5467-78-7Relevant articles and documents
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Houff
, p. 344 (1957)
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Iron-promoted sulfur sequestration for the substituent-dependent regioselective synthesis of tetrazoles and guanidines
Pendem, Venkata Bhavanarushi,Tamminana, Ramana,Nannapaneni, Madhavi
, p. 499 - 509 (2021/04/09)
We have established a facile and versatile synthetic methodology for the construction of tetrazoles and guanidines in the presence of an eco-friendly, inexpensive, easily available iron reagent. Aromatic thioureas with electron-donating substituents produced their respective target products in quantitative yield. In contrast, when electron-withdrawing substituted aromatic thioureas were used, the expected products were obtained in reduced yield. However, the desired products were obtained in good yield at moderate temperature. In addition, mechanistic studies revealed that the synthetic route involved iron-based subsequent reactions of addition and removal of sulfur.
Cu(II)-N-benzyl-amino-1H-tetrazole complex immobilized on magnetic chitosan as a highly effective nanocatalyst for C-N coupling reactions
Ghafuri, Hossein,Nasrollahzadeh, Mahmoud,Sajjadi, Mohaddeseh
, (2021/07/24)
Herein, the synthesis of a novel catalytic nanosystem with high activity and easy recoverability through immobilization of Cu(II)-N-benzyl-amino-1H-tetrazole complex on magnetic chitosan (MCS-BAT-Cu(II)) is reported. The catalytic potential of MCS-BAT-Cu(II) catalyst has been assessed in C-N coupling reaction of 5-amino-1H-tetrazole with aryl halides. Various aryl iodides/bromides were successfully coupled using MCS-BAT-Cu(II) catalyst for the synthesis of 1-aryl-5-amino-1H-tetrazoles with excellent reaction yields. In addition, the magnetic catalyst was easily and effectively separated from the reaction mixture using an external magnet and reused five times without notable loss of catalytic activity.