Category: tetrahydroisoquinoline. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Half-Sandwich Iridium Complexes for the One-Pot Synthesis of Amides: Preparation, Structure, and Diverse Catalytic Activity. Author is Fan, Xiao-Nan; Deng, Wei; Liu, Zhen-Jiang; Yao, Zi-Jian.
Several types of air-stable N,O-coordinate half-sandwich iridium complexes containing Schiff base ligands with the general formula [Cp*IrClL] were synthesized in good yields. These stable iridium complexes displayed a good catalytic efficiency in amide synthesis. A variety of amides with different substituents were obtained in a one-pot procedure with excellent yields and high selectivities through the amidation of aldehydes with NH2OH·HCl and nitrile hydration under the catalysis of complexes 1-4. The excellent and diverse catalytic activity, mild conditions, broad substance scope, and environmentally friendly solvent make this system potentially applicable in industrial production Half-sandwich iridium complexes 1-4 were characterized by NMR, elemental anal., and IR techniques. Mol. structures of complexes 2 and 3 were confirmed by single-crystal X-ray anal. Half-sandwich iridium complexes were synthesized, which exhibited a high catalytic activity for amide synthesis in a one-pot procedure with excellent yields and high selectivity through aldehyde amidation or nitrile hydration. The broad substrate scope, mild reaction conditions, and high yields of the products made this catalytic system attractive in the industrial process.
As far as I know, this compound(1452-77-3)Category: tetrahydroisoquinoline can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem