPLEXES AND METHODS FOR MAKING AND USING SUCH COMPLEXES
申请人:Gouliaev Alex Haahr
公开号:US20130281324A1
公开(公告)日:2013-10-24
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.
[EN] BI-FUNCTIONAL COMPLEXES AND METHODS FOR MAKING AND USING SUCH COMPLEXES<br/>[FR] COMPLEXES BIFONCTIONNELS ET PROCÉDÉS DE FABRICATION ET D'UTILISATION DE TELS COMPLEXES
申请人:NUEVOLUTION AS
公开号:WO2011127933A1
公开(公告)日:2011-10-20
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.