V11 (3

  • November 2019
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Sinteza 6-kloro-N2-etil-N4-metil-1,3,5-triazin-2,4-diamina Cl N N H

NH N

N

+ Cl

NH3 Cl

THF/voda

N

N

NaOH N H

1

N

Cl

2

4,6-dikloro-N-metil-1,3,5-triazin-2-amin (1) (2,5g, 14,0mmol) raztopimo v 20ml THF in zlijemo na 20ml zmesi led/voda, da dobimo fino suspenzijo. Etilamonijev klorid (1,14g, 14,0mmol) raztopimo v 10 ml vode, ohladimo na 0°C in ga po kapljicah dodajamo suspenziji z uporabo kapalnika z obhodom, pri čemer pazimo, da temperatura reakcijske zmesi ne preseže 5°C. Na enak način dodajamo še 2M NaOH (14,0ml, 28,0mmol). Po dodatku celotne količine reakcijsko zmes mešamo pri sobni temperaturi preko noči. Reakcijo spremljamo tudi s tankoplastno kromatografijo (MF: CH2Cl2:MeOH = 7:1). Po končani reakciji izpadlo oborino odfiltriramo z odsesavanjem in posušimo ter naslednji dan stehtamo.

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