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040 _aAIKTC-KRRC
_cAIKTC-KRRC
100 _920691
_aChoudhary, Sunil Kumar
245 _aSynthesis and characterization of carbamates derivatives from 4-amino-1,2,4-triazole
250 _aVol.61(10), Oct
260 _aNew Delhi
_bCSIR
_c2022
300 _a1113-1119p.
520 _aCarbamate derivatives are proved to be an essential class of molecules because of their application as drugs and prodrugs. Their several derivatives also have been used to craft the drug-target interfaces by incorporating the carbamate moiety. Due to the huge demand in pharma-industries these have been extensively explored and synthesized. The synthesis and characterization of carbamate derivatives from 4-amino-1,2,4-triazoles and 3-(methylthio)-4-amino-1,2,4-triazoles are described. Carbamate derivatives of 4-amino-1,2,4-triazoles with phenyl chloroformate in CH3CN using K2CO3 at ca. ~80°C have been synthesized with good to excellent yield (~81 to 97%). The methodology has been subsequently extended for synthesis of carbamate derivatives of 3-(methylthio)-4-amino-1,2,4-triazoles in which bicarbamate derivatives are formed as major products (~39 to 47%) along with mono carbamate derivatives as minor products (~9 to 22%) in the presence of similar solvent and base. On investigating the effect of solvent and base, the reaction in CH3CN in presence of K2CO3 shows the best results.
650 0 _95009
_aGENERAL CHEMISTRY
700 _920692
_aTrivedi, Monika
773 0 _dNew Delhi NISCAIR-CSIR 2005
_tIndian journal of chemistry (Section B)
_x0019-5103
856 _uhttp://op.niscpr.res.in/index.php/IJC/article/view/67203
_yClick here
942 _2ddc
_cAR