One-Pot Synthesis of Indoles and Pyrazoles via Pd-Catalyzed Couplings/Cyclizations Enabled by Aqueous Micellar Catalysis
作者:Evan B. Landstrom、Nnamdi Akporji、Nicholas R. Lee、Christopher M. Gabriel、Felipe C. Braga、Bruce H. Lipshutz
DOI:10.1021/acs.orglett.0c02315
日期:2020.8.21
aminations followed by subsequent cyclizations facilitated by aqueous micellar catalysis. This new technology includes efficient couplings with low loadings of palladium, a more stable source of the required hydrazine moiety, greater atom economy for the initial coupling, and reduced reaction temperatures, all leading to environmentally responsible processes.
Mild and Rapid Pd-Catalyzed Cross-Coupling with Hydrazine in Continuous Flow: Application to the Synthesis of Functionalized Heterocycles
作者:Andrew DeAngelis、Dong-Hui Wang、Stephen L. Buchwald
DOI:10.1002/anie.201208544
日期:2013.3.18
CN cross‐coupling of aryl chlorides with hydrazine is described. Through the use of continuousflow, the hazards associated with the use of hydrazine in the presence of transition metals are decreased. In addition, multistep flow sequences have also been developed for the generation of functionalizedheterocycles utilizing the arylhydrazine intermediates.
Design and synthesis of novel tetrahydro-2H-Pyrano[3,2-c]Pyridazin-3(6H)-one derivatives as potential anticancer agents
作者:Taleb H. Al-Tel
DOI:10.1016/j.ejmech.2010.09.029
日期:2010.12
Polyfunctional tetrahydro-2H-pyrano[3,2-c]pyridazin-3(6H)-one derivatives were synthesized and biologically evaluated as novel anticancer agents. These motifs were produced by a five-step reaction sequence in which the Achmatowicz oxidative cyclization, is the basic core for such synthesis. Compounds 15f, 16c, and 16d showed antiproliferative activity against the SK-BR-3 breast cancer cell line. Importantly