935528-07-7Relevant academic research and scientific papers
Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core–Shell Cobalt Nanoparticles
Cui, Xinjiang,Li, Wu,Junge, Kathrin,Fei, Zhaofu,Beller, Matthias,Dyson, Paul J.
supporting information, p. 7501 - 7507 (2020/03/16)
Core–shell nanocatalysts are attractive due to their versatility and stability. Here, we describe cobalt nanoparticles encapsulated within graphitic shells prepared via the pyrolysis of a cationic poly-ionic liquid (PIL) with a cobalt(II) chloride anion. The resulting material has a core–shell structure that displays excellent activity and selectivity in the self-dehydrogenation and hetero-dehydrogenation of primary amines to their corresponding imines. Furthermore, the catalyst exhibits excellent activity in the synthesis of secondary imines from substrates with various reducible functional groups (C=C, C≡C and C≡N) and amino acid derivatives.
Catalytic Staudinger Reduction at Room Temperature
Lenstra, Danny C.,Wolf, Joris J.,Mecinovi?, Jasmin
, p. 6536 - 6545 (2019/05/24)
We report an efficient catalytic Staudinger reduction at room temperature that enables the preparation of a structurally diverse set of amines from azides in excellent yields. The reaction is based on the use of catalytic amounts of triphenylphosphine as a phosphine source and diphenyldisiloxane as a reducing agent. Our catalytic Staudinger reduction exhibits a high chemoselectivity, as exemplified by reduction of azides over other common functionalities, including nitriles, alkenes, alkynes, esters, and ketones.
Boron-Catalyzed Silylative Reduction of Nitriles in Accessing Primary Amines and Imines
Gandhamsetty, Narasimhulu,Jeong, Jinseong,Park, Juhyeon,Park, Sehoon,Chang, Sukbok
, p. 7281 - 7287 (2015/07/28)
Silylative reduction of nitriles was studied under transition metal-free conditions by using B(C6F5)3 as a catalyst with hydrosilanes as a reductant. Alkyl and (hetero)aryl nitriles were efficiently converted to primary amines or imines under mild conditions. The choice of silanes was found to determine the selectivity: while a full reduction of nitriles was highly facile, the use of sterically bulky silanes allowed for the partial reduction leading to N-silylimines.
Design and synthesis of dual-action inhibitors targeting histone deacetylases and 3-hydroxy-3-methylglutaryl coenzyme a reductase for cancer treatment
Chen, Jhih-Bin,Chern, Ting-Rong,Wei, Tzu-Tang,Chen, Ching-Chow,Lin, Jung-Hsin,Fang, Jim-Min
supporting information, p. 3645 - 3655 (2013/06/27)
A series of dual-action compounds were designed to target histone deacetylase (HDAC) and 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGR) by having a hydroxamate group essential for chelation with the zinc ion in the active site of HDAC and the key structural elements of statin for binding with both proteins. In our study, the statin hydroxamic acids prepared by a fused strategy are most promising in cancer treatments. These compounds showed potent inhibitory activities against HDACs and HMGR with IC50 values in the nanomolar range. These compounds also effectively reduced the HMGR activity as well as promoted the acetylations of histone and tubulin in cancer cells, but were not toxic to normal cells.
Novel N-substituted indol-3-ylglyoxylamides probing the LDi and L1/L2 lipophilic regions of the benzodiazepine receptor site in search for subtype-selective ligands
Primofiore, Giampaolo,Taliani, Sabrina,Da Settimo, Federico,Marini, Anna Maria,La Motta, Concettina,Simorini, Francesca,Patrizi, Maria Paola,Sergianni, Valentina,Novellino, Ettore,Greco, Giovanni,Cosimelli, Barbara,Calderone, Vincenzo,Montali, Marina,Besnard, Fran?ois,Martini, Claudia
, p. 1627 - 1634 (2007/10/03)
Novel N-substituted indol-3-ylglyoxylamides (10-37) were synthesized and evaluated as ligands of the benzodiazepine receptor (BzR). In an effort to achieve affinity-based selectivity among BzR subtypes, these compounds were designed to probe the LDi
