Pd/PTABS: Low-Temperature Thioetherification of Chloro(hetero)arenes
作者:Siva Sankar Murthy Bandaru、Shatrughn Bhilare、Jesvita Cardozo、Nicolas Chrysochos、Carola Schulzke、Yogesh S. Sanghvi、Krishna Chaitanya Gunturu、Anant R. Kapdi
DOI:10.1021/acs.joc.9b00840
日期:2019.7.19
Heteroarenes of commercial relevance such as purines and pyrimidines were also found to be useful substrates for the reported transformation. The commercial drug Imuran (azathioprine) was synthesized as an example, and its preparation could be optimized. DFT studies were performed to understand the electronic effects of the tested ligands on the catalytic reaction.
HAIDER, NORBERT;VAN, DER PLAS HENK C., TETRAHEDRON, 46,(1990) N0, C. 3641-3650
作者:HAIDER, NORBERT、VAN, DER PLAS HENK C.
DOI:——
日期:——
Iron-Catalyzed S-Arylation of Benzothiazole with Aryl Iodides under Aqueous Medium: Facile Synthesis of Aryl(2-aminoaryl) Sulfides
作者:Ka Yung、Fuk Kwong、Hang Lee
DOI:10.1055/s-0034-1379484
日期:——
A simple route for facile access of aryl(2-aminoaryl) sulfide was reported. With the aid of iron(III) chloride catalyst and diamine ligand, benzothiazole was efficiently S-arylated with various aryliodides (19 examples) in water under air atmosphere. This operationally simple protocol provides aryl(2-aminoaryl) sulfides in moderate to good yields.
Intramolecular diels-alder reactions of pyrazines with alkynylphenyl moieties as side-chain dienophiles
作者:Norbert Haider、Henk C. van der Plas
DOI:10.1016/s0040-4020(01)81533-7
日期:1990.1
IntramolecularDiels-Alderreactions of (2-alkynylphenyl-X)-pyrazines (X = O, NAc, S) under neutral and acidic conditions are described. The isomer distribution of the resulting tricyclic b- and c-annelated pyridines is discussed.