V11 (1

  • November 2019
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Sinteza 4,6-dikloro-N-metil-1,3,5-triazin-2-amina Cl N Cl

Cl N

N

+ Cl

NH3 Cl

THF/voda NaOH

N N H

N N

Cl

Cianuril klorid (5,0g, 27mmol) raztopimo v 30ml THF in zlijemo na 30ml zmesi led/voda, da dobimo fino suspenzijo. Metilamonijev klorid (1 ekv) 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 (2 ekv. NaOH). 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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