α-Sulfenyl radical can be generated from α-chlorosulfide or dithioacetal. The olefin substituent effect on the intramolecularradicalcyclization of this type was studied.
Reduction of Aliphatic and Aromatic Cyclic Ketones tosec-Alcohols by Aqueous Titanium Trichloride/Ammonia System. Steric Course and Mechanistic Implications
In contrast to the dissolved metal and metal hydride reductions, the reduction of cyclic ketones by the aqueous TiCl3/NH3 system favours the formation of the less thermodynamically stable axial alcohol. The ammonium ion formed in situ is essential for the reduction to proceed because it behaves as a mild Bronsted acid in basic medium and favours the protonation of the intermediate ketyl. The corresponding
[EN] CERTAIN TRIAZOLOPYRIDINES AND TRIAZOLOPYRAZINES, COMPOSITIONS THEREOF AND METHODS OF USE THEREFOR<br/>[FR] CERTAINES TRIAZOLOPYRIDINES ET TRIAZOLOPYRAZINES, LEURS COMPOSITIONS ET LEURS PROCEDES D'UTILISATION
申请人:HUTCHISON MEDIPHARMA LTD
公开号:WO2011079804A1
公开(公告)日:2011-07-07
Provided are certain triazolopyridines and triazolopyrazines, compositions thereof and methods of use therefor.
[EN] APOPTOSIS SIGNAL-REGULATING KINASE 1 (ASK 1) INHIBITOR COMPOUNDS<br/>[FR] COMPOSÉS INHIBITEURS DE KINASE 1 (ASK 1) DE RÉGULATION DU SIGNAL DE L'APOPTOSE
申请人:SIDECAR THERAPEUTICS INC
公开号:WO2019070742A1
公开(公告)日:2019-04-11
Described herein are ASK1 inhibitors, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds in the treatment of conditions, diseases, or disorders associated with ASK1 activity.
Nucleophilic Substitution Reactions of (Alkoxymethylene)dimethylammonium Chloride
作者:Anthony G. M. Barrett、D. Christopher Braddock、Rachel A. James、Nobuyuki Koike、Panayiotis A. Procopiou
DOI:10.1021/jo980583j
日期:1998.9.1
The use of imidate esters as potential replacements for diethyl azodicarboxylate and triphenylphosphine in the Mitsunobu reaction is described. A series of secondary alcohols were allowed to react with (chloromethylene)dimethylammonium chloride, generated from dimethylformamide (DMF) and oxalyl chloride, to give imidate esters. Reaction of these salts with potassium benzoate or potassium phthalimide