International Scholarly Research Notices

Research Article

Ferric Hydrogensulfate [ F e ( H S O πŸ’ ) πŸ‘ ] As a Reusable Heterogeneous Catalyst for the Synthesis of 5-Substituted-1H-Tetrazoles and Amides

Table 3

Preparation of primary amides from nitriles in the presence of Fe(HSO4)3.
m.p. ∘ C
EntryNitrileYield %aProductbFoundReportedLit.
1195850.fig.002366195850.fig.0024125-126126-127 [13]
2195850.fig.002560195850.fig.0026190189-190 [23]
3195850.fig.002772195850.fig.0028171-172170–172 [12]
4195850.fig.002965195850.fig.003093-9492-93 [13]
5195850.fig.003160195850.fig.0032164-165163–165 [12]
6195850.fig.003345195850.fig.003480-8181.3 [23]
7195850.fig.003547195850.fig.0036114-115114.8 [23]
8195850.fig.003745195850.fig.0038100-101100-101 [23]
9Cl–CH2–CN50Cl–CH2–CONH2119-120121 [23]
10195850.fig.003969195850.fig.004084-8584-85 [24]
11195850.fig.004160195850.fig.0042109-110110.5 [23]
(a) Yields refer to the isolated products. (b) The products were recrystallized from H2O-EtOH and characterized by IR and 1H-NMR spectroscopy, and also their melting points are compared with authentic samples.