Abstract
Microwaves have been used to produce a practical, high-yielding, and scalable synthesis
method for producing disubstituted 2H-indazoles. With this technique, a large class of 2H-indazoles
can be effectively produced from substituted 2-bromobenzaldehyde, aromatic amine and NaN3 using
[Cu(phen)(PPh3)2]NO3 as catalysts. With outstanding purity and yields, the current one-pot synthetic
sequence enables the addition of two structural diversity points to broaden the chemical space.
Graphical Abstract
[6]
Jena, S.; Mukherjee, M.; Maiti, B.; Chanda, K. Environ. Chem. Lett., 2021, 19, 3315.
[10]
Kusumoto, Y.; Hayashi, K.; Sato, S.; Yamada, T.; Kozono, I.; Nakata, Z.; Asada, N.; Mitsuki, S.; Watanabe, A.; Wakasa-Morimoto, C.; Uemura, K.; Arita, S.; Miki, S.; Mizutare, T.; Mikamiyama, H. ACS Med. Chem. Lett., 2022, 13(10), 1634-1641.
[13]
Airas, J.; Bayas, C.A.; N’Ait Ousidi, A. AitItto, M.Y.; Auhmani, A.; Loubidi, M.; Esseffar, M.; Pollock, J.A.; Parish, C.A. Eur. J. Med. Chem. Rep, 2022, 4, 100034.