Facile Synthesis of 3-N-Alkyl Pyrimidin-2,4-diones from N-Sulfonyloxy Maleimides and Amines
摘要:
Reaction of variously substituted N-trifluoromethanesulfonyloxy maleimides with primary amines in the presence of potassium carbonate in DMF at room temperature results in the formation of 3-N-alkyl pyrimidin-2,4-diones in good yield.
Novel substituted azole diones are provided that kill cells, suppress cell proliferation, suppress cell growth, abrogate the cell cycle G2 checkpoint and/or cause adaptation to G2 cell cycle arrest. Methods of making and using the invention compounds are provided. The invention provides substituted azole diones to treat cell proliferation disorders. The invention includes the use of substituted azole diones to selectively kill or suppress cancer cells without additional anti-cancer treatment. The invention includes the use of cell cycle G2-checkpoint-abrogating substituted azole diones to selectively sensitize cancer cells to DNA damaging reagents, treatments and/or other types of anti-cancer reagents.
Herein, we report the first example of group transfer radical addition of O-vinylhydroxylamine derivatives onto unactivatedalkenes. By utilizing O-vinylhydroxylamine derivatives as both the N- and C-donors, this reaction enables intermolecular carboamination of unactivatedalkenes in an atom economical fashion. As the process is initiated through N-radical addition followed by C-transfer, linear carboamination
在此,我们报告了第一个将 O-乙烯基羟胺衍生物基团转移自由基加成到未活化烯烃上的例子。通过使用 O-乙烯基羟胺衍生物作为 N 和 C 供体,该反应能够以原子经济的方式对未活化的烯烃进行分子间碳胺化。由于该过程是通过 N-自由基加成和 C-转移引发的,因此提供了线性碳胺化产物。这与烯烃的经典自由基碳官能化不同,后者通常有利于支链产物,因为它是由 C-自由基加成引发的。
Chemoselective Union of Olefins, Organohalides, and Redox-Active Esters Enables Regioselective Alkene Dialkylation
作者:Tao Yang、Yi Jiang、Yixin Luo、Joel Jun Han Lim、Yu Lan、Ming Joo Koh
DOI:10.1021/jacs.0c09922
日期:2020.12.23
tolerates a wide array of complex functionalities, and enables regiodivergent addition of two primary alkyl groups bearing similar electronic and steric attributes across aliphatic C═C bonds with exquisite control of site selectivity. Utility is underscored by the concise synthesis of bioactive compounds and postreaction functionalizations leading to structurally diverse scaffolds. DFT studies revealed
Rhodium-Catalyzed Regio- and Enantioselective Addition of <i>N</i>-Hydroxyphthalimide to Allenes: A Strategy To Synthesize Chiral Allylic Alcohols
作者:Zi Liu、Bernhard Breit
DOI:10.1021/acs.orglett.7b03709
日期:2018.1.5
We achieved the first Rh-catalyzed regio- and enantioselectiveadditions of N-hydroxyphthalimide to allenes. This transformation is accomplished via mild reaction conditions, leveraging on Josiphos SL-J003-2 as a chiral ligand to furnish branched O-allyl compounds in good yields with moderate to excellent enantioselectivities. The substrate scope is broad, and various functional groups are tolerated