BF3ÅEOEt2 Catalyzed [4+2] Cycloaddition Reactions of N-Aryl Schiff's Bases with 1-Alkenyl, 1,2-Propadienyl, and 1-Alkynyl Sulfides
摘要:
[4+2] Cycloaddition reaction proceeds between N-aryl Schiff's bases and I-alkenyl sulfides, a 1,2-propadienyl sulfide, or 1-alkynyl sulfides in the presence of BF3.OEt2 to provide 2-substituted quinoline derivatives. A 2-alkyl-4-quinolone alkaloid, leptomerine, is prepared by applying the present cycloaddition reaction.
[EN] COMPOUNDS AND COMPOSITIONS AS MODULATORS OF TLR SIGNALING<br/>[FR] COMPOSÉS ET COMPOSITIONS UTILISÉS EN TANT QUE MODULATEURS DE LA SIGNALISATION TLR
申请人:NEUROPORE THERAPIES INC
公开号:WO2020198368A1
公开(公告)日:2020-10-01
The present disclosure relates to compounds, pharmaceutical compositions comprising such compounds, and use of such compounds in methods of treatment or in medicaments for treatment of inflammatory diseases and certain neurological disorders that are related to inflammatory signaling processes, including but not limited to misfolded proteins.
[4+2] Cycloaddition reaction of N-arylaldimines with vinyl ethers is effectively catalyzed by ytterbium(III) triflate to give quinoline derivatives in good yields. Furthermore, the reaction with silyl enol ethers affords 4-siloxytetrahydroquinolines, whereas an imino aldol reaction takes place in the reaction with ketene silyl acetals.
A New Synthesis of Imines via Grignard- and Cuprate Additions to<i>N</i>-Trimethylsilylformamides
作者:Ben L. Feringa、Johan F. G. A. Jansen
DOI:10.1055/s-1988-27507
日期:——
Various imines and some amines were synthesized by the addition of Grignard reagents, homo- and hetero-cuprates to N-silylated-, N-alkyl-or N-arylformamides 1.
Diastereoselective additions of lithiated N-tertbutyldiphenylsilyl- S-methyl-S-phenylsulfoximine to imines and aldehydes
作者:Stephen G. Pyne、Branko Dikic
DOI:10.1016/s0040-4039(00)97851-1
日期:1990.1
Lithiated N-tert-butyldiphenylsilyl-S-methyl-S-phenylsulfoximine undergoes 1,2 addition to imines (R1CHNPh) and aldehydes (RCHO) to give diastereomeric adducts. The diastereoselection of the former reactions is dependent on the steric demand of the imine substituent R1, while that of the latter is independent of the steric demand of the aldehyde substituent R.
[EN] COMPOUNDS AS MODULATORS OF TLR2 SIGNALING<br/>[FR] COMPOSÉS UTILISÉS EN TANT QUE MODULATEURS DE SIGNALISATION TLR2
申请人:NEUROPORE THERAPIES INC
公开号:WO2019191189A1
公开(公告)日:2019-10-03
The present disclosure relates to compounds, pharmaceutical compositions comprising such compounds, and use of such compounds in methods of treatment or in medicaments for treatment of inflammatory diseases and certain neurological disorders that are related to inflammatory signaling processes, including but not limited to misfolded proteins.