Rate Acceleration of the Baylis−Hillman Reaction in Polar Solvents (Water and Formamide). Dominant Role of Hydrogen Bonding, Not Hydrophobic Effects, Is Implicated
作者:Varinder K. Aggarwal、David K. Dean、Andrea Mereu、Richard Williams
DOI:10.1021/jo016073y
日期:2002.1.1
A substantial acceleration of the Baylis-Hillmanreaction between cyclohexenone and benzaldehyde has been observed when the reaction is conducted in water. Several different amine catalysts were tested, and as with reactions conducted in the absence of solvent, 3-hydroxyquinuclidine was found to be the optimum catalyst in terms of rate. The reaction has been extended to other aldehyde electrophiles
[EN] NLRP3 INFLAMMASOME-INHIBITING COMPOUNDS AND THE USE THEREOF<br/>[FR] COMPOSÉS D'INHIBITION D'INFLAMMASOME DE NLRP3 ET LEUR UTILISATION
申请人:[en]UNIVERSITA' DEGLI STUDI DI TORINO
公开号:WO2022234447A1
公开(公告)日:2022-11-10
The invention relates to compounds of general formula (I), having inhibitory activity against the NLRP3 inflammasome. Said compounds are useful in the prevention and/or treatment of diseases and/or disorders mediated by the NLRP3 inflammasome.
Synthesis of Substituted 1H- and 3H-1-Benzazepines and Rearrangement of Alkyl 1H-1-Benzazepine-2-carboxylates into Isoquinolines
作者:Vijay Singh、Sanjay Batra
DOI:10.1002/ejoc.200700175
日期:2007.6
reduction of nitro groups in 2-nitro-4-(2-nitrobenzylidene)alkanoates and 4-nitro-2-(2-nitroalkylidene)alkanoates allows the facile synthesis of substituted 1H-1-benzazepines and 3H-1-benzazepines. This reaction proceeds via SN2′ reaction of ethyl nitroacetate and nitroethane with the acetyl derivatives of Baylis–Hillman adducts deriving from 2-nitro-substituted benzaldehydes. During the study, an unprecedented
Iodine-Mediated Intramolecular Electrophilic Aromatic Cyclization in Allylamines: A General Route to Synthesis of Quinolines, Pyrazolo[4,3-<i>b</i>]pyridines, and Thieno[3,2-<i>b</i>]pyridines
An unprecedented synthesis of aromatic ring annulated pyridines from suitably substituted primary allylamines via intramolecular electrophilic aromatic cyclization mediated by molecular iodine under mild conditions is described.