Über die Enantiomerentrennung durch Verteilung zwischen flüssigen Phasen. 3. Mitteilung. Selektivität der lipophilen Weinsäureester für chirale Ammonium-Salze verschiedener Konstitution und Konfiguration
Separation of Enantiomers by Partition between Liquid Phases. 3. Communication. Selectivity of Lipophilic Tartaric Acid Esters for Chiral Ammonium Salts of Different Constitution and Configuration
通过液相之间的分配分离对映异构体。3.沟通。亲脂性酒石酸酯对不同组成和构型的手性铵盐的选择性
Aminohydroxylation of olefins with iminopyridinium ylides by dual Ir photocatalysis and Sc(OTf)3 catalysis
作者:Kazuki Miyazawa、Takashi Koike、Munetaka Akita
DOI:10.1016/j.tet.2016.05.045
日期:2016.12
We have developed a new strategy for catalytic aminohydroxylation of olefins with an N-protected iminopyridinium ylide as the amine source. Iminopyridinium ylides N-protected with TFAc (trifluoroacetyl), Boc (tert-butoxycarbonyl), Troc (2,2,2-trichloroethoxycarbonyl), and Alloc (allyloxycarbonyl) groups serve as N-centered radical precursors when combined with fac-[Ir(ppy)3] photocatalysis and Sc(OTf)3
Catalyst‐Free Electrophilic Ring Expansion of
<i>N</i>
‐Unprotected Aziridines with
<i>α</i>
‐Oxoketenes to Efficient Access 2‐Alkylidene‐1,3‐Oxazolidines
作者:Xingpeng Chen、Zhengshuo Huang、Jiaxi Xu
DOI:10.1002/adsc.202100320
日期:2021.6.21
2-(2-Oxoalkylidene)-1,3-oxazolidine derivatives were synthesized in good to excellent yields regiospecifically through the catalyst-free electrophilic ringexpansion of N-unprotected aziridines and the ketene C=O double bond of α-oxoketenes, in situ generated from the microwave-assisted Wolff rearrangement of 2-diazo-1,3-diketones. The ringexpansion predominantly underwent an SN1 process and the hydrogen
2-(2-氧代亚烷基)-1,3-恶唑烷衍生物通过无催化剂的N-未保护氮丙啶和α-氧代烯酮的烯酮C=O双键的无催化剂亲电子环膨胀,以良好到优异的产率区域特异性地合成,原位由 2-重氮-1,3-二酮的微波辅助沃尔夫重排产生。环膨胀主要经历了 S N 1 过程,氢键决定了产物的 ( E )-构型。
Lewis Acid-Catalyzed Addition of Benzophenone Imine to Epoxides Enables the Selective Synthesis and Derivatization of Primary 1,2-Amino Alcohols
作者:John Jin Lim、David C. Leitch
DOI:10.1021/acs.oprd.8b00133
日期:2018.5.18
Benzophenone imine was found to be an effective ammonia surrogate for the selective preparation of primary 1,2-amino alcohols fromepoxides, including enantiopure epichlorohydrin, in the presence of catalytic Y(OTf)3. High-throughput screening of 48 Lewis acids quickly identified Y(OTf)3 as an effective mediator of the addition reaction under mild conditions. Following acidic hydrolysis, the primary
The present invention relates generally to compositions and methods for treating cancer and neoplastic disease. Provided herein are substituted amidopyridine or amidopyridazine derivative compounds and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for inhibition histone demethylase. Furthermore, the subject compounds and compositions are useful for the treatment of cancer, such as prostate cancer, breast cancer, bladder cancer, lung cancer and/or melanoma and the like.