Question

QUESTION 14 Which of the following mechanisms for the formation of the most stable imine is correct? H2NER H2NER A 16 іон, HUR R-NH2 CN Ph H-O: -CH3 Ph NH R Ph CH3 CH3 : ОН -CH3 Ph UNH R H H2N-R Ph -CH3 CNH Ph CH3 Ph CH3 H2N-R HN=R H₂NER B +H R-NH2 N : OH -CHE Ph Hö -CH3 Ph1 NH R OH CH3 Ph NH Ph CH3 Ph CH3 Ph CH3 Ph CH3 H H2N-R H2N-R H2N-R H2N-R с H R-NH2 UN H-OP -CH3 Ph Ph Ph COH2 -CH3 Ph SNH R CH3 CHA : он CH3 Ph INHO RH H2N-R Ph NH Ph CH3 CH3 R H2N-R H2NER H2NER D :OH R H-0 -CH3 Ph R.H H2N-R Ph CH3 CH3 Ph CH3 -CH3 +N- Ph Ph он, -CH3 Ph CNH RO Ph CH3 R R-NH H2N-R H2N-R

Answer 1

Imines are formed when a primary amine reacts with a carbonyl compound in the presence of an acid.

H2N-R H-N-R ÖH HR Com -H N-R OH 1 H2N-R Ph СнЗ Ph CH3 CH3 Ph СН3 Ph CH3 CH3 Ph Ph CH3 H2N-R NH-R NH-R NH-R H2N-R Correct option is A