Par 辐射 de la tetramethyl-2,2,6,6 庚炔-4one-3 avec le tetramethylethylene dans C 6 H 6 , 形成 d'un cyclopropene-2ol-1 dont la thermolyse 导管 a une cetone allenique avec perte de C 3 H 6 . Par traitement avec NaOH形成d'une heptene-5one-3。Mecanisme: mise en jeu de carbenes
[EN] SULFONYL COMPOUNDS THAT INTERACT WITH GLUCOKINASE REGULATORY PROTEIN<br/>[FR] COMPOSÉS DE SULFONYLE QUI INTERAGISSENT AVEC LA PROTÉINE RÉGULATRICE DE LA GLUCOKINASE
申请人:AMGEN INC
公开号:WO2013123444A1
公开(公告)日:2013-08-22
The present invention relates to sulfonyl compounds that interact with glucokinase regulatory protein. In addition, the present invention relates to methods of treating type 2 diabetes, and other diseases and/or conditions where glucokinase regulatory protein is involved using the compounds, or pharmaceutically acceptable salts thereof, and pharmaceutical compositions that contain the compounds, or pharmaceutically acceptable salts thereof.
Cascade Reactions: Sequential Homobimetallic Catalysis Leading to Benzofurans and β,γ-Unsaturated Esters
作者:Bartolo Gabriele、Raffaella Mancuso、Giuseppe Salerno、Mirco Costa
DOI:10.1002/adsc.200606037
日期:2006.6
what we have named “sequentialhomobimetalliccatalysis”) has been shown to occur starting from 1-(2-allyloxyphenyl)-2-yn-1-ols 1 to afford 2-benzofuran-2-ylacetic esters 2 and β,γ-unsaturatedesters in high yields under carbonylative conditions. In view of the conceptual as well as the synthetic importance of the process, the mechanistic aspects and the synthetic scope of the reaction have been investigated
Mild and Phosphine-Free Iron-Catalyzed Cross-Coupling of Nonactivated Secondary Alkyl Halides with Alkynyl Grignard Reagents
作者:Chi Wai Cheung、Peng Ren、Xile Hu
DOI:10.1021/ol501087m
日期:2014.5.2
cross-coupling of nonactivated secondary alkylbromides and iodides with alkynyl Grignardreagents at room temperature has been developed. A wide range of secondary alkyl halides and terminal alkynes are tolerated to afford the substituted alkynes in good yields. A slight modification of the reaction protocol also allows for cross-coupling with a variety of primary alkyl halides.
Regioselective Rh-Catalyzed Hydroformylation of 1,1,3-Trisubstituted Allenes Using BisDiazaPhos Ligand
作者:Josephine Eshon、Clark R. Landis、Jennifer M. Schomaker
DOI:10.1021/acs.joc.7b01140
日期:2017.9.15
The efficient hydroformylation of 1,1,3-trisubstituted allenes is accomplished with low loadings of a Rh catalyst supported by a BisDiazaPhos (BDP) ligand. The ligand identity is key to achieving high regioselectivity, while the mild reaction conditions minimize competing isomerization and hydrogenation to produce β,γ-unsaturated aldehydes and their derivatives in excellent yields.
Synthesis and properties of a new kind of one-dimensional conductor VIII. Synthesis and characterization of trans-bis-1-alkynyl substituted silicon, germanium, tin phthalocyanines and germanium hemiporphyrazines
The preparation of several new trans-bis-1-alkynyl(phthalocyaninato)silicon (VIc—f), -germanium (VIIc—f) and -tin (VIIId, f) compounds as well as trans-bis-1-alkynyl(hemiporphyrazinato)germanium (XIc, e, f) derivatives is described. The products were obtained in high yields by treating the corresponding dichlorides (I, II, IV, X; X = (Cl) with 1-alkynyl Grignard reagents (Vc—f) in tetrahydrofuran (THF)
几种新的反式-双-1-炔基(邻苯二甲酰基萘)硅(VIc-f),-锗(VIIc-f)和-锡(VIIId,f)化合物以及反-双--1--1-炔基(hemiporphyrazinato)的制备描述了锗(XIc,e,f)衍生物。通过在四氢呋喃(THF)中用1-炔基格氏试剂(Vc-f)处理相应的二氯化物(I,II,IV,X; X =(Cl)),以高收率获得产物,并进行光谱表征。被认为是一种新型一维导体的模型。